食品科学 ›› 2001, Vol. 22 ›› Issue (8): 64-66.

• 工艺技术 • 上一篇    下一篇

桑蚕蛹蛋白质营养价值的评价

 杨雪锋,  黄连珍,  郝丽萍   

  1. 同济医科大学公共卫生学院营养与食品卫生教研室
  • 出版日期:2001-08-15 发布日期:2012-02-13

Nutritional Evaluation of Silkworm Cocoon Protein

 YANG  Xue-Feng,   Huang-Lian-Zhen,   Hao-Li-Ping   

  • Online:2001-08-15 Published:2012-02-13

摘要:  用化学和生物学方法测定桑蚕蛹蛋白质的营养价值,并与酪蛋白进行了比较。氨基酸分析结果表明:桑蚕蛹蛋白质含有17种氨基酸,必需氨基酸含量达40%,符合FAO/WHO评分模式。大鼠代谢实验与生长实验结果表明:桑蚕蛹蛋白质的表观消化率(AD),真消化率(TD),生物学价值(BV)和蛋白质净利用率(NPR)分别为94.05±0.80,95.76±0.68,94.72±1.19,90.70±1.30。蛋白质功效比值(PER),净蛋白质比值(NPR)分别为2.00±0.25,2.66±0.18。各指标与酪蛋白比较均无显著性差异,说明桑蚕蛹蛋白质是一种优良的蛋白质。

关键词: 桑蚕蛹, 蛋白质, 营养评价

Abstract: The nutritional evaluation of silkworm cocoon protein was assqyed by chemical analysis and animal experiments. The results of the amino acid analysis showed that silkworm cocoon protein contained 17 amino acids accounted for 40%of the total amino acid contents in corresponding with the evaluation model of FAO/WHO The results of rat metabolism and growth experiments showed that the apparent digestibility(AD),true digestibility(TD),biological value(BV)and net protein utilization(NPU) of silkworm cocoon protein were 94.05±0.80,95.76±0.68,94.72±1.19,90.70±1.30,respectively.Protein efficiency ratio(PER)and net protein ratio(NPR were 2.00±0.25 and 2.66±0.18,respectively. There was no significant difference in these indices between silkworm cocoon group and casein group. The results suggested that silkworm cocoon protein was a good protein resource.

Key words: Silkworm cocoon Protein Nutritional evaluation