考察了几种水解酶对山药粘液质的降解。以黏度为考察指标,实验研究了复合酶配比、加酶量、酶解时间等单因素对黏液质酶解效果的影响,通过正交试验,确定的山药黏液质纤维素酶-甘露聚糖酶复合酶解工艺参数为:酶解温度50℃,纤维素酶与甘露聚糖酶复合配比为2∶1(质量比)、加酶量0.6%、酶解时间90 min。优化工艺条件下酶解,可使黏液质黏度降低64.81%。

The paper studied effects of several kinds of enzymes on degradation of yam mucilage.Taking yam mucilage as the object,according to the viscosity,the effects of compound enzyme ration,enzyme amount and hydrolysis time were investigated.By single factor and orthogonal tests,the optimal hydrolysis condition of the proportion of compound enzyme( Cellulase:Mannase) 2:1( w:w),enzyme amount 0.6%( w/w) and time 90 min were determined.Under the optimization of process condition,the viscosity of yam mucilage was reduced by 64.81%.