金银花尺蠖幼虫粪便营养成分分析  

Analysis of nutrients in larva feces of Heterolocha jinyinhuaphaga

作　　者：向玉勇 陶琴 于士军 张元昶 XIANG Yuyong;TAO Qin;YU Shijun;ZHANG Yuanchang(School of Biology and Food Engineering,Chuzhou University,Chuzhou 239000,Anhui,China)

机构地区：[1]滁州学院生物与食品工程学院,安徽滁州239000

出　　处：《浙江农林大学学报》2020年第5期971-977,共7页Journal of Zhejiang A&F University

基　　金：安徽省高校优秀中青年骨干人才国内外访学研修重点项目(gxfxZD2016249);滁州学院科研启动基金项目(2019qd02)。

摘　　要：【目的】了解金银花尺蠖Heterolocha jinyinhuaphaga幼虫粪便的主要营养成分,评价其营养价值。【方法】采用国家标准检测方法,测定金银花尺蠖幼虫粪便主要营养成分质量分数,分析金银花尺蠖幼虫粪便的氨基酸分、必需氨基酸指数(IEAA)、必需氨基酸与非必需氨基酸的比值、不饱和脂肪酸与饱和脂肪酸的比值,并与常见虫茶进行比较分析。【结果】金银花尺蠖幼虫粪便的水分、总糖、粗脂肪及蛋白质质量分数分别为10.08%、2.40%、2.73%和11.89%;总氨基酸为4.3269 mg·g^–1,必需氨基酸总量为1.6662 mg·g^–1,必需氨基酸占总氨基酸的比例为38.51%,必需氨基酸与非必需氨基酸的比值为62.62%,IEAA为1.20,不饱和脂肪酸质量分数为64.05%,其不饱和脂肪酸(P)与饱和脂肪酸(S)的比值(P/S)为1.78,必需脂肪酸质量分数为30.49%;矿物元素钙、钾、镁的质量分数较高,分别为8.1267、4.9556和3.2573 mg·g^–1,铜质量分数最低,为0.0538 mg·g^–1;维生素C和维生素E的质量分数分别为0.3875和0.1583 mg·g^–1。【结论】金银花尺蠖幼虫粪便营养丰富,适宜作为一种新的虫茶进行开发利用。[Objective]This study aims to understand the nutritional content in larva feces of Heterolocha jinyinhuaphaga,and evaluate its nutritional value.[Method]By using national standard test method,the nutritional content in larva feces of H.jinyinhuaphaga were determined,and the amino acid content,index of essential amino acid(IEAA),ratio of essential amino acid to nonessential amino acid,and ratio of unsaturated fatty acid to saturated fatty acid(P/S)in larva feces of H.jinyinhuaphaga were analyzed and compared with those of common insect tea.[Result]The contents of water,total sugar,crude fat,and protein in larva feces were 10.08%,2.40%,2.73%,and 11.89%,respectively.Total amino acid content was 4.3269 mg·g^–1,and total content of essential amino acid was 1.6662 mg·g^–1.The proportion of essential amino acid to total amino acid was 38.51%,and the ratio of essential amino acid to nonessential amino acid was 62.62%.IEAA was 1.20.The mass fraction of unsaturated fatty acid was 64.05%and the ratio of unsaturated fatty acid to saturated fatty acid was 1.78.The essential fatty content was 30.49%.The contents of Ca,K,and Mg were higher,8.1267,4.9556,and 3.2573 mg·g^–1 respectively,while the content of Cu was the lowest,0.0538 mg·g^–1.The contents of Vitamin C and Vitamin E were 0.3875 and 0.1583 mg·g^–1.[Conclusion]The larva feces of H.jinyinhuaphaga are rich in nutrients and suitable for development and utilization as a new resource for insect tea.

关 键 词：昆虫学 金银花尺蠖 幼虫粪便 虫茶 营养成分 

分 类 号：Q964[生物学—昆虫学]