To obtain the hydrolysis of collagen, such ways as acid, alkali and alkaline proteinase are used.The effect of different methods to the performance index is discussed.

• 对于脱铬皮屑的水解，本文采用了三种方法：酸法水解、碱法水解和酶法水解，研究了各种水解方法对所得到的胶原蛋白水解物的各项性能指标的影响。