水酶法提取葵花籽油的工艺

Aqueous Enzymatic Extraction of Sunflower Seeds Oil

研究了水酶法提取葵花籽油的工艺。通过三因素(水∶籽、酶∶籽、酶解时间)三水平的正交试验,确定了提油工艺参数,即干法粉碎脱壳葵花籽,m(水)∶m(籽)=5∶1,复合纤维素酶添加量为2.5%(w/w),搅拌速度250 r/min,反应温度50℃,酶解时间7 h,游离油得率达到90%左右。提取得到的葵花籽油色泽淡黄清亮,气味芬芳。

The sunflower seeds oil was produced using enzymatic hydrolysis method. The optimum extraction conditions were established by the orthogonal test. Dehulled sunflower seeds were ground without water, and water/seeds ratio was 5：1（w/w）. The enzymatic treatment was performed at 50 ℃ with 2.5 % the mixture of a cellulase for 7 h with stirring （250 r/min）. The oil extractability was about 90%. The color of the oil was pale yelloW.