Nutritional value of some leguminous beans (soybeans, cowpeas, lima beans and pigeon peas) commonly consumed in Côte D'ivoire

The present study was carried out on soybeans (Glycine max), cowpeas (Vignaunguiculata), lima beans (Phaseoluslunatus) and pigeon peas (Cajanuscajan) in order to promote their consumption in Africa by determining their nutritional values. For this purpose, a physico-chemical analysis of each whish was performed reveal that the powders of soyabeans, cowpeas, lima beans and pigeon peas are richer in proteins (pigeon peas : 15.98 ± 0.23% and soyabeans : 30.77 ± 0.83%) and the fibers (lima beans : 20 , 62 ± 0.21% and soyabeans : 29.45 ± 0.07%). They have low water contents (cowpeas: 7.65 ± 0.18% and lima beans: 10.93 ± 0.03%). The ash content varied from (cowpeas: 3.86 ± 0.06%. Tosoyabeans: 5.23 ± 0.06%). Regarding the lipid contents of the seeds, they were between (lima beans: 1.16 ± 0.15% and soyabeans: 19, 86 ± 0.15%) while the carbohydrate content is between soyabeans: 32.90 ± 2.11% and pigeon peas: 55.59 ± 0.08%). The energy value varied between cowpeas 228.41 ± 1.81 andsoyabeans: 358.85 ± 5.07 Kcal per 100 g of powders. As for the phytochemical composition, the content of phenolic compounds is the highest and it varies from (lima beans: 29.76 ± 0.24 mg / 100 g of DM tosoyabeans: 114.26 ± 0.09 mg / 100 g of DM). Likewose the values of the antinutritional factors are respectively (pigeon peas: 7.51 ± 0.48 mg / 100 g of DM and soyabeans: 17.25 ± 1.15 mg / 100 g of DM) and (pigeon peas: 53.18 ± 1.18 mg / 100g and lima beans: 84.52 ± 1.08 mg / 100g DM) All leguminous beans are rich in potassium (pigeon peas: 23.57 ± 0.57% and cowpeas : 27.78 ± 0.89%) and phosphorus (lima beans: 5.07 ± 0.06% and soyabeans: 8.63 ± 0.28 %). The results show that all the leguminous beans studied represent a potential source of lipids and proteins in the diet of Ivorians.