The essence of pile-fermenting and quality formation during the manu-facturing of Fuzhuan Brick Tea was revealed based on a lot of experimentalresults.In pile-fermenting,the power of substance transformation such asout-cell enzymes,and the corresponding condition such as water and acidenvironment,were provided by the microbial action which included self-reproduction and substitutation,accelerating complex changes of substancesin tea leaves,forming some new transformation or metabolism products,an...
