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Kwame Nkrumah University of Science and Technology

1. Ofosu, Isaac Williams. Consumption Patterns, Protein Quality and Hazards of “NULs” Utilization.

Degree: 2018, Kwame Nkrumah University of Science and Technology

Many people consume large quantities of plant-based products, including neglected and underutilized legumes (NULs), because of their availability or affordability. This makes NULs a critical food security resource. However, NULs are known to contain toxins such as lectins (glycoproteins) which persistently resist heat inactivation, making them a potentially serious health hazard. In order to promote their continuous and sustainable utilization, consumption profile, safety and nutritional quality by way of essential amino acids need to be investigated. Furthermore, suitable ways of attenuating the possible risks of lectins in NULs need to be investigated. A survey was carried out aimed at finding the processing and consumption patterns of five selected NULs; Vigna subterranea, Cajanus cajan, Mucuna pruriens, Phaseolus lunatus and Canavalia ensiformis focusing on consumer characteristics such as: age, house hold numbers, educational levels, marital status and occupation. Also considered were, the familiarity of NULs, perception of hazards and the risks, in terms of exposure assessment and exposure frequency of dishes consumed per body weight of consumers. Time-heat inactivation of the lectins in NULs flours, as well as their NULs’ model dishes were studied, from which risk was evaluated, using the hazard-based approach. Five different NULs protein extracts were profiled to ascertain the essential amino acids, and the quality evaluated by matching them against the standard FAO/WHO dietary indispensable amino acids for three age groups; infants, children and adults. −Radiated starches prepared using radiation doses from 3 to 42 kGy were composited at 10% composition with defatted NULs flours, with respect to quantities of native starches present in NULs. The composites were agitated in an extruder which operated within intrinsic temperature ranging from 2 to 12 °C. Residual lectins from the extrudates were quantified by ELISA analysis. The statistical analysis of the collected survey data involved the use of Palisade @Risk software to fit each measured parameter to the most adequate probabilistic distribution, based on its Akaike information criterion. Subsequently, the central tendency characteristics of the measured parameters, together with their variations, uncertainties and distribution functions were recorded. In the survey of the consumption of NULs, it was observed that, majority of the respondents who were over 40 years (67.6%) were familiar (59.4%) with NULs and consumed NULs dishes. The most popular dishes were prepared from Vigna subterranea (15.9%) and Phaseolus lunatus (14.95%). The majority of consumers (66%), perceived the presence of hazards in NULs, citing pesticide residues (58.7%), but no intrinsic hazards as threat. However, a few (16.6%) considered the interaction between pesticide residues and food additives as dangerous. Majority (66.1%) regarded NULs dishes as safe, while at the same time complained of stomach discomfort (97.2%) after consumption. In spite of these observations, they would still…

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APA (6th Edition):

Ofosu, I. W. (2018). Consumption Patterns, Protein Quality and Hazards of “NULs” Utilization. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11473

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

Chicago Manual of Style (16th Edition):

Ofosu, Isaac Williams. “Consumption Patterns, Protein Quality and Hazards of “NULs” Utilization.” 2018. Thesis, Kwame Nkrumah University of Science and Technology. Accessed November 19, 2018. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11473.

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

MLA Handbook (7th Edition):

Ofosu, Isaac Williams. “Consumption Patterns, Protein Quality and Hazards of “NULs” Utilization.” 2018. Web. 19 Nov 2018.

Vancouver:

Ofosu IW. Consumption Patterns, Protein Quality and Hazards of “NULs” Utilization. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2018. [cited 2018 Nov 19]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11473.

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

Council of Science Editors:

Ofosu IW. Consumption Patterns, Protein Quality and Hazards of “NULs” Utilization. [Thesis]. Kwame Nkrumah University of Science and Technology; 2018. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11473

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

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