酶法提取米糠中阿魏酸的工艺研究

The Optimal Process of Enzymatic Extraction of Ferulic Acid From Defatted Rice Bran

以脱脂米糠为原料,通过实验探索纤维素酶法提取脱脂米糠中阿魏酸的最佳工艺。结果表明纤维素酶提取脱脂米糠中阿魏酸的最佳工艺为:pH值为4.5,加酶量25 mg,酶解温度为40℃,酶解时间为5 h为最优条件,阿魏酸得率为18.64 mg/10 g。该研究为米糠的再利用提供了一种新方法。

The optimal process of extracting ferulic acid from defatted rice bran by cellulase was explored through experiments.The results showed that the optimal process was as follows:initial pH4.5,enzymatic hydrolysis temperature 40℃,adding enzyme 25 mg,enzymatic hydrolysis time 5 h.The yield was 18.64 mg/10g under this condition.This study provides a new method for reuse of rice bran.