Proximate composition and fatty acid analysis of Lablab purpureus L. legume seed: implicates to both protein and essential fatty acid supplementationReport as inadecuate

Proximate composition and fatty acid analysis of Lablab purpureus L. legume seed: implicates to both protein and essential fatty acid supplementation - Download this document for free, or read online. Document in PDF available to download.


, 5:1899

Biomedical and Life Sciences


The high mortality rate in Bangladesh is related to poverty, which results in protein malnutrition, essential fatty acid deficiency and lacks in adequate vitamins, minerals and calorie. Exploring new food items with improved dietary nutrition factors may, therefore, help to decrease the mortality rate in the poor countries like Bangladesh. Accordingly, the present study was a proximate composition and fatty acid analysis of L. purpureus seed—a legume seed which is given no careful attention locally, though it might be a good source of valuable nutrition factors for both animals and humans. The purpose of the study was, therefore, to generate awareness that L. purpureus could also act as a good source of food components essential for good health. Proximate analysis revealed that the seed powder contained 8.47 ± 0.52% moisture; 3.50 ± 0.0.07% ash; 1.02 ± 0.06% total fat; 23.95 ± 0.15% total protein; 1.21 ± 0.16% total dietary fiber; 61.86 ± 0.70% total carbohydrate and 352.4 ± 2.66 kcal-100 g energy. Phytic acid content % was 1.014 ± 0.048. Major fatty acid composition %: the essential fatty acid linoleic acid C18:2, ω-6 was 9.50 ± 0.68, while the linolenic acid C18:3, ω-3 was 1.95 ± 0.18. Palmitic acid C16:0, stearic acid C18:0 and oleic acid C18:1 were, respectively, 2.96 ± 0.19, 0.77 ± 0.04 and 1.10 ± 0.06. Lignoceric acid C24:0 was 0.11 ± 0.007%. Monounsaturated palmitoleic acid 0.006 ± 0.0, docosapentaenoic acid DPA, C22:5, ω-3 and nervonic acid 0.002 ± 0.0 were present in trace amounts. Arachidonic acid AA, C20:4, ω-6, eicosapentaenoic acid C20:5, ω-3, and docosahexaenoic acid C22:6, ω-3 were not detected. The fatty acid profile, thus, suggests that essential omega-6 fatty acid linoleic acid C18:3, ω-6 and omega-3 linolenic acid C18:3, ω-3 were the major polyunsaturated fatty acids PUFA present in L. purpureus seed. In addition, the seed contained high amount of proteins. Finally, these results suggest that L. purpureus seed could be used as a good source of quality food components, including protein and essential fatty acids.

KeywordsL. purpureus Proximate composition Omega-3 and omega-6 polyunsaturated fatty acid  Download fulltext PDF

Author: Shahdat Hossain - Rashed Ahmed - Sujan Bhowmick - Abdullah Al Mamun - Michio Hashimoto


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