超临界CO_2萃取法和水蒸气蒸馏法提取香榧外种皮化学成分研究  

Study on the Chemical Constituents of the Extractive from Episperm of Torreya Grandis by Supercritical CO_2 and Steam Distillation Method

作　　者：梁玉清[1] 罗金岳[2] 王贝贝[2] 

机构地区：[1]广东省生态环境与土壤研究所,广州510650 [2]南京林业大学化学工程学院

出　　处：《林业科技开发》2009年第5期36-39,共4页China Forestry Science and Technology

基　　金：江苏省自然科学基金资助项目(编号:BK2007218)

摘　　要：分别采用超临界CO2萃取法和水蒸气蒸馏法提取香榧外种皮提取物,并采用GC-MS分析手段对提取物的化学组成进行了定性和定量测定。从超临界CO2萃取的香榧外种皮提取物中鉴定出40个组分,相对含量较多的是香榧酯(14.90%)和7,15-海松二烯-3-酮(14.45%);由水蒸气蒸馏法得到的提取物中,相对含量较多的是柠檬烯(32.90%),β-蒎烯(13.48%);依据官能团来划分,超临界CO2萃取出的香榧外种皮提取物中,化学成分比较全面,含量均衡;而水蒸气蒸馏法得到的产物以沸点较低的单萜类烯烃居多。The extracts of Torreya grandis epispem were obtained by both supercritical CO2 extraction and steam distillation, and their chemical compositions were analyzed by GC-MS qualitatively and quantitatively. 40 components were identified in the extract by supercritical CO2 extraction, and the main components were methyl torreyagrandate （14.90%） and 7,15- pimaradiene -3-one （ 14.45% ）. However, the main components in the extract obtained by steam distillation were limonene （32.90%） and β-pinene （13.48%）. It was found based on functional group that the chemical compositions of the products extracted by supercritical CO2 extraction were more comprehensive and balanced; while the main chemical compositions of the products extracted by steam distillation were monoterpenes with low boiling point.

关 键 词：香榧外种皮 水蒸气蒸馏 超临界CO2 GC-MS 

分 类 号：TQ654.2[化学工程—精细化工] TS224[轻工技术与工程—粮食、油脂及植物蛋白工程]