苹果籽油的超声波辅助提取及成分分析

Ultrasonic wave-assisted extraction and fatty acid composition of apple seed oil

以液料比、超声时间、超声功率3个因素对超声波辅助提取苹果籽油进行二次通用旋转优化设计试验,得到了苹果籽油提取率的回归方程,并确定最佳提取条件为:液料比8.13∶1,超声时间31.3min,超声功率165.2W。最佳条件下苹果籽油提取率24.40%。经GC-MS分析,苹果籽油中不饱和脂肪酸含量为85.31%,其中油酸35.05%、亚油酸49.19%。

Ultrasonic wave - assisted extraction conditions of apple seed oil were optimized by quadratic general rotary design, and quadratic regression equations were established. The optimum parameters of ratio of liquid to solid, ultrasonic time and ultrasonic power were 8.13 ： 1, 31.3 min and 165.2 W, respectively. Under the optimum conditions, the yield of apple seed oil was up to 24.40%. GC - MS analysis showed that the unsaturated fatty acids in apple seed oil were 85.31%, in which the content of oleic acid, linoleic acid were 35.05% and 49.19% ,respectively.