| 摘要: |
| 从害虫开发利用的角度出发,对大螟Sesamia inferens(Walker)幼虫的蛋白质、氨基酸、脂肪酸、矿物质等营养成分进行了分析测试。结果表明,大螟幼虫具有较高的营养价值。虫体的蛋白质、脂肪、总糖、胆固醇及灰分含量分别为146.0,119.1,2.0,0.4和23.1 g/kg;含有17种氨基酸,包括7种人体必需氨基酸,总氨基酸含量为94.7 g/kg,必需氨基酸占总氨基酸的42.6%,必需氨基酸与非必需氨基酸的比值为74.1%,符合FAO推荐的理想蛋白模式,其第一限制性氨基酸为含硫氨基酸,即蛋氨酸和胱氨酸,第二限制性氨基酸为亮氨酸;大螟幼虫油脂的不饱和脂肪酸含量为597.9 g/kg,高于大多数动物性油脂及畜肉类食品,其中单不饱和脂肪酸尤其丰富,含量高达580.1g/kg,而必需脂肪酸含量相对较低,为17.8 g/kg;大螟幼虫还含有K、Ca、Mg、Fe、Zn、Cu、Mn、Co等多种矿物质和微量元素。 |
| 关键词: 大螟 营养成分 营养价值 |
| DOI： |
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| 基金项目:四川省林业厅重点科研项目（川林计1999-389） |
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| Analysis of nutrition value of Sesamia inferens (Walker) |
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| Abstract: |
| The primary nutritional components analysis of Sesamia inferens(Walker) larva showed that the larvae were of good nutrition value.The contents of protein,fat,carbohydrate,cholesterol and ash were 146.0,119.1,2.0,0.4 and 23.1 g/kg in the fresh larvae,respectively.The larva contained seventeen amino acids,and seven essential amino acids to human.The content of total amino acids was 94.7 g/kg,and the essential amino acids were 42.6% of the total amino acids while the percentage of essential amino acids content to the nonessential amino acids was 74.1%.The essential amino acid pattern of S.inferens larva met the standard protein pattern recommended by FAO.The first limiting amino acid of the larva protein was the amino acid containing sulfur(Met+Cys).and the second limiting amino acid was leu.The content of unsaturated fatty acids of the insect was 597.9 g/kg,higher than that of most animal lipid and livestock meat.In the insect fat,the content of monounsaturated fatty acids was as higher as 580.1 g/kg.In addition,S.inferens(Walker) larva contained many kinds of valuable minerals,and trace elements,such as K,Ca,Mg,Fe,Zn,Cu,Mn and Co. |
| Key words: Sesamia inferens(Walker),nutritional component,nutrition value |
