八月瓜籽油的超声波辅助提取及其理化性质

Ultrasonic extraction and physicochemical properties of Akebia trifoliate seed oil

以八月瓜籽为原料,采用超声波辅助手段提取油脂,实验考察料液比、超声处理时间、温度以及提取次数对出油率的影响,在单因素实验的基础上,通过正交试验优化提取工艺,结果表明,以石油醚作为提取溶剂,料液比1∶11(W/V),超声温度60℃,超声时间50 min,提取次数3次的条件下,出油率达到37.40%;八月瓜籽油酸价、过氧化值指标均达到国家食用油脂指标要求,具有一定的应用开发前景.

The ultrasonic‐aided extraction was utilized to isolate the oil from Akebia trifoliate seed .The factors affecting the yield of Akebia trifoliate seed oil ,including the ratio of Akebia trifoliate seed to solvent ,ultrasonic time and ultrasonic temperature were investigated .The extraction process was optimized by a orthogonal test based on the single factor experiments . The resultant optimal conditions are the ratio of Akebia trifoliate seed to solvent of 1∶11 （W/V） ,the ultrasonic temperature 60 ℃ ,the ultrasonic time 50 min ,extraction 3 times .Un‐der theses conditions ,the yield of Akebia trifoliate seed oil could be 37 .40% .The acid value and peroxide value of the A kebia trifoliate seed oil determined met the standards of the state standard of edible oils .So ,it was very suitable for the development of a nutritional oil .