Comparative Analysis of Physiochemical Indexes of Xifeng Daqu Starter Produced in Different Year and in Different Phase

The physiochemical indexes and sensory quality of Xifeng Daqu starter produced in different year and in different phase were compared.Meanwhile,the relationships among enzyme activity of different Daqu starter,the use level of Daqu starter,enzyme activity of auxilliary Daqu,and Daqu yield were analyzed.And the approaches to improve the quality of Xifeng Daqu starter were put forward.