野生桃种仁油的超声波辅助提取及GC-MS分析

采用超声波辅助法研究了超声功率、提取时间、溶剂种类、料液比对野生桃种仁油提取率的影响。在单因素试验的基础上,进行了正交试验。结果表明,各因素对超声波辅助提取野生桃种仁油的影响次序为:溶剂种类提取时间超声功率料液比;最佳工艺条件参数是:提取剂为正己烷,超声功率200 W,超声时间15 min,料液比1∶11,野生桃种仁油的提取率为45.97%。气相色谱-质谱分析表明,野生桃种仁油的油脂组成主要是油酸(65.21%)、亚油酸(19.08%)、棕榈酸(11.06%)、硬脂酸(3.39%)。

Ultrasound-Assisted Extraction and GC-MS analysis of the oil from seed kernel of AmygdalusSpersicaSL.

Ultrasonic extraction method was used to extract the oil from seed kernel of Amygdalus persica L, and the effects of ultrasonic power, extraction time, solvent sorts, solid-liquid ratio on extraction rate were studied by single factor and orthogonal experiments in this paper. The result by an orthogonal experiment indicated that effectiveness factors on oil yield were the order as follows: solvent sorts ? extraction time ? ultrasonic power ? solid-liquid ratio. The optimum conditions were determined as follows: hexane as extraction solvent, solid-liquid ratio 1:11, extraction time 15min, ultrasonic power 200W. The extraction rate of A. persica seeds kernel oil was 45.97%. The results of GC-MS analysis showed that the main components of fatty acids were oleic acid(65.21%), linoleic acid (19.08%), Hexadecanoic acid (11.06%), Octadecanoic acid (3.39%).