Abstract: Digestion process in Kjeldahl nitrogen analysis was optimized by orthogonal test.Application of the optimized Kjeldahl nitrogen analysis in analyzing milk fiber was discussed.

• 摘 要：采用凯氏定氮法分析牛奶蛋白纤维中的含氮量,尝试以含氮量变化来表征因染整加工引起的纤维中蛋白质组分的变化。