超临界CO2萃取滩枣精油工艺条件优化研究  

Study on Optimization of Supercritical CO_2 Fluid Extraction Technology of Chinese Dates(Zizyphus jujuba) Essential Oil

作　　者：曹艳萍[1] 代宏哲[1] 曹炜[2] 刘步明[1] 韩志萍[1] 

机构地区：[1]榆林学院化学系,陕西榆林719000 [2]西北大学食品工程系,陕西西安710069

出　　处：《食品科学》2008年第12期231-233,共3页Food Science

基　　金：陕西省农业科技攻关项目(2006K02-G4);榆林市科技攻关项目(0599-08)

摘　　要：采用正交试验,考察萃取压力、温度、携带剂和料液比四个因素对滩枣精油萃取率的影响,并对精油成分进行GC-MS分析。得到的最佳萃取条件为:萃取压力35MPa,萃取温度40℃,乙醇作携带剂,料液比1:0.9,在此条件下经过0.5h萃取,滩枣精油的萃取率可达1.51%。This study aimed to optimize the extraction conditions of volatile components from Chinese dates （Zizyphusjujuba） through orthogonal test and analyze the extract by using GC-MS. Four affecting factors were investigated, including extractive pressure, temperature, co-solvent type and ratio of raw material to co-solvent. The optimal extraction conditions are： extraction pressure 35 MPa, temperature 40 ℃; and ethanol as co-solvent, ratio of raw material to ethanol 1：0.9. The extraction yield could reach 1.51% under these optimal conditions.

关 键 词：滩枣 超临界CO2萃取 正交试验 

分 类 号：TS201.1[轻工技术与工程—食品科学]