Abstract 207

Ikurior,-SA; Fetuga,-BLA

National Veterinary Research Inst., Vom, Nigeria.

Food-Chemistry. 1987, 26: 4, 307-314; 13 ref.

Three Nigerian commercial cottonseed varieties, Samaru 71, Samaru 72 and Samaru 77, and composite cottonseed from 3 locations, Funtua, Mallumfashi (CSM) and Kano, were assayed for proximate, mineral and amino acid composition. Crude protein was on average 37.4% for the varieties and 36.2% for the composite seed. The oil content ranged from 33.6 to 35.1% for the varieties, and was on average 32.7% in the composite seed. Crude fibre, ash and nitrogen-free extracts did not vary between or within seed type. The mineral values were relatively high, and phosphorus was the most abundant, average 1.34 and 1.28% in the varieties and composite seed, respectively. The mineral values were generally lowest for Samaru 72 and CSM within their respective seed categories. Amino acid values for both cottonseed types were higher than, or comparable to, those reported by other workers for cottonseed elsewhere. Amino acid values were, in general, lower in composite seed than in the seed varieties. Varietal and locational factors seemed to influence the chemical components in cottonseed.