subject:(Lignin)

Oregon State University

1. Junyusen, Tiraporn. Wheat lignin as a functional dietary fiber component.

Degree: PhD, Food Science and Technology, 2013, Oregon State University

URL: http://hdl.handle.net/1957/44858

► This dissertation has focused on lignin byproducts that result from the alkali processing of wheat straw. The first study evaluated the application of “standard” lignin… (more)

▼ This dissertation has focused on lignin byproducts that result from the alkali processing of wheat straw. The first study evaluated the application of “standard” lignin quantification methods for summative analyses of alkali-based processes. Mass closure during NaOH processing at 25, 50, and 75°C of wheat straw was evaluated using the acid insoluble lignin (AIL) and acid soluble lignin (ASL) assays (per U.S. National Renewable Energy Laboratory guidance). In general, a fraction of the water and ethanol soluble extractives of straw measure as lignin, hereafter termed artifactual lignin. Actual AIL recovered from the alkali insoluble fraction resulting from alkali processing (AP) of extractive free wheat straw (EFS) at 25, 50 and 75°C was 64, 48, and 34% of the AIL in the original wheat straw, respectively. The percent overestimation of AIL in the insoluble phase from AP of native wheat straw (NS) decreased with increasing pretreatment severity. The trend was that the higher the severity of AP the lower the artifactual AIL in the insoluble phase. Summation of the AIL and ASL data indicated alkali processing resulted in a loss of both actual and artifactual AIL in both the soluble and insoluble phases. The amount of lignin loss in such processes was a function of the severity of the process. The second study focused on the recovery of wheat straw lignin via precipitation from alkali extract liquor (AEL). Lignin recovery is important due to lignin’s potential for subsequent value-added processing. In this work, wheat straw was treated with 5% NaOH at 50°C for 5 h to produce AEL. Lignin recovery from AEL, quantified as precipitated solids, acid insoluble lignin (AIL), and acid soluble lignin (ASL), was evaluated over a range of pH (1.5 to 7), temperature (4° to 70 °C), supplemental salts (0 to 2.5M) and presence/absence of hemicellulose. Lignin recovery, measured as ash-adjusted solids, generally increases as pH decreases. Temperature does not appear to significantly affect rates or extents of solids recovery at low pH; at neutral pH, increased temperature increased rates of precipitation but had minimal to no effect on extent of lignin recovery following a one hour precipitation period. At neutral pH and moderate temperature, ionic strength significantly affects solids recovery. Increased ionic strength increases rates and extents of lignin precipitation. Hemicellulose interferes with rates of lignin precipitation and appears to co-precipitate. Structural implications of these results are considered. The aim of the third study was to determine the feasibility of using lignin-rich fractions of alkali processed wheat straw as “functional dietary fibers” based on their in vitro bile acid binding capacity. Bile acid binding capacity is important in this context because of the documented relationship between fecal excretion of bile acids and serum cholesterol levels. In this study, wheat straw (WS), alkali extracted solids (AES), enzyme saccharification residues (ESR), and alkali lignin (AL) were used to determine bile… Advisors/Committee Members: Penner, Michael H. (advisor), Kelly, Christine (committee member).

Subjects/Keywords: Lignin

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APA (6^th Edition):

Junyusen, T. (2013). Wheat lignin as a functional dietary fiber component. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/44858

Chicago Manual of Style (16^th Edition):

Junyusen, Tiraporn. “Wheat lignin as a functional dietary fiber component.” 2013. Doctoral Dissertation, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/44858.

MLA Handbook (7^th Edition):

Junyusen, Tiraporn. “Wheat lignin as a functional dietary fiber component.” 2013. Web. 27 Feb 2021.

Vancouver:

Junyusen T. Wheat lignin as a functional dietary fiber component. [Internet] [Doctoral dissertation]. Oregon State University; 2013. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/44858.

Council of Science Editors:

Junyusen T. Wheat lignin as a functional dietary fiber component. [Doctoral Dissertation]. Oregon State University; 2013. Available from: http://hdl.handle.net/1957/44858

Oregon State University

2. Goby, Jeffrey Dean. Experimental approach for the determination of lignin modification by manganese peroxidase.

Degree: MS, Chemical Engineering, 2010, Oregon State University

URL: http://hdl.handle.net/1957/13827

► Degradation of lignin to simpler compounds is desirable for removing residual lignin during paper manufacture and accessing biomass carbohydrates for biofuel production, among other purposes.… (more)

▼ Degradation of lignin to simpler compounds is desirable for removing residual lignin during paper manufacture and accessing biomass carbohydrates for biofuel production, among other purposes. Lignin transformation using enzymes found in white rot fungi, some of nature's most efficient lignin-degrading organisms, offers a more environmentally benign, selective, and possibly less costly alternative to purely thermochemical means. One type of enzyme used by white rot fungi to degrade lignin in vivo is manganese peroxidase (MnP), which has been successfully purified from the native fungi and produced recombinantly in high yields. To facilitate investigation of lignin transformation by recombinant manganese peroxidase (rMnP), reaction systems were developed and assays refined to detect lignin transformation products. The systems were tested with different solid lignin substrates and sets of components that affect the ability of rMnP to degrade the solid substrate. In several experiments, the dye methylene blue was used as an rMnP substrate and lignin surrogate to rapidly determine the oxidative capacity of rMnP systems containing different short chain organic acids (malonate or oxalate), fatty acids (oleic, linoleic, or linolenic acids), and iron reducing agents (3,4-dihydroxyphenyl acetic acid, vanillic acid, wheat straw extracts). The dye was also used to determine the effect of a Fenton pretreatment on the ability of a subsequent rMnP treatment to degrade a substrate. Two solid wheat straw lignin substrates were used in the reaction system tests: acid insoluble lignin (AIL) and lignin remaining after dilute acid pretreatment, and cellulase saccharification and desorption (mild acid lignin, MAL). Degradation of AIL was undetected in an rMnP system containing malonate and hydrogen peroxide at several concentrations, but a colored high molecular weight (>10 kDa) Mn(III)-malonate complex was generated in the system with 0.1 mM hydrogen peroxide. Degradation of MAL or improved glucose yield due to synergy between cellulases and rMnP were also not definitively detected in a system containing rMnP, cellulases, and linoleic acid. On the other hand, rMnP-induced cellulase inhibition did appear to occur. The rMnP systems containing an emulsified polyunsaturated fatty acid (linoleic acid or linolenic acid) were more effective at degrading methylene blue dye than rMnP systems containing malonate or oxalate in place of the fatty acid. This was likely due to formation of reactive lipid peroxyl radicals which oxidized the dye by hydrogen or electron abstraction. Addition of malonate, oxalate, or iron reducing agent to the rMnP system with emulsified linoleic acid resulted in variable dye degradation. Each iron reducing agent inhibited degradation, oxalate had no effect, and malonate drastically increased the degradation rate. It is likely that malonate increased the degradation rate because it promoted rMnP production of Mn(III) chelates. Degradation in this rMnP system depended on the presence of rMnP and manganese, but occurred… Advisors/Committee Members: Kelly, Christine J. (advisor), Kamke, Frederick A. (committee member).

Subjects/Keywords: lignin; Lignin – Biodegradation

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APA (6^th Edition):

Goby, J. D. (2010). Experimental approach for the determination of lignin modification by manganese peroxidase. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/13827

Chicago Manual of Style (16^th Edition):

Goby, Jeffrey Dean. “Experimental approach for the determination of lignin modification by manganese peroxidase.” 2010. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/13827.

MLA Handbook (7^th Edition):

Goby, Jeffrey Dean. “Experimental approach for the determination of lignin modification by manganese peroxidase.” 2010. Web. 27 Feb 2021.

Vancouver:

Goby JD. Experimental approach for the determination of lignin modification by manganese peroxidase. [Internet] [Masters thesis]. Oregon State University; 2010. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/13827.

Council of Science Editors:

Goby JD. Experimental approach for the determination of lignin modification by manganese peroxidase. [Masters Thesis]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/13827

University of Minnesota

3. Mahmood, Samsul Arfin. Thermo-Mechanical Characteristics of Polyethylene/Tobacco Lignin Blends.

Degree: M.S.M.E., Mechanical Engineering, 2019, University of Minnesota

URL: http://hdl.handle.net/11299/211701

► With the expected exponential growth prospects of additive manufacturing, petroleum-based plastic products and applications are also expected to increase. Since last two decades, plastic pollution… (more)

Subjects/Keywords: Biodegradability; Lignin; Polyethylene Lignin blends; Tobacco lignin

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APA (6^th Edition):

Mahmood, S. A. (2019). Thermo-Mechanical Characteristics of Polyethylene/Tobacco Lignin Blends. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/211701

Chicago Manual of Style (16^th Edition):

Mahmood, Samsul Arfin. “Thermo-Mechanical Characteristics of Polyethylene/Tobacco Lignin Blends.” 2019. Masters Thesis, University of Minnesota. Accessed February 27, 2021. http://hdl.handle.net/11299/211701.

MLA Handbook (7^th Edition):

Mahmood, Samsul Arfin. “Thermo-Mechanical Characteristics of Polyethylene/Tobacco Lignin Blends.” 2019. Web. 27 Feb 2021.

Vancouver:

Mahmood SA. Thermo-Mechanical Characteristics of Polyethylene/Tobacco Lignin Blends. [Internet] [Masters thesis]. University of Minnesota; 2019. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11299/211701.

Council of Science Editors:

Mahmood SA. Thermo-Mechanical Characteristics of Polyethylene/Tobacco Lignin Blends. [Masters Thesis]. University of Minnesota; 2019. Available from: http://hdl.handle.net/11299/211701

Oregon State University

4. Caskey, Frank Edward. A study of the nature of benzyl alcohol lignin.

Degree: MA, Chemistry, 1941, Oregon State University

URL: http://hdl.handle.net/1957/51615

Subjects/Keywords: Lignin

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APA (6^th Edition):

Caskey, F. E. (1941). A study of the nature of benzyl alcohol lignin. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/51615

Chicago Manual of Style (16^th Edition):

Caskey, Frank Edward. “A study of the nature of benzyl alcohol lignin.” 1941. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/51615.

MLA Handbook (7^th Edition):

Caskey, Frank Edward. “A study of the nature of benzyl alcohol lignin.” 1941. Web. 27 Feb 2021.

Vancouver:

Caskey FE. A study of the nature of benzyl alcohol lignin. [Internet] [Masters thesis]. Oregon State University; 1941. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/51615.

Council of Science Editors:

Caskey FE. A study of the nature of benzyl alcohol lignin. [Masters Thesis]. Oregon State University; 1941. Available from: http://hdl.handle.net/1957/51615

Oregon State University

5. Lovin, Robert Joseph. A preliminary investigation of the catalytic hydrogenation of sulfonated lignin.

Degree: MS, Chemistry, 1941, Oregon State University

URL: http://hdl.handle.net/1957/52178

Subjects/Keywords: Lignin

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APA (6^th Edition):

Lovin, R. J. (1941). A preliminary investigation of the catalytic hydrogenation of sulfonated lignin. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52178

Chicago Manual of Style (16^th Edition):

Lovin, Robert Joseph. “A preliminary investigation of the catalytic hydrogenation of sulfonated lignin.” 1941. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52178.

MLA Handbook (7^th Edition):

Lovin, Robert Joseph. “A preliminary investigation of the catalytic hydrogenation of sulfonated lignin.” 1941. Web. 27 Feb 2021.

Vancouver:

Lovin RJ. A preliminary investigation of the catalytic hydrogenation of sulfonated lignin. [Internet] [Masters thesis]. Oregon State University; 1941. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52178.

Council of Science Editors:

Lovin RJ. A preliminary investigation of the catalytic hydrogenation of sulfonated lignin. [Masters Thesis]. Oregon State University; 1941. Available from: http://hdl.handle.net/1957/52178

Oregon State University

6. McCully, Charles Roland. Studies on the lignin of western woods.

Degree: MS, Chemistry, 1937, Oregon State University

URL: http://hdl.handle.net/1957/52506

Subjects/Keywords: Lignin

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APA (6^th Edition):

McCully, C. R. (1937). Studies on the lignin of western woods. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52506

Chicago Manual of Style (16^th Edition):

McCully, Charles Roland. “Studies on the lignin of western woods.” 1937. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52506.

MLA Handbook (7^th Edition):

McCully, Charles Roland. “Studies on the lignin of western woods.” 1937. Web. 27 Feb 2021.

Vancouver:

McCully CR. Studies on the lignin of western woods. [Internet] [Masters thesis]. Oregon State University; 1937. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52506.

Council of Science Editors:

McCully CR. Studies on the lignin of western woods. [Masters Thesis]. Oregon State University; 1937. Available from: http://hdl.handle.net/1957/52506

Oregon State University

7. Englert, Robert Dixon. A study of the chemical utilization of Scholler lignin through chemical modification by reaction with certain ammonia type nitrogen compounds.

Degree: MS, Physical Chemistry, 1944, Oregon State University

URL: http://hdl.handle.net/1957/52906

Subjects/Keywords: Lignin

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APA (6^th Edition):

Englert, R. D. (1944). A study of the chemical utilization of Scholler lignin through chemical modification by reaction with certain ammonia type nitrogen compounds. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52906

Chicago Manual of Style (16^th Edition):

Englert, Robert Dixon. “A study of the chemical utilization of Scholler lignin through chemical modification by reaction with certain ammonia type nitrogen compounds.” 1944. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52906.

MLA Handbook (7^th Edition):

Englert, Robert Dixon. “A study of the chemical utilization of Scholler lignin through chemical modification by reaction with certain ammonia type nitrogen compounds.” 1944. Web. 27 Feb 2021.

Vancouver:

Englert RD. A study of the chemical utilization of Scholler lignin through chemical modification by reaction with certain ammonia type nitrogen compounds. [Internet] [Masters thesis]. Oregon State University; 1944. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52906.

Council of Science Editors:

Englert RD. A study of the chemical utilization of Scholler lignin through chemical modification by reaction with certain ammonia type nitrogen compounds. [Masters Thesis]. Oregon State University; 1944. Available from: http://hdl.handle.net/1957/52906

Oregon State University

8. Southworth, Hugh Alexander. The mechanism of the sulfonation of lignin as revealed by its reaction with methyl hypochlorite.

Degree: MS, Science, 1943, Oregon State University

URL: http://hdl.handle.net/1957/52927

Subjects/Keywords: Lignin

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APA (6^th Edition):

Southworth, H. A. (1943). The mechanism of the sulfonation of lignin as revealed by its reaction with methyl hypochlorite. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52927

Chicago Manual of Style (16^th Edition):

Southworth, Hugh Alexander. “The mechanism of the sulfonation of lignin as revealed by its reaction with methyl hypochlorite.” 1943. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52927.

MLA Handbook (7^th Edition):

Southworth, Hugh Alexander. “The mechanism of the sulfonation of lignin as revealed by its reaction with methyl hypochlorite.” 1943. Web. 27 Feb 2021.

Vancouver:

Southworth HA. The mechanism of the sulfonation of lignin as revealed by its reaction with methyl hypochlorite. [Internet] [Masters thesis]. Oregon State University; 1943. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52927.

Council of Science Editors:

Southworth HA. The mechanism of the sulfonation of lignin as revealed by its reaction with methyl hypochlorite. [Masters Thesis]. Oregon State University; 1943. Available from: http://hdl.handle.net/1957/52927

Oregon State University

9. Ezell, Albert Iven. Preparation and properties of the acetyl, benzoyl and methyl derivatives of soda lignin.

Degree: MS, Science, 1943, Oregon State University

URL: http://hdl.handle.net/1957/53040

Subjects/Keywords: Lignin

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APA (6^th Edition):

Ezell, A. I. (1943). Preparation and properties of the acetyl, benzoyl and methyl derivatives of soda lignin. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/53040

Chicago Manual of Style (16^th Edition):

Ezell, Albert Iven. “Preparation and properties of the acetyl, benzoyl and methyl derivatives of soda lignin.” 1943. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/53040.

MLA Handbook (7^th Edition):

Ezell, Albert Iven. “Preparation and properties of the acetyl, benzoyl and methyl derivatives of soda lignin.” 1943. Web. 27 Feb 2021.

Vancouver:

Ezell AI. Preparation and properties of the acetyl, benzoyl and methyl derivatives of soda lignin. [Internet] [Masters thesis]. Oregon State University; 1943. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/53040.

Council of Science Editors:

Ezell AI. Preparation and properties of the acetyl, benzoyl and methyl derivatives of soda lignin. [Masters Thesis]. Oregon State University; 1943. Available from: http://hdl.handle.net/1957/53040

Oregon State University

10. Pehrsson, Hildger Alfred. The solvent extraction of lignin with dioxane.

Degree: MS, Chemical Engineering, 1949, Oregon State University

URL: http://hdl.handle.net/1957/52941

Subjects/Keywords: Lignin

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APA (6^th Edition):

Pehrsson, H. A. (1949). The solvent extraction of lignin with dioxane. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52941

Chicago Manual of Style (16^th Edition):

Pehrsson, Hildger Alfred. “The solvent extraction of lignin with dioxane.” 1949. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52941.

MLA Handbook (7^th Edition):

Pehrsson, Hildger Alfred. “The solvent extraction of lignin with dioxane.” 1949. Web. 27 Feb 2021.

Vancouver:

Pehrsson HA. The solvent extraction of lignin with dioxane. [Internet] [Masters thesis]. Oregon State University; 1949. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52941.

Council of Science Editors:

Pehrsson HA. The solvent extraction of lignin with dioxane. [Masters Thesis]. Oregon State University; 1949. Available from: http://hdl.handle.net/1957/52941

Oregon State University

11. Erickson, Donald Lindsay. Solvent fractionation of lignin prepared from western hemlock by extraction with benzyl alcohol.

Degree: MS, Chemistry, 1939, Oregon State University

URL: http://hdl.handle.net/1957/52987

Subjects/Keywords: Lignin

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APA (6^th Edition):

Erickson, D. L. (1939). Solvent fractionation of lignin prepared from western hemlock by extraction with benzyl alcohol. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/52987

Chicago Manual of Style (16^th Edition):

Erickson, Donald Lindsay. “Solvent fractionation of lignin prepared from western hemlock by extraction with benzyl alcohol.” 1939. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/52987.

MLA Handbook (7^th Edition):

Erickson, Donald Lindsay. “Solvent fractionation of lignin prepared from western hemlock by extraction with benzyl alcohol.” 1939. Web. 27 Feb 2021.

Vancouver:

Erickson DL. Solvent fractionation of lignin prepared from western hemlock by extraction with benzyl alcohol. [Internet] [Masters thesis]. Oregon State University; 1939. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/52987.

Council of Science Editors:

Erickson DL. Solvent fractionation of lignin prepared from western hemlock by extraction with benzyl alcohol. [Masters Thesis]. Oregon State University; 1939. Available from: http://hdl.handle.net/1957/52987

Oregon State University

12. Rydalch, Eva Ann. The determination of the approximate molecular weight, particle size, and homogeneity of some soda lignins.

Degree: MS, Organic Chemistry, 1948, Oregon State University

URL: http://hdl.handle.net/1957/53517

Subjects/Keywords: Lignin

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APA (6^th Edition):

Rydalch, E. A. (1948). The determination of the approximate molecular weight, particle size, and homogeneity of some soda lignins. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/53517

Chicago Manual of Style (16^th Edition):

Rydalch, Eva Ann. “The determination of the approximate molecular weight, particle size, and homogeneity of some soda lignins.” 1948. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/53517.

MLA Handbook (7^th Edition):

Rydalch, Eva Ann. “The determination of the approximate molecular weight, particle size, and homogeneity of some soda lignins.” 1948. Web. 27 Feb 2021.

Vancouver:

Rydalch EA. The determination of the approximate molecular weight, particle size, and homogeneity of some soda lignins. [Internet] [Masters thesis]. Oregon State University; 1948. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/53517.

Council of Science Editors:

Rydalch EA. The determination of the approximate molecular weight, particle size, and homogeneity of some soda lignins. [Masters Thesis]. Oregon State University; 1948. Available from: http://hdl.handle.net/1957/53517

Oregon State University

13. Kroll, Robert Louis. Carbonization products from Scholler lignin.

Degree: MA, Chemistry, 1947, Oregon State University

URL: http://hdl.handle.net/1957/53672

Subjects/Keywords: Lignin

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APA (6^th Edition):

Kroll, R. L. (1947). Carbonization products from Scholler lignin. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/53672

Chicago Manual of Style (16^th Edition):

Kroll, Robert Louis. “Carbonization products from Scholler lignin.” 1947. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/53672.

MLA Handbook (7^th Edition):

Kroll, Robert Louis. “Carbonization products from Scholler lignin.” 1947. Web. 27 Feb 2021.

Vancouver:

Kroll RL. Carbonization products from Scholler lignin. [Internet] [Masters thesis]. Oregon State University; 1947. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/53672.

Council of Science Editors:

Kroll RL. Carbonization products from Scholler lignin. [Masters Thesis]. Oregon State University; 1947. Available from: http://hdl.handle.net/1957/53672

14. Danupong Narapakdeesakul. Extraction, Separation and application of lignin from oil palm empty fruit bunch for linearboard coating .

Degree: คณะอุตสาหกรรมเกษตร ภาควิชาเทคโนโลยีวัสดุภัณฑ์, 2013, Prince of Songkla University

URL: http://kb.psu.ac.th/psukb/handle/2010/9579

Subjects/Keywords: Lignin

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APA (6^th Edition):

Narapakdeesakul, D. (2013). Extraction, Separation and application of lignin from oil palm empty fruit bunch for linearboard coating . (Thesis). Prince of Songkla University. Retrieved from http://kb.psu.ac.th/psukb/handle/2010/9579

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Narapakdeesakul, Danupong. “Extraction, Separation and application of lignin from oil palm empty fruit bunch for linearboard coating .” 2013. Thesis, Prince of Songkla University. Accessed February 27, 2021. http://kb.psu.ac.th/psukb/handle/2010/9579.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Narapakdeesakul, Danupong. “Extraction, Separation and application of lignin from oil palm empty fruit bunch for linearboard coating .” 2013. Web. 27 Feb 2021.

Vancouver:

Narapakdeesakul D. Extraction, Separation and application of lignin from oil palm empty fruit bunch for linearboard coating . [Internet] [Thesis]. Prince of Songkla University; 2013. [cited 2021 Feb 27]. Available from: http://kb.psu.ac.th/psukb/handle/2010/9579.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Narapakdeesakul D. Extraction, Separation and application of lignin from oil palm empty fruit bunch for linearboard coating . [Thesis]. Prince of Songkla University; 2013. Available from: http://kb.psu.ac.th/psukb/handle/2010/9579

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

15. Rockhill, Robert Clayton. Fungal growth responses to a photooxidized sodium ligninsulfonate.

Degree: MS, Microbiology and Hygiene, 1970, Oregon State University

URL: http://hdl.handle.net/1957/46270

► Sodium ligninsulfonate, a water soluble wide-range molecular weight polymeric by-product of the paper pulping industry, is added as waste effluent to water ways or burned,… (more)

▼ Sodium ligninsulfonate, a water soluble wide-range molecular weight polymeric by-product of the paper pulping industry, is added as waste effluent to water ways or burned, causing extreme pollution. The polymer is highly resistant to biodegradation. Therefore, modification of the structure to a more readily biodegradable form would be desirable, to be able to use this material for economic recovery, such as single cell protein (SCP), or other useful products. The ideal method of alteration would be one which did not in itself lead to other unwanted waste products such as would be inherent in a chemical process. In this study a sodium ligninsulfonate, Marasperse CB, was phototreated using a mercury-vapor ultraviolet lamp. Parameters studied during photolysis were oxygen effects, initial starting pH, temperature and wavelength ranges. Analytical methods included total carbon, thin layer chromatography, spectrophotometry, and fungal dry weight. The photolyzed ligninsulfonate was then used as a growth substrate for an Aspergillus isolated from soil enrichment. Definitive improvement of ligninsulfonate biological availability was demonstrated after photo-treatment of initial pH 3, 7 and 12 solutions. The response of the Aspergillus isolate was substantiated by assays of substrate carbon before and after growth, dry weights in relation to photolysis treatment time, and semiquantitative thin layer chromatography. The highest fungal yield came from the initial pH3 solution followed closely by the initial pH 12 solution. The pH 7 solution was approximately 50 percent of the former two. The greatest loss of carbon after growth occurred in the pH 3 and 12 solutions. Thin layer chromatography showed that during irradiation three new components were formed and three existing components increased in concentration as irradiation times increased. All of these components were reduced below detection limits after use of the solution as a growth medium. Carbon retention after irradiation was greatest in the initial pH 3 and 12 solutions as compared to the pH 7 solution. Photolysis occurred most efficiently in the pH 3 solution with regard to time, fungal yield, carbon loss after growth, and substrate utilization efficiency (fungal dry weight/carbon utilized). Wavelengths less than 210 nm allowed the most rapid modification with wavelengths greater than 280 nm causing essentially no short-term change. Photolysis of the ligninsulfonate was found to be temperature independent and oxygen dependent, showing a true primary photodecomposition mode. Photo-treatment of ligninsulfonate and definitive fungal growth response to the irradiated solution suggests that this treatment could be applied to improve biodegradation of other recalcitrant structures as well. Advisors/Committee Members: Klein, D. A. (advisor).

Subjects/Keywords: Lignin

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APA (6^th Edition):

Rockhill, R. C. (1970). Fungal growth responses to a photooxidized sodium ligninsulfonate. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/46270

Chicago Manual of Style (16^th Edition):

Rockhill, Robert Clayton. “Fungal growth responses to a photooxidized sodium ligninsulfonate.” 1970. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/46270.

MLA Handbook (7^th Edition):

Rockhill, Robert Clayton. “Fungal growth responses to a photooxidized sodium ligninsulfonate.” 1970. Web. 27 Feb 2021.

Vancouver:

Rockhill RC. Fungal growth responses to a photooxidized sodium ligninsulfonate. [Internet] [Masters thesis]. Oregon State University; 1970. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/46270.

Council of Science Editors:

Rockhill RC. Fungal growth responses to a photooxidized sodium ligninsulfonate. [Masters Thesis]. Oregon State University; 1970. Available from: http://hdl.handle.net/1957/46270

Karlstad University

16. Botström, Julia. Biodieseltillverkning av lignin från pappers- och massaindustrin : Framställning, LCI och kostnadsanalys.

Degree: Science and Technology (starting 2013), 2015, Karlstad University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38093

► Att minska användningen av petroleumbaserade bränslen och hitta förnybara alternativ till drivmedel rankas som en av de största utmaningar människan står inför. Tidigare försök… (more)

Subjects/Keywords: Lignin; Biodiesel

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APA (6^th Edition):

Botström, J. (2015). Biodieseltillverkning av lignin från pappers- och massaindustrin : Framställning, LCI och kostnadsanalys. (Thesis). Karlstad University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38093

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Botström, Julia. “Biodieseltillverkning av lignin från pappers- och massaindustrin : Framställning, LCI och kostnadsanalys.” 2015. Thesis, Karlstad University. Accessed February 27, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38093.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Botström, Julia. “Biodieseltillverkning av lignin från pappers- och massaindustrin : Framställning, LCI och kostnadsanalys.” 2015. Web. 27 Feb 2021.

Vancouver:

Botström J. Biodieseltillverkning av lignin från pappers- och massaindustrin : Framställning, LCI och kostnadsanalys. [Internet] [Thesis]. Karlstad University; 2015. [cited 2021 Feb 27]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38093.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Botström J. Biodieseltillverkning av lignin från pappers- och massaindustrin : Framställning, LCI och kostnadsanalys. [Thesis]. Karlstad University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38093

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Arizona

17. Ciaramitaro, David Alexander, 1946-. THE SYNTHESIS AND REACTIONS OF LIGNIN MODEL COMPOUNDS .

Degree: 1974, University of Arizona

URL: http://hdl.handle.net/10150/288201

Subjects/Keywords: Lignin.

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APA (6^th Edition):

Ciaramitaro, David Alexander, 1. (1974). THE SYNTHESIS AND REACTIONS OF LIGNIN MODEL COMPOUNDS . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/288201

Chicago Manual of Style (16^th Edition):

Ciaramitaro, David Alexander, 1946-. “THE SYNTHESIS AND REACTIONS OF LIGNIN MODEL COMPOUNDS .” 1974. Doctoral Dissertation, University of Arizona. Accessed February 27, 2021. http://hdl.handle.net/10150/288201.

MLA Handbook (7^th Edition):

Ciaramitaro, David Alexander, 1946-. “THE SYNTHESIS AND REACTIONS OF LIGNIN MODEL COMPOUNDS .” 1974. Web. 27 Feb 2021.

Vancouver:

Ciaramitaro, David Alexander 1. THE SYNTHESIS AND REACTIONS OF LIGNIN MODEL COMPOUNDS . [Internet] [Doctoral dissertation]. University of Arizona; 1974. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10150/288201.

Council of Science Editors:

Ciaramitaro, David Alexander 1. THE SYNTHESIS AND REACTIONS OF LIGNIN MODEL COMPOUNDS . [Doctoral Dissertation]. University of Arizona; 1974. Available from: http://hdl.handle.net/10150/288201

University of British Columbia

18. Wu, Yeng-tsu. Intra-increment lignin content of five western Canadian coniferous woods.

Degree: Master of Forestry - MF, Forestry, 1964, University of British Columbia

URL: http://hdl.handle.net/2429/38358

► Lignin contents of extractive-free wood meals prepared from three adjacent rings of mature wood, sampled at breast height, of amabilis fir, Douglas fir, western red… (more)

▼ Lignin contents of extractive-free wood meals prepared from three adjacent rings of mature wood, sampled at breast height, of amabilis fir, Douglas fir, western red cedar, Sitka spruce, and western hemlock were determined according to the micro-method of Johnson, Moore and Zank. Each of three rings within each species was divided into six positions from earlywood to latewood. Wood meals of 40-80 mesh size were extracted successively with ethyl ether, absolute ethyl alcohol and hot-water, and then solubilized with acetyl bromide and absorbence was calibrated against Klason lignin values. Wood methoxyl content of these same samples had been studied previously. Lignin contents were found to be highly significantly different within positions of growth increments for amabilis fir, Douglas fir, western red cedar and Sitka spruce, but no significant difference was found for western hemlock. Highly significant difference was found between growth rings for western red cedar and similarly significant difference was found for Douglas fir. No significant differences were obtained between growth rings for the other three species, although a slight but definite increase in lignin content with age was observed. Highly significant differences were also found between species and for total averages of each position for the five species. Earlywoods were higher in lignin content than latewood in each species by: Douglas fir, 2.27%; amabilis fir, 2.06%; western red cedar, 1.28%; Sitka spruce, 1.08%; and western hemlock, 0.46%. Lignin contents for individual species were in the order of: western hemlock, 32.85% (32.36-34.04%); western red cedar, 31.23% (29.69-32.68%); amabilis fir, 27.51% (26.17-28.24%); Douglas fir, 26.48% (24.08-28.66%); and Sitka spruce, 25.81% (24.91-26.98%). The correlation coefficient testing association between lignin and wood methoxyl was highly significant for amabilis fir (0.971), Douglas fir (O.913) and western red cedar (0.684). Non-significant correlation occurred with Sitka spruce (0.467) and western hemlock (0.340). The relationship between lignin and wood methoxyl appeared independent of species. The non-lignin methoxyl contents for the five species were estimated and the results showed that these were also independent of species.

Subjects/Keywords: Lignin

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APA (6^th Edition):

Wu, Y. (1964). Intra-increment lignin content of five western Canadian coniferous woods. (Masters Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/38358

Chicago Manual of Style (16^th Edition):

Wu, Yeng-tsu. “Intra-increment lignin content of five western Canadian coniferous woods.” 1964. Masters Thesis, University of British Columbia. Accessed February 27, 2021. http://hdl.handle.net/2429/38358.

MLA Handbook (7^th Edition):

Wu, Yeng-tsu. “Intra-increment lignin content of five western Canadian coniferous woods.” 1964. Web. 27 Feb 2021.

Vancouver:

Wu Y. Intra-increment lignin content of five western Canadian coniferous woods. [Internet] [Masters thesis]. University of British Columbia; 1964. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2429/38358.

Council of Science Editors:

Wu Y. Intra-increment lignin content of five western Canadian coniferous woods. [Masters Thesis]. University of British Columbia; 1964. Available from: http://hdl.handle.net/2429/38358

19. Al-shahrani, Dalia, 1990-. Understanding the self-assembly of lignin-based biomaterials.

Degree: MS, Chemistry, 2018, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/56992/

► Developing bio-renewable raw materials for manufacturing and technology has become a focus of research, with special interest in the field of biomaterials. Lignocellulosic biomass can… (more)

▼ Developing bio-renewable raw materials for manufacturing and technology has become a focus of research, with special interest in the field of biomaterials. Lignocellulosic biomass can be utilized as a raw material to produce chemicals and it is an important feedstock for renewable fuels in the production of energy. Lignocellulose is composed of mainly three biomacromolecules (cellulose, hemicellulose and lignin). Currently, most of the extracted lignin is either decanted in nearby waters or burned in energy-recovery systems. The reason why lignin is disposed of instead of being further processed is that lignin is immiscible with most polymers and its association behavior is still unknown due to its non-uniform aromatic structure with a number of methoxy, ether and ester groups. To fully utilize lignin, an improved understanding of the interfacial adhesion and interfacial tension is needed. The main motivation for this project is to find new possible ways to make lignin, a lignocellulose component, miscible with most polymers, and to understand how the molecule associates and behaves in the presence of other natural macromolecules. One of the main barriers to utilization of lignin is the absence of significant intermolecular interactions, which cause miscibility problems resulting in phase separation, a generally undesirable characteristic for manufacturing applications, especially in the production of materials. Lignin-based polymeric blends in solution have provided a possible avenue for understanding lignin’s self-assembly behavior in solid and the variations in morphology, physical and thermal properties that come with the addition of secondary and tertiary components, and as well as foreign molecules such reduced graphene oxide (rGO). In the first study, we focused on understanding the association behavior using high and low proportions of cellulose to test how the various functional groups may interact differentially with lignin utilizing ionic liquids as the solvent and water as the coagulation agent. A tertiary component, rGO, was introduced into the lignin-based biocomposite to modify π-π aggregations. The study looks at the effect of rGO as a function material concentration. The biocomposites were investigated using Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC) and Scanning Electron Microscope (SEM) techniques. Results show that π-π aggregates are driven by the π-π interaction of the aromatic groups in lignin. The π-π aggregates undergo disaggregation by the addition of rGO on the blended biocomposite. The results showed that increasing the cellulose content in the cellulose-lignin biocomposite can increase the molecular interactions, causing an increase in the stability of the blended film and an increase in the crystallinity of the cellulose. Profound changes in the morphology was observed upon the addition of rGO. Results demonstrates that the addition of rGO into the biocomposite prevented the… Advisors/Committee Members: Salas-de la Cruz, David (chair), Zhu, Hao (internal member), Fu, Jinglin (internal member).

Subjects/Keywords: Lignin

…30 Chapter 3: Understanding the self-assembly of lignin-based biomaterials in a tertiary… …Figure 1. Lignin monomer structures… …10 Figure 5. ATR-FTIR spectra of material components. (A) Lignin-cellulose… …22 Figure 6. SEM images (A) lignin-cellulose blends without (B) and… …with rgo ................. 25 Figure 7. DSC curves of (A) blended lignin-cellulose…

10 more images…

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APA (6^th Edition):

Al-shahrani, Dalia, 1. (2018). Understanding the self-assembly of lignin-based biomaterials. (Masters Thesis). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/56992/

Chicago Manual of Style (16^th Edition):

Al-shahrani, Dalia, 1990-. “Understanding the self-assembly of lignin-based biomaterials.” 2018. Masters Thesis, Rutgers University. Accessed February 27, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/56992/.

MLA Handbook (7^th Edition):

Al-shahrani, Dalia, 1990-. “Understanding the self-assembly of lignin-based biomaterials.” 2018. Web. 27 Feb 2021.

Vancouver:

Al-shahrani, Dalia 1. Understanding the self-assembly of lignin-based biomaterials. [Internet] [Masters thesis]. Rutgers University; 2018. [cited 2021 Feb 27]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/56992/.

Council of Science Editors:

Al-shahrani, Dalia 1. Understanding the self-assembly of lignin-based biomaterials. [Masters Thesis]. Rutgers University; 2018. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/56992/

Rhodes University

20. Madikane, Mzekelo. Biosulphidogenic hydrolysis of lignin and lignin model compounds.

Degree: Faculty of Science, Biochemistry, Microbiology and Biotechnology, 2002, Rhodes University

URL: http://hdl.handle.net/10962/d1003976

► Lignin degradation under biosulphidogenic conditions has not been extensively reported in the literature. Although aerobic degradation of lignin is well documented, anaerobic biodegradation has focused… (more)

▼ Lignin degradation under biosulphidogenic conditions has not been extensively reported in the literature. Although aerobic degradation of lignin is well documented, anaerobic biodegradation has focused mainly on methanogenic systems with biosulphidogenic systems receiving less attention. Sulphate reducing bacteria are known to generate moderately high levels of both sulphide and alkalinity at room temperatures, and these conditions draw some comparison with the Kraft pulping process. In the Kraft pulping process, lignin is degraded chemically at ±170°C under high sulphide and alkaline conditions and may provide a model for understanding biosulphidogenic lignin degrading activity. The aim of this study was to investigate the biosulphidogenic hydrolysis of lignin within the context of the chemical and biological conditions generated by a mixed sulphate reducing bacteria consortia. Bioreactor studies with a mixed sulphate reducing consortia and pine wood powder (both untreated and depectinated) resulted in the generation of comparable levels of sulphide and alkalinity used in the chemical hydrolysis studies. Aromatic compound yields were between 20 to 50% of the chemical hydrolysis studies. This fluctuation may have been due to the utilization of these aromatic compounds as electron donors by the sulphate reducing consortia as evidenced by the high rate of sulphate reduction in both the untreated and depectinated wood bioreactors. Biodegradation of lignin model compounds was investigated in order to elucidate lignin degradation mechanisms. Both mono-aromatic and dimeric lignin model compounds were used as electron donors and carbon sources for the mixed sulphate reducing consortia. Biodegradation and mass spectrometer analysis of mono-aromatic compounds, ferulic acid and ferulic acid ethyl ester resulted in the production of intermediates such as catechol, cyclohexane carboxylic acid and adipic acid. These intermediates were also observed in the degradation of dimeric ferulic acid. Biodegradation of salicin resulted in the production of salicyl alcohol, ortho-cresol and acetate. Biodegradation of benzylic ether resulted in the production of vanillin and acetate as end products. The results of these studies provide evidence for a biosulphidogenic hydrolysis of lignin, and also the utilisation of lignin-derived aromatic compounds as electron donor sources, by a mixed sulphate reducing consortia.

Subjects/Keywords: Lignin; Lignin – Biodegradation

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APA (6^th Edition):

Madikane, M. (2002). Biosulphidogenic hydrolysis of lignin and lignin model compounds. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1003976

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Madikane, Mzekelo. “Biosulphidogenic hydrolysis of lignin and lignin model compounds.” 2002. Thesis, Rhodes University. Accessed February 27, 2021. http://hdl.handle.net/10962/d1003976.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Madikane, Mzekelo. “Biosulphidogenic hydrolysis of lignin and lignin model compounds.” 2002. Web. 27 Feb 2021.

Vancouver:

Madikane M. Biosulphidogenic hydrolysis of lignin and lignin model compounds. [Internet] [Thesis]. Rhodes University; 2002. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10962/d1003976.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Madikane M. Biosulphidogenic hydrolysis of lignin and lignin model compounds. [Thesis]. Rhodes University; 2002. Available from: http://hdl.handle.net/10962/d1003976

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

21. Musharah, Amani Hassan K. Gold-Catalysed Oxidation of Lignin-Derived Building Blocks.

Degree: 2016, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300446

►

The use of heterogeneous catalysts containing Au nanoparticles supported on TiO2 has been explored for oxidative aqueous phase transformations of sustainable phenolic and benzoic acid… (more)

▼

The use of heterogeneous catalysts containing Au nanoparticles supported on TiO2 has been explored for oxidative aqueous phase transformations of sustainable phenolic and benzoic acid derivatives that can be obtained from lignin. Au/TiO2 catalysts were chosen because of their high activity for ambient pressure oxidations of gas phase species, and because their synthesis is facile and reproducible through a modified deposition-precipitation method. The aerobic oxidation of syringic, vanillic, and ferulic acid as well as of guaiacol, eugenol and anisole was investigated at temperatures up to 70°C under (i) atmospheric air sparging in an open reactor and (ii) at 10 atm air pressure in a closed reactor system. The catalysts were characterised by Transmission Electron Microscopy (TEM), Inductively Coupled Plasma (ICP) Optical Emission Spectroscopy and the reproducibility of their catalytic activity independently monitored by determining their activity for carbon monoxide oxidation in a gas flow reactor.The oxidation of syringic acid, vanillic acid, ferulic acid over Au/TiO2 resulted in the formation of 2,6-dimethoxy benzoquinone, guaiacol, and vanillin, respectively, indicating high selectivity for decarboxylation followed by selective oxidation at the position releasing the leaving group. Guaiacol was found to form tetraguaiacol, while eugenol produced quinone methide. Generally, higher air pressure strongly accelerated the transformations, indicating that availability of oxidants formed from O2 is the rate limiting step in the observed transformations. No transformations took place when O2 was excluded from the systems. Overall, guaiacol was found to react fastest, followed by syringic acid, ferulic acid, then vanillic acid. Anisole was found to be unreactive, even at elevated air pressure. The overall reaction pattern emerging from these studies is that the aerobic oxidation in the presence of Au/TiO2 mimics known biotransformations, for example peroxidase-catalysed oxidations involving H2O2.To assess how the functional groups on the aromatic ring influence reactivity the oxidation of p-hydroxybenzoic acid and of 2,6-dimethoxybenzoic acid was also assessed. It was found that decarboxylation of p-hydroxybenzoic acid proceeds, albeit rather slowly, forming phenol, with no further oxidation to hydroquinone or benzoquinone. Taken together these results indicate that the methoxy moieties influence reactivity through both their inductive and resonance effects: leaving of the carboxylic acid group appears to be enhanced through the inductive effect, while further oxidation at the phenolic site seems to be activated through the resonance effect in ortho-position. In line with this hypothesis, it was recently found that dimethoxybenzoic acid converts fast.

None

Advisors/Committee Members: SCHROEDER, SVEN SLM, CLAYDEN, JONATHAN JP, Schroeder, Sven, Clayden, Jonathan, Turner, Nicholas.

Subjects/Keywords: Lignin; Gold catalyst

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APA (6^th Edition):

Musharah, A. H. K. (2016). Gold-Catalysed Oxidation of Lignin-Derived Building Blocks. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300446

Chicago Manual of Style (16^th Edition):

Musharah, Amani Hassan K. “Gold-Catalysed Oxidation of Lignin-Derived Building Blocks.” 2016. Doctoral Dissertation, University of Manchester. Accessed February 27, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300446.

MLA Handbook (7^th Edition):

Musharah, Amani Hassan K. “Gold-Catalysed Oxidation of Lignin-Derived Building Blocks.” 2016. Web. 27 Feb 2021.

Vancouver:

Musharah AHK. Gold-Catalysed Oxidation of Lignin-Derived Building Blocks. [Internet] [Doctoral dissertation]. University of Manchester; 2016. [cited 2021 Feb 27]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300446.

Council of Science Editors:

Musharah AHK. Gold-Catalysed Oxidation of Lignin-Derived Building Blocks. [Doctoral Dissertation]. University of Manchester; 2016. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:300446

University of Guelph

22. Adams, Ben. Studies on Biobased Materials from Biodegradable Plastics and Lignin.

Degree: Master of Applied Science, School of Engineering, 2015, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8680

► Biodegradable polymers, such as poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and poly(ε-caprolactone) (PCL), have been shown to be effective in solving many end of life issues with certain current… (more)

Subjects/Keywords: Bioplastics; Lignin; Bioeconomy

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APA (6^th Edition):

Adams, B. (2015). Studies on Biobased Materials from Biodegradable Plastics and Lignin. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8680

Chicago Manual of Style (16^th Edition):

Adams, Ben. “Studies on Biobased Materials from Biodegradable Plastics and Lignin.” 2015. Masters Thesis, University of Guelph. Accessed February 27, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8680.

MLA Handbook (7^th Edition):

Adams, Ben. “Studies on Biobased Materials from Biodegradable Plastics and Lignin.” 2015. Web. 27 Feb 2021.

Vancouver:

Adams B. Studies on Biobased Materials from Biodegradable Plastics and Lignin. [Internet] [Masters thesis]. University of Guelph; 2015. [cited 2021 Feb 27]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8680.

Council of Science Editors:

Adams B. Studies on Biobased Materials from Biodegradable Plastics and Lignin. [Masters Thesis]. University of Guelph; 2015. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/8680

University of Ottawa

23. Chen, Wei-Ching. Selective Oxidation of Lignin Models and Extracts with Earth-Abundant Transition Metals and Hypervalent Iodine .

Degree: 2015, University of Ottawa

URL: http://hdl.handle.net/10393/32181

► As a significant component of lignocellulosic biomass, lignin represents a potential source of value-added aromatic chemicals. In this thesis, catalytic systems with earth-abundant metal catalysts… (more)

Subjects/Keywords: Lignin; Oxidation; Depolymerization

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APA (6^th Edition):

Chen, W. (2015). Selective Oxidation of Lignin Models and Extracts with Earth-Abundant Transition Metals and Hypervalent Iodine . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/32181

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chen, Wei-Ching. “Selective Oxidation of Lignin Models and Extracts with Earth-Abundant Transition Metals and Hypervalent Iodine .” 2015. Thesis, University of Ottawa. Accessed February 27, 2021. http://hdl.handle.net/10393/32181.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chen, Wei-Ching. “Selective Oxidation of Lignin Models and Extracts with Earth-Abundant Transition Metals and Hypervalent Iodine .” 2015. Web. 27 Feb 2021.

Vancouver:

Chen W. Selective Oxidation of Lignin Models and Extracts with Earth-Abundant Transition Metals and Hypervalent Iodine . [Internet] [Thesis]. University of Ottawa; 2015. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10393/32181.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen W. Selective Oxidation of Lignin Models and Extracts with Earth-Abundant Transition Metals and Hypervalent Iodine . [Thesis]. University of Ottawa; 2015. Available from: http://hdl.handle.net/10393/32181

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

24. Heap, Lucy. Investigating the role of laccase and laccase mediator systems to improve the saccharification of biomass for bioethanol production.

Degree: PhD, 2014, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/investigating-the-role-of-laccase-and-laccase-mediator-systems-to-improve-the-saccharification-of-biomass-for-bioethanol-production(8040101c-9d6f-4c47-99a4-93f9a066145f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632232

► As global energy demands increase, there is a requirement to decrease our dependency on fossil fuels due to their finite supply and negative environmental impacts.… (more)

▼ As global energy demands increase, there is a requirement to decrease our dependency on fossil fuels due to their finite supply and negative environmental impacts. Alternative sources of energy are required that offer sustainability, reduced cost and environmental benefits. Second generation biofuels remove the ‘food vs fuel’ drawback of the first generation. They utilise lignocellulosic biomass, providing cheap and abundant starting materials for energy production. The major biotechnological challenge associated with lignocellulosic processing is the natural recalcitrance of the substrate to sugar conversion (saccharification). This recalcitrance is largely associated with lignin, an aromatic heteropolymer that encases cellulose. To improve bioethanol yields, there is a need for cost effective and environmentally friendly pretreatment methods that can remove lignin. An enzymatic pretreatment strategy was investigated using laccase from the fungus Trametes versicolor (TvL). Expansion of the laccase substrate range towards non-phenolic substrates was explored by screening of a panel of synthetic and naturally derived phenolic compounds as potential redox mediators with laccase. Both groups enabled decolourisation of the recalcitrant dye (RB-5) to varying degrees, which laccase alone was unable to achieve. In the case veratryl alcohol, a lignin model substrate, synthetic compounds 1-HBT, ABTS and violuric acid proved effective laccase mediators. On this basis, TvL with 1-HBT was selected as the most successful laccase mediator system (LMS) and was further explored as a biomass pretreatment method. The effects of LMS treatments towards the saccharification of acid hydrolysed wheat straw were extensively investigated. Optimisation revealed that when both TvL and a TvL LMS of synthetic origin (1-HBT, violuric acid) were applied, saccharification was improved. The observed increase in glucose release was only detected when a second lignin removing technique was applied in succession. Both alkaline-peroxide and organosolv extractions were successfully used to demonstrate the role of laccase/LMS in saccharification improvement, with improvements reaching up to 44.6%. The effect was further demonstrated with additional substrates (corn and sorghum stover) and additional laccases (Pleurotus ostreatus, Agaricus bisporus and Rhus vernicifera). Further studies using β-O-4 structures, py-GC/MS and FTIR analyses provide further information on the structural actions of an LMS towards lignin, including strong evidence for Cα-Cβ cleavage and Cα hydroxyl oxidation mechanisms.

Subjects/Keywords: 572; Lignin; Laccase

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Heap, L. (2014). Investigating the role of laccase and laccase mediator systems to improve the saccharification of biomass for bioethanol production. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/investigating-the-role-of-laccase-and-laccase-mediator-systems-to-improve-the-saccharification-of-biomass-for-bioethanol-production(8040101c-9d6f-4c47-99a4-93f9a066145f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632232

Chicago Manual of Style (16^th Edition):

Heap, Lucy. “Investigating the role of laccase and laccase mediator systems to improve the saccharification of biomass for bioethanol production.” 2014. Doctoral Dissertation, University of Manchester. Accessed February 27, 2021. https://www.research.manchester.ac.uk/portal/en/theses/investigating-the-role-of-laccase-and-laccase-mediator-systems-to-improve-the-saccharification-of-biomass-for-bioethanol-production(8040101c-9d6f-4c47-99a4-93f9a066145f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632232.

MLA Handbook (7^th Edition):

Heap, Lucy. “Investigating the role of laccase and laccase mediator systems to improve the saccharification of biomass for bioethanol production.” 2014. Web. 27 Feb 2021.

Vancouver:

Heap L. Investigating the role of laccase and laccase mediator systems to improve the saccharification of biomass for bioethanol production. [Internet] [Doctoral dissertation]. University of Manchester; 2014. [cited 2021 Feb 27]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/investigating-the-role-of-laccase-and-laccase-mediator-systems-to-improve-the-saccharification-of-biomass-for-bioethanol-production(8040101c-9d6f-4c47-99a4-93f9a066145f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632232.

Council of Science Editors:

Heap L. Investigating the role of laccase and laccase mediator systems to improve the saccharification of biomass for bioethanol production. [Doctoral Dissertation]. University of Manchester; 2014. Available from: https://www.research.manchester.ac.uk/portal/en/theses/investigating-the-role-of-laccase-and-laccase-mediator-systems-to-improve-the-saccharification-of-biomass-for-bioethanol-production(8040101c-9d6f-4c47-99a4-93f9a066145f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632232

Georgia Tech

25. Faraji Mosalman, Mozhdeh Sadat. From experimental observations to a functional model of the lignin pathway: Computational modeling reveals new insights.

Degree: PhD, Mechanical Engineering, 2018, Georgia Tech

URL: http://hdl.handle.net/1853/59881

► Lignin is a natural polymer that is interwoven with cellulose and hemicellulose within plant cell walls. Due to this molecular arrangement, lignin is a major… (more)

Subjects/Keywords: Lignin; Computational modeling

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APA (6^th Edition):

Faraji Mosalman, M. S. (2018). From experimental observations to a functional model of the lignin pathway: Computational modeling reveals new insights. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/59881

Chicago Manual of Style (16^th Edition):

Faraji Mosalman, Mozhdeh Sadat. “From experimental observations to a functional model of the lignin pathway: Computational modeling reveals new insights.” 2018. Doctoral Dissertation, Georgia Tech. Accessed February 27, 2021. http://hdl.handle.net/1853/59881.

MLA Handbook (7^th Edition):

Faraji Mosalman, Mozhdeh Sadat. “From experimental observations to a functional model of the lignin pathway: Computational modeling reveals new insights.” 2018. Web. 27 Feb 2021.

Vancouver:

Faraji Mosalman MS. From experimental observations to a functional model of the lignin pathway: Computational modeling reveals new insights. [Internet] [Doctoral dissertation]. Georgia Tech; 2018. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1853/59881.

Council of Science Editors:

Faraji Mosalman MS. From experimental observations to a functional model of the lignin pathway: Computational modeling reveals new insights. [Doctoral Dissertation]. Georgia Tech; 2018. Available from: http://hdl.handle.net/1853/59881

Penn State University

26. Hill Bembenic, Meredith A. The Chemistry of Subcritical Water Reactions of a Hardwood Derived Lignin and Lignin Model Compounds with Nitrogen, Hydrogen, Carbon Monoxide and Carbon Dioxide .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12418

► Biofuels, like cellulosic ethanol, may only be cost effective if the lignin byproduct is upgraded to value-added products. However, lignin’s inherent aromatic structure and… (more)

Subjects/Keywords: lignin ether cleavage; lignin model compounds; lignin depolymerization; cellulosic ethanol; subcritical water reactions with lignin; high temperature water reactions with lignin

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APA (6^th Edition):

Hill Bembenic, M. A. (2011). The Chemistry of Subcritical Water Reactions of a Hardwood Derived Lignin and Lignin Model Compounds with Nitrogen, Hydrogen, Carbon Monoxide and Carbon Dioxide . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12418

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hill Bembenic, Meredith A. “The Chemistry of Subcritical Water Reactions of a Hardwood Derived Lignin and Lignin Model Compounds with Nitrogen, Hydrogen, Carbon Monoxide and Carbon Dioxide .” 2011. Thesis, Penn State University. Accessed February 27, 2021. https://submit-etda.libraries.psu.edu/catalog/12418.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hill Bembenic, Meredith A. “The Chemistry of Subcritical Water Reactions of a Hardwood Derived Lignin and Lignin Model Compounds with Nitrogen, Hydrogen, Carbon Monoxide and Carbon Dioxide .” 2011. Web. 27 Feb 2021.

Vancouver:

Hill Bembenic MA. The Chemistry of Subcritical Water Reactions of a Hardwood Derived Lignin and Lignin Model Compounds with Nitrogen, Hydrogen, Carbon Monoxide and Carbon Dioxide . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Feb 27]. Available from: https://submit-etda.libraries.psu.edu/catalog/12418.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hill Bembenic MA. The Chemistry of Subcritical Water Reactions of a Hardwood Derived Lignin and Lignin Model Compounds with Nitrogen, Hydrogen, Carbon Monoxide and Carbon Dioxide . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12418

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Ruhr Universität Bochum

27. Wang, Xingyu. Valorization of lignin and bio-oil by catalytic hydrogenation with Ni catalyst.

Degree: 2013, Ruhr Universität Bochum

URL: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-38972

► Lignin und daraus hergestelltes Bio-Öl sind attraktive, erneuerbare Alternativen zu fossilen Rohstoffen. In der vorliegenden Arbeit wurden verschiedene Routen, darunter Hydrogenolyse, Hydrodeoxygenierung, Transferhydrogenierung und Dehydroxylierung,… (more)

Subjects/Keywords: Lignin; Öl; Katalysator; Hydrogenolyse; Biomasse

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, X. (2013). Valorization of lignin and bio-oil by catalytic hydrogenation with Ni catalyst. (Thesis). Ruhr Universität Bochum. Retrieved from http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-38972

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Xingyu. “Valorization of lignin and bio-oil by catalytic hydrogenation with Ni catalyst.” 2013. Thesis, Ruhr Universität Bochum. Accessed February 27, 2021. http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-38972.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Xingyu. “Valorization of lignin and bio-oil by catalytic hydrogenation with Ni catalyst.” 2013. Web. 27 Feb 2021.

Vancouver:

Wang X. Valorization of lignin and bio-oil by catalytic hydrogenation with Ni catalyst. [Internet] [Thesis]. Ruhr Universität Bochum; 2013. [cited 2021 Feb 27]. Available from: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-38972.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang X. Valorization of lignin and bio-oil by catalytic hydrogenation with Ni catalyst. [Thesis]. Ruhr Universität Bochum; 2013. Available from: http://nbn-resolving.de/urn/resolver.pl?urn=urn:nbn:de:hbz:294-38972

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

28. Xie, Shangxian. Biological and Chemical Design for Lignin Conversion.

Degree: PhD, Plant Pathology, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/158071

► The efficient utilization of lignin for fungible fuels and products represents one of the most imminent challenges in modern biorefinery. My research thesis has mainly… (more)

▼ The efficient utilization of lignin for fungible fuels and products represents one of the most imminent challenges in modern biorefinery. My research thesis has mainly focused on developing and optimizing the lignin-to-lipid conversion route. Advanced ^31P nuclear magnetic resonance (NMR) lignin characterization technology, laccase based lignin pretreatment technology, proteomics and synthetic biology tools were applied to this study. First, the study demonstrated that the enzymes and microbes synergized to degrade different functional groups of lignin to promote the bioconversion. The Rhodococcus opacus cell growth increased exponentially in response to the level of laccase treatment, indicating the synergy between laccase and bacterial cells in lignin degradation. NMR analysis suggested that laccase, R. opacus cell and Fenton reaction reagents promoted the degradation of different types of lignin functional groups, elucidating the chemical basis for the synergistic effects. The cell-laccase fermentation led to a 17-fold increase of lipid production. Second, the study showed that enhanced electron transfer via electron mediators can promote the redox reaction to catalyze the lignin bioconversion by laccase. NMR analysis revealed that an efficient enzyme-mediator system can promote the cleavage of most intramolecular and intermolecular cross-links including the condensed chemical linkages, leading to the degradation of lignin to a large extent. The R. opacus PD630 growth was increased by 10⁶ fold and the simple batch fermentation could achieve lipid titer at more than 1 g/L. Third, through systems biology-guided biodesign, I have optimized multiple steps of lignin degradation towards to lipid production. An efficient laccase secretion system was established in PD630 for lignin depolymerization through different molecular levels including transcription, translation, signal peptide secretion efficiency and transporters. Moreover, lipid biosynthesis pathway of R. opacus PD630 was optimized based on the proteomics analysis, which led to significantly increased lipid accumulation. The two modules of lignin depolymerization and lipid biosynthesis were then integrated for efficient lignin conversion into lipid. In summary, these studies enabled more efficient conversion of lignin and biorefinery waste to fungible products. The fundamental understanding of chemical and biological processes in lignin conversion can be exploited in different ways to enable various biorefinery product streams from biorefinery waste streams. Advisors/Committee Members: Yuan, Joshua S. (advisor), Gross, Dennis (committee member), Shan, Libo (committee member), Dai, Susie Y. (committee member).

Subjects/Keywords: Lignin bioconversion; Laccase; Lipid; Rhodococcus

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Xie, S. (2016). Biological and Chemical Design for Lignin Conversion. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/158071

Chicago Manual of Style (16^th Edition):

Xie, Shangxian. “Biological and Chemical Design for Lignin Conversion.” 2016. Doctoral Dissertation, Texas A&M University. Accessed February 27, 2021. http://hdl.handle.net/1969.1/158071.

MLA Handbook (7^th Edition):

Xie, Shangxian. “Biological and Chemical Design for Lignin Conversion.” 2016. Web. 27 Feb 2021.

Vancouver:

Xie S. Biological and Chemical Design for Lignin Conversion. [Internet] [Doctoral dissertation]. Texas A&M University; 2016. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1969.1/158071.

Council of Science Editors:

Xie S. Biological and Chemical Design for Lignin Conversion. [Doctoral Dissertation]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/158071

Penn State University

29. Frantz, Curtis Wendelin. Characterization of pyrolyzed lignin chars for use in a novel foundry fuel source.

Degree: 2013, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/17641

► Briquettes containing 86-92% anthracite fines, 2.3-8.6% lignin, 4.5% silicon metal powder, and 0.9% hydrolyzed collagen (gelatin) by mass have been investigated as a promising coke… (more)

▼ Briquettes containing 86-92% anthracite fines, 2.3-8.6% lignin, 4.5% silicon metal powder, and 0.9% hydrolyzed collagen (gelatin) by mass have been investigated as a promising coke replacement in the foundry industry. The inclusion of lignin is important; we hypothesize it thermally fuses, providing the necessary strength for the briquettes to maintain their structural integrity throughout the extremely harsh pyrolitic conditions of the foundry’s cupola furnace. In order to mimic the cupola environment, eucalyptus hardwood lignin has been pyrolyzed at a series of temperatures ranging from 300°C to 800°C for either 5, 10, or 20 minutes. Following pyrolysis the lignin samples were subjected to nuclear magnetic resonance spectroscopy (NMR), pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), and Raman spectroscopy to gain insight into either the reaction mechanism or the structure of the resultant lignin char. The results of these techniques indicate that the content of aromatic carbon within the lignin increases from 54.1% to 95.6% between the control (un-pyrolyzed) lignin and the lignin pyrolyzed at 500°C for 20 minutes. The average distance between aromatic carbons and their nearest hydrogen atom also increased, indicating the size of aromatic domains is increasing. The XRD data indicate that while the lignin has not become ordered and aromatic enough to be considered “graphitic”, the order and crystallinity is increasing and was trending in the direction of graphite. The diffraction pattern of the 800°C sample roughly resembled the patterns of soots and glassy carbon. Similarly, the Raman spectra of samples pyrolyzed from 400°C to 800°C indicate that the lignin was becoming more ordered; the disordered (D) and graphitic (G) peaks became more defined within samples pyrolyzed at high temperature. The samples did not reach a high level of graphitization but contained ordered aromatic regimes. Advisors/Committee Members: Nicole Robitaille Brown, Thesis Advisor/Co-Advisor.

Subjects/Keywords: lignin; pyrolysis; NMR; char

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APA (6^th Edition):

Frantz, C. W. (2013). Characterization of pyrolyzed lignin chars for use in a novel foundry fuel source. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/17641

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Frantz, Curtis Wendelin. “Characterization of pyrolyzed lignin chars for use in a novel foundry fuel source.” 2013. Thesis, Penn State University. Accessed February 27, 2021. https://submit-etda.libraries.psu.edu/catalog/17641.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Frantz, Curtis Wendelin. “Characterization of pyrolyzed lignin chars for use in a novel foundry fuel source.” 2013. Web. 27 Feb 2021.

Vancouver:

Frantz CW. Characterization of pyrolyzed lignin chars for use in a novel foundry fuel source. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Feb 27]. Available from: https://submit-etda.libraries.psu.edu/catalog/17641.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Frantz CW. Characterization of pyrolyzed lignin chars for use in a novel foundry fuel source. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/17641

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of North Texas

30. Harkleroad, Aaron Djuanell. Exploring Caffeyl-Lignin Biosynthesis in Cleome hassleriana and Polymerization of Caffeyl Alcohol in Arabidopsis thaliana.

Degree: 2019, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc1609057/

► C-lignin (caffeyl-lignin) is a novel linear lignin polymer found in the seed coats of several non-crop plants, notably Vanilla planifolia (Vanilla), Jatropha Curcas (Jatropha), and… (more)

▼ C-lignin (caffeyl-lignin) is a novel linear lignin polymer found in the seed coats of several non-crop plants, notably Vanilla planifolia (Vanilla), Jatropha Curcas (Jatropha), and Cleome hassleriana (Cleome). C-lignin has several advantages over normal G/S-lignin, found in the majority of lignocellulosic biomass, for valorization in the context of bioprocessing: less cross-linking to cell wall polysaccharides (less recalcitrant biomass), ordered linkages between monomers (homogeneous polymer), and no branching points (linear polymer). These properties make C-lignin an attractive replacement for native lignin in lignocellulosic biomass crops. The seed coats of Cleome hassleriana (Cleome) synthesize G-lignin during early seed maturation, then switch to synthesis of C-lignin during late maturation. This switch to C-lignin in Cleome seed coats is accompanied by loss of caffeoyl-CoA 3-O-methyltransferase (CCoAOMT) and caffeic acid 3-O-methyltransferase (COMT) activities, along with changes in transcript abundance of several lignin related genes. The focus of this research thesis is to understand the biochemical changes leading to C-lignin deposition in Cleome hassleriana seed coats, and to explore the ability of Arabidopsis thaliana seedlings to polymerize caffeyl alcohol to C-lignin. In this thesis, candidate transcripts were implicated in C-lignin biosynthesis by differential gene expression analysis of transcripts in seed coat tissues at 8-18 days after pollination (DAP) and in non-seed coat tissues. Three candidate genes were selected for recombinant expression and their in vitro kinetic properties were measured with potential substrates. Of the three candidates, a cinnamyl alcohol dehydrogenase (ChCAD5) was found to have high transcript levels during C-lignin formation and have a novel preference for converting caffealdehyde to caffeyl alcohol, the precursor of C-lignin. To determine if accumulation of caffeyl alcohol is sufficient for polymerization of C-lignin, Arabidopsis seedlings grown in a xylem induction system were supplied caffeyl alcohol. Polymerization of caffeyl alcohol was not found to occur in this Arabidopsis system, suggesting the need for a C-lignin specific polymerization mechanism. Advisors/Committee Members: Dixon, Richard A., Ayre, Brian G., Azad, Rajeev K..

Subjects/Keywords: Lignin; Caffeyl; Cleome; seed coat

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Harkleroad, A. D. (2019). Exploring Caffeyl-Lignin Biosynthesis in Cleome hassleriana and Polymerization of Caffeyl Alcohol in Arabidopsis thaliana. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc1609057/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Harkleroad, Aaron Djuanell. “Exploring Caffeyl-Lignin Biosynthesis in Cleome hassleriana and Polymerization of Caffeyl Alcohol in Arabidopsis thaliana.” 2019. Thesis, University of North Texas. Accessed February 27, 2021. https://digital.library.unt.edu/ark:/67531/metadc1609057/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Harkleroad, Aaron Djuanell. “Exploring Caffeyl-Lignin Biosynthesis in Cleome hassleriana and Polymerization of Caffeyl Alcohol in Arabidopsis thaliana.” 2019. Web. 27 Feb 2021.

Vancouver:

Harkleroad AD. Exploring Caffeyl-Lignin Biosynthesis in Cleome hassleriana and Polymerization of Caffeyl Alcohol in Arabidopsis thaliana. [Internet] [Thesis]. University of North Texas; 2019. [cited 2021 Feb 27]. Available from: https://digital.library.unt.edu/ark:/67531/metadc1609057/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Harkleroad AD. Exploring Caffeyl-Lignin Biosynthesis in Cleome hassleriana and Polymerization of Caffeyl Alcohol in Arabidopsis thaliana. [Thesis]. University of North Texas; 2019. Available from: https://digital.library.unt.edu/ark:/67531/metadc1609057/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations