The technology conditions of preparation for silver carp protein hydrolysate by enzyme were examined.The effects of proteinase,reaction time,temperature,initial pH and the ratio of solid / liquid were also studied in detail by orthogonal experiment.The results showed that the optimum conditions of enzymolysis were: the ratio of neutral proteinase to papain was 2:1(g/g), substrate concentration was 1:2(solid:liquid,g/mL), enzyme added was 1.6 %, initial pH7.0,hydrolyzed for 5 h at 50 ℃,After enzymolysis,the content of protein hydrolysis...