酶法辅助提取米糠油的工艺条件探讨

摘要

Rice brans were used as raw materials in the experiment , in order to obtain high quality edible rice bran oil bypectinase and cellulase catalytic leaching. The process conditions were optimized by single factor test and orthogonal experiment. The results showed that the optimized conditions were enzymolysis temperature 55 ℃, time 6.0 h, pectinase dosage 1.5%, cellulase dosage 2.0%. The extraction ratio of rice bran oil was 63.87 %. The factors affected the extraction ratio of primary and secondary order: cellulase dosage >enzymolysis temperature>pectinase dosage>time.%以米糠为原料,利用果胶酶和纤维素酶催化浸提米糠油,探讨提取的最佳工艺条件.通过单因素试验和正交试验,确定酶催化浸出米糠油最佳提取条件为:酶解温度55℃,时间6.0 h,果胶酶用量1.5%,纤维素酶用量2.0%,米糠油的提取率为63.87%.影响米糠油提取率的因素大小顺序为:纤维素酶用量>酶解温度>果胶酶用量>酶解时间.