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双缩脲法和凯氏定氮法测定饲料中蛋白质含量的比较研究

作  者:
张厚锋;张淑萍
关键词:
双缩脲法;凯氏定氮法;饲料蛋白质;对比实验
摘  要:
蛋白质含量是饲料质量控制的重要指标之一。本实验用凯氏定氮法和双缩脲法测定饲料中蛋白质含量作对比实验,结果表明:这两种方法所得实验结果差异较大,双缩脲法测得结果较凯氏法低约15.1%,且结果不稳定,不适于饲料蛋白质含量的测定。
译  名:
Comparison study on the content of protein in feed by the biuret and Kjeldahl nitrogen determination
作  者:
Zhang Houfeng Zhang Shuping
关键词:
biuret method;Kjeldahl determination;comparison experiment;protein in feed
摘  要:
The content of protein is one main trait of feed quality.In this experiment, the content of protein was assayed by biuret method and Kjeldahl determination.The results indicated that: the determination of protein were significantly affected by different anlyzed ways.The content of protein by biuret is about 15.1 % lower than that of Kjeldahl determination,and the result by biuret is not credible.So assaying the content of protein by biuret is not adaptive.

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