鲜牛乳中掺杂非蛋白氮及非乳蛋白的检测研究

Determination of non-protein-nitrogen and non-dairy protein in milk

利用氨基酸分析仪对鲜牛乳中的游离氨基酸及水解氨基酸进行分析,以确定牛乳中氨基酸质量浓度及比例组成,选出1种或多种氨基酸作为特征氨基酸,结合凯氏定氮法测定鲜牛乳中的粗蛋白质量浓度,用以辨别鲜牛乳中的蛋白质来源。

This project analyzed the contents of fi：ee and hydrolytic amino acid in raw milk using the amino acid analyzer, determined the content and composition of amino acids in milk, select one or several characteristic amino acid（s）, and distinguished the protein sources of dairy products combining with the crude protein content analyzed with Kjeldahl method.