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    Effect of Some Processing Methods on Nutrient Content and Anti-Nutritional Factors of a Variety of Dolichos Lablab (Lablab Purpureus L.) Beans Grown in Kenya

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    Date
    2019
    Author
    Kilonzi, Sheila M.
    Makokha, Anselimo O.
    Kenji, Glaston M.
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    Abstract
    This study aimed to determine the effect of different processing methods on the proximate composition and anti-nutritional factors of Dolichos lablab beans (Lablab purpureus) of Kenya. The seeds of KAT/DL-2 variety,sourced from Kenya Agricultural Livestock and Research Organisation, Katumani Dryland Research Station were sorted, then subjected to different processing methods (soaking, cooking and germination). The samples were analysed for proximate composition, tannins, phytates and trypsin inhibitory activity. The results showed a significant increase (2.0%) in crude protein content for germinated lablab beans while carbohydrates content was high in cooked samples. The variety KAT/DL-2 had high levels of phytates; 723.6 mg/100g and tannins 330.3mg/100g and trypsin inhibitor activity 1.3mg/100g. Cooking achieved the highest reduction of anti-nutrients with 88% reduction in TIU. The results revealed that the anti-nutrients in lablab beans can be reduced using different methods of processing. However, there is need to investigate the effect of combined methods on the nutrients and anti-nutrients.
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    https://karuspace.karu.ac.ke/handle/20.500.12092/2421
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