超临界CO_2萃取杜仲翅果油研究  

Study on Extraction Process of Eucommia Samara Oil with Supercritical CO_2

作　　者：刘秋玲[1] 崔丽[1] 陈栋[1] 肖文军[1] 

机构地区：[1]湖南农业大学国家植物功能成分利用工程技术研究中心/湖南农业大学湖南省植物功能成分利用协同创新中心,长沙410128

出　　处：《中国农学通报》2016年第4期108-112,共5页Chinese Agricultural Science Bulletin

基　　金：国家"十二五"科技支撑计划项目"武陵山区特色资源高效综合利用关键技术研究与示范"(2011BAD10B00)

摘　　要：为优化超临界CO_2萃取杜仲翅果油工艺参数,以杜仲翅果为原料,杜仲翅果油萃取得率为考察指标,采用控制单一变量法,分别确定超临界CO_2萃取杜仲翅果籽油的最佳萃取温度、萃取压力、分离温度及分离时间,再通过正交试验及验证性试验,优化筛选最佳提取工艺。结果表明,影响超临界CO_2萃取杜仲翅果油得率的影响因素大小次序为:萃取温度>萃取时间>萃取压力>分离温度,最优萃取工艺技术参数为萃取温度35℃、萃取压力35 MPa、分离温度45℃、分离时间50 min,在该工艺参数下,杜仲翅果油的得率为14.73%,其中α-亚麻酸含量为61.37%。The paper aims to optimize the supercritical CO_2 extraction of seed oil in Eucommia. Taking thesamara of Eucommia as raw material, and the extraction ratio of samara oil as the index, by controlling thechange of mono factors, the optimal extraction temperature, extraction pressure, separation temperature andextraction time were validated with supercritical CO_2 extraction of Eucommia seed oil. And then, orthogonaldesign and verification experiments were conducted to determine the optimal extraction process. Factorsinfluencing the extraction yield of oil in Eucommia were as follows： extraction temperature〉 extraction time〉extraction pressure〉 separation temperature. And the optimum condition was obtained as follows： theextraction temperature 35℃, the extraction pressure 35 MPa, the separation temperature 45℃, the separationtime 50 min. The yield of oil obtained under this condition with supercritical CO_2 was 14.73%, and theα-linolenic acid accounted for 61.37% of Eucommia seed oil.

关 键 词：杜仲 翅果 木本油料 超临界CO2 萃取 Α-亚麻酸 

分 类 号：TS201[轻工技术与工程—食品科学]