The content of hydroxyproline(Hyp) can be determined by colorimetry,and the content of hydrolyzed animal collagen proteins in adulterated milk was calculated by Hyp content.

• 首先通过比色方法测得羟脯氨酸的质量浓度,由测得的羟脯氨酸换算得出乳中掺加的动物胶原水解蛋白的量。