酶曲复合水解法生产小麦麸皮汁工艺研究

The process research of enzymatic-Qu complex hydrolysis method to produce the wheat bran juice

比较单纯酶法、霉菌曲法和酶曲复合法3种水解方法生产麸皮汁的水解效果,确定水解工艺参数.结果表明:酶曲复合法水解麸皮生产麸皮汁的效果最好.酶曲复合法水解麸皮汁的最佳工艺为先用0.4%糖化酶,在60℃糖化麸皮30 min,再用今野曲霉C479所制的曲进一步水解,曲加入量7%,在30℃下处理4 d,麸皮汁的还原糖含量达19.63 g/L,氨基酸态氮含量达1.32 g/L.

Enzymatic,Qu,and enzymatic-Qu complex hydrolysis method were compared in producing bran juice,and hydrolyze process parameters were determined.The results show that enzymatic-Qu complex hydrolysis method can obtain the best effect and the optimal processes are as follows： 0.4% Glucoamylase is used to saccharify bran juice with the time of 30 min at 60℃.After that,7% Qu C479 is added to wheat bran juice to hydrolyzed 4 d at 30 ℃.Under the optimal conditions,the content of reducing sugar and amino acid nitrogen is 19.63 and 1.32g/L,respectively.