摘要
本文以氯仿、乙醚和正己烷-异丙醇(v/v=3∶2)三种不同溶剂对风吹楠种子油进行萃取,比较了不同溶剂对种子萃出率的影响,结果表明以乙醚为溶剂时萃出率最高;并考察了萃取时间、超声波以及萃取溶剂体积对萃出率的影响。最终优化的萃取工艺为:以乙醚为溶剂,液料比为10∶1(v/w),超声波(25℃,60 W)萃取2h,萃出率达到60.27 wt%。萃取的种子油经转酯化后,GC-MS分析其脂肪酸组分,结果表明风吹楠种子油脂中月桂酸(42.58%)和肉豆蔻酸(47.55%)占总脂肪酸的90.13%,不饱和脂肪酸不到3%。
Horsfieldia amygdalina oil was extracted using three different solvents of chloroform,ethyl ether and hexane-isopropanol（3：2,volume ratio）.The results showed ethyl ether was the most efficient solvent for extraction.The effects of extraction time,ultrasonic wave and solvent volume on seed extraction yield were studied.The maximum extraction yield（60.27 wt%） was achieved with a ratio 10：1（v/w） of ethyl ether to seed kernel for 2 h extraction time under ultrasonic conditions（25 ℃,60 W）.After transesterification of the seed oil with methanol,its major fatty acid composition was analyzed by GC-MS.The lauric acid（42.58%） and myristic acid（47.55%） accounted for 90.13% of total fatty acids,and unsaturated fatty acids was less than 3%.
出处
《天然产物研究与开发》
CAS
CSCD
北大核心
2012年第B12期110-113,共4页
Natural Product Research and Development
基金
中国科学院知识创新工程重要方向性项目(KSCX2-YW-G-075)
国家自然科学基金资助项目(21076220)
关键词
风吹楠
萃取工艺
转酯化
脂肪酸
GC-MS
Horsfieldia amygdalina
extraction technology
transesterification
fatty acids
GC-MS
