Abstract
The nutritive quality of cooked, unfermented (UOB) and fermented (FOB) African oil bean seeds was evaluated by chemical analysis and animal assay. The seeds were high in energy with a slight difference between the gross energy values of UOB and FOB. The estimated protein energy ratio (P e%) and net dietary protein calorie percent (NDpCal %), showed that the two processed forms of the seed have the potential to satisfy human protein and energy requirements. Rats fed diets containing UOB and FOB as the sole source of protein lost weight with a low feed intake resulting in negative PER values. These values were significantly ( P < 0.05) inferior to the PER for the casein control. The feed digestibility was 92.6% for UOB and 87.8% for FOB. The protein digestibilities of both test samples were low with that of UOB (80.0%) being significantly ( P < 0.05) different from that of FOB (48.0%). Between the first and second week of the animal experiments, a 20% and 10% mortality was recorded for rats on diets containing UOB and FOB, respectively.
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