分析与检测

甘南欧拉藏羊脏器脂肪酸与氨基酸测定及营养评价

  • 王建忠 ,
  • 师希雄 ,
  • 李雪茹 ,
  • 余群力 ,
  • 田铸
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  • 甘肃农业大学 食品科学与工程学院,甘肃 兰州,730070
硕士研究生(师希雄教授为通讯作者,E-mail:131119 1786@qq.com)

收稿日期: 2019-05-28

  网络出版日期: 2019-12-20

基金资助

国家自然科学基金项目(31760436);青年研究生指导教师扶持基金项目(GAU-QNDS-201716)

Determination and nutritional evaluation of fatty acids and amino acids in offals of Gannan Oula Tibetan sheep

  • WANG Jianzhong ,
  • SHI Xixiong ,
  • LI Xueru ,
  • YU Qunli ,
  • TIAN Zhu
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  • College of Food Science and Engineering,Gansu Agricultural University, Lanzhou 730070, China

Received date: 2019-05-28

  Online published: 2019-12-20

摘要

以甘南欧拉藏羊脏器(心、肝、肺和胃)为研究对象,参考国标测定水分、灰分、蛋白质、脂肪、氨基酸与脂肪酸含量并进行营养评价。结果表明,胃中水分含量约为82.68%(质量分数)显著高于其他脏器(P<0.05),灰分含量最低约为0.33%(质量分数);肝中蛋白质含量最高约为16.99%(质量分数),脂肪含量约为3.29%(质量分数);心中脂肪含量约为4.45%(质量分数)显著高于其他脏器(P<0.05),可见肝更符合高蛋白低脂肪的特性。心、肝、肺和胃中饱和脂肪酸与不饱和脂肪酸比例(U/S)分别为0.69、0.85、1.66和0.90,发现胃与营养协会推荐人体摄入脂肪酸的组成比例(U/S为1∶1)更接近;心、肝、肺和胃中必需氨基酸/总氨基酸(EAA/TAA)值分别为40.7%、42.7%、35.7%和32.6%,必需氨基酸指数(EAAI)分别为68.27、64.65、42.35和64.30,心更接近标准蛋白氨基酸指数。总之,欧拉藏羊脏器具有一定的开发潜力与研究意义。

本文引用格式

王建忠 , 师希雄 , 李雪茹 , 余群力 , 田铸 . 甘南欧拉藏羊脏器脂肪酸与氨基酸测定及营养评价[J]. 食品与发酵工业, 2019 , 45(20) : 256 -261 . DOI: 10.13995/j.cnki.11-1802/ts.021213

Abstract

The Gannan Oula Tibetan sheep offals (heart, liver, lung and stomach) were used as research objects to determine the moisture, ash, protein, fat, amino acid and fatty acid content in accordance with National standard, and to carry out nutritional evaluation. The results showed that the moisture content in the stomach was about 82.68%, which was significantly higher than that of other organs (P<0.05), and the ash content was the lowest (about 0.33%). The protein content in liver was the highest (about 16.99%), while the fat content was about 3.29%. In addition, the fat content in heart was about 4.45%, which was significantly higher than that of other organs (P<0.05), indicating that the liver was more in line with the characteristics of high protein and low fat. The ratio of saturated fatty acids to unsaturated fatty acids (U/S) in heart, liver, lung and stomach was 0.69, 0.85, 1.66 and 0.90, respectively. The composition ratio of fatty acids in the stomach was closer to the recommended ratio of the Nutrition Society (1∶1). The essential amino acids/total amino acids (EAA/TAA) in heart, liver, lung and stomach were 40.7%, 42.7%, 35.7% and 32.6%, respectively, and the essential amino acid indices (EAAI) were 68.27, 64.65, 42.35 and 64.30, respectively. The heart was closer to the EAAI of standard protein. In short, Oula Tibetan sheep organs has certain development potential and research significance.

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