苏尼特羊肉氨基酸组成及与其他羊肉的对比分析

目的 分析苏尼特羊肉氨基酸组成以及与其他羊肉氨基酸组成进行对比分析。方法 以锡林郭勒放牧型苏尼特羊肉、乌珠穆沁羊肉、察哈尔羊肉以及两个区域舍饲型小尾寒羊肉为研究对象,通过氨基酸自动分析仪测定不同样品中氨基酸组成和含量,并进行比较分析。结果 苏尼特羊肉的水解氨基酸和游离氨基酸含量显著高于乌珠穆沁羊肉和察哈尔羊肉(P<0.05);苏尼特羊肉的水解氨基酸含量与舍饲型小尾寒羊肉无显著差异(P>0.05),但是其游离氨基酸含量显著高于舍饲型小尾寒羊肉。5种羊肉必需氨基酸/非必需氨基酸均高于60%,必需氨基酸/总氨基酸在40%左右,符合联合国粮农组织/世界卫生组织(UnitedNationsFood Agriculture Organization/World Health Organization, FAO/WHO)人体理想蛋白质模式。结论 苏尼特羊肉水解氨基酸和游离氨基酸组成丰富,含量较高,具有较高营养价值和食用品质。

Analysis of amino acid composition of Sunit mutton and comparison with other mutton

Objective Sunit mutton is a famous regional brand (geographical indication products), and the quality of mutton needs to be supported by quantitative data.Methods In this study, Xilingol grazing Sunit mutton, Ujimqin mutton, Chahar mutton and two regional Small Tailed Han mutton were used as raw materials. Amino acid composition and content of different samples were determined by automatic amino acid analyzer, and a comparative study was conducted.Results The contents of hydrolyzed amino acid and free amino acid of Sunit mutton were significantly higher than those of Ujimqin mutton and Chahar mutton under grazing conditions; The hydrolyzed amino acid content of Sunit mutton was not significantly different from that of the Small Tailed Han mutton, but the free amino acid content of Sunit mutton was significantly lower than that of the Small Tailed Han mutton.The essential amino acids/non-essential amino acids of 5 kinds of mutton were higher than 60%, and the essential amino acids/total amino acids were about 40%, which was in line with the ideal FAO/WHO protein pattern of human body.Conclusion Sunit lamb contains more amino acids, free and flavorful amino acids give it a delicious taste.