中文摘要：

以虾壳降解产物几丁寡糖含量为指标,单因素法考察温度、酶浓度、pH、时间对蜗牛酶降解虾壳的影响,确定蜗牛酶降解虾壳的大致条件.在此基础上,进一步采用正交试验法确定蜗牛酶降解虾壳的最佳工艺条件.采用TLC方法检测降解产物,结果表明：蜗牛酶降解虾壳的最佳工艺条件是温度40℃,pH 3.8,酶浓度5mg/mL,时间为4h,酶解产物主要是几丁三糖.

英文摘要：

The effects of temperature, enzyme concentration, pH and time on the degradation of shrimp shell by snailase were investigated by using the methods of single factor and the orthogonal- the test.The degradation products of shrimp shell were analysed by TLC.The results showed that the optimum conditions of degradation of shrimp shell by pH 3.8, using enzyme concentration of 10 mg/mL,and uct was mainly chitotriose. snailase were under temperature of 40 ℃ and degradation for 4 h.And the degradation prod-