Proximate and antinutrient composition of selected West African Bambara groundnut (Vigna subterranea (L.) Verdc.) accessions


Underutilized legumes have gained recent prominence among various stakeholders globally, but
particularly in the sub-Saharan African region. Among these is the Bambara groundnut (Vigna
subterranean (L.) Verdc); cultivated in several communities in Africa and Asia. In this study, five West
African accessions obtained from the genebank at the International Institute of Tropical Agriculture
(IITA), Ibadan, Nigeria were compared for proximate and antinutrients. Analysis of variance showed
statistically significant results (Significant level at P < 0.0001) for carbohydrates, protein, fat, crude,
moisture, ash and crude fibre. The antinutrients analyzed (%) are composed of flavonoids, alkaloids and
saponin. The flavonoids ranged from 0.009 % to 0.005% in TVSU-1636 and TVSU-1649 respectively.
The alkaloid varies from 0.182% in TVSU-1649 to 0.248% in TVSU-1636 while the saponin content
varies from 0.333% in TVSU-1649 to 0.387% in TVSU-1636. The outcome of the study indicated
variations in the trait measured and that the accessions could be useful as legume supplements in
animal and human foods. Bambara groundnut may also support low-cost protein and other beneficial
nutrients required in sub-Saharan Africa.

Keywords: Bambara groundnut, nutrients, antinutrients, food and income security, sub-Saharan