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《Journal of The Fourth Military Medical University》 1990-03
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Nutritional Evaluation of Amino Acid Complex Taken from Silkworm Cocoons

ZHANG Ying-Yu LI Rui-Zhen and CHEN Yao-Min Department of Militar Hygiene  
The amino add composition of silkwonn cocoon anrino acid complex (SCAAC),the hydrolysate derired from silkworm cocoon protein, was analyzed and its nutritional evaluation measured by rat growth test according to AOAC. Essential amino adds (EAA) accounted for 61.2% of the total amino acid in SCAAC The amounts of the total EAA except threonine and lysine in SCAAC were all greater than those of a whole egg protein. The chemical score was 59, the EAA index 80, the biological value 76, and the nutritional index 50 for SCAAC. The results of the rat growth test showed that SCAAC had the effect of promoting of growth in young rats and the body weight gain curve showed a vertical straight line. The protein efficiency ratio(PER) in the SCAAC group was 245±0.28. There was no significant difference (p0.05) when compared between experimental and control groups . There was no significant statistical difference (p0.05) in the total serum protein , hemoglobin and immunological function index . The results suggest that SCAAC has a high nutritional value and is a good nitrogen resource which can be absorbed and ultilized without digestion.
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