响应面法优化超声波辅助提取仿栗籽油工艺及其脂肪酸组成分析_麻成金 . Response Surface Optimization of Ultrasonic-Assisted Extraction and Fatty Acid Composition Analysis of Sloanea hemsleyana Seed Oil

Abstract

Response surface methodology(RSM) was employed to optimize the ultrasound-assisted extraction of essential oil from Sloanea hemsleyana seeds.Meanwhile,the chemical composition of the extracted essential oil was analyzed by GC-MS.The results showed that the optimal extraction conditions were cyclohexane as the best extraction solvent,single ultrasonic treatment for 3 s at a power level of 540 W followed by a 1-s interval,18 min of total extraction time,and 1:8.6 of solid-to-liquid ratio,resulting in an oil yield of 94.53%.The essential oil obtained under these conditions was abundant in unsaturated fatty acids with a total content of 70.13%.The contents of oleic acid and linoleic acid were 53.95% and 16.18%,respectively.