超临界CO_2流体萃取技术提取核桃油的研究  

Extracting Walnut Oil With Supercritical CO_2 Fluid Technique

作　　者：吴彩娥[1] 阎师杰[1] 寇晓虹[1] 郝利平[1] 杜俊民[1] 李晓娟 

机构地区：[1]山西农业大学

出　　处：《农业工程学报》2001年第6期135-138,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：山西省教育厅科技开发项目 (编号 990 14 ) ;山西省回国留学人员项目 990 47

摘　　要：以新鲜的核桃仁为原料 ,研究了在超临界状态下物料的粉碎度、萃取压力、萃取温度、萃取时间对核桃油萃取效果的影响。结果表明 ,超临界 CO2 流体萃取核桃油的最佳工艺条件为粉碎度 3 0目、萃取压强 3 0 MPa、萃取温度 4 5℃、萃取时间 5 h,此条件下核桃油的萃取率可达 93 .98%。Walnut meat was taken as experimental material of extraction condition. The influence of extracting pressure, temperature, time and material size on the extraction efficiencies of walnut oil was studied systematically. The results showed that, the efficient conditions of supercritical CO 2 fluid extraction were at 45℃, 30 MPa, 5 h. The extracting rate can be up to 93.98%.

关 键 词：核桃仁 超临界CO2萃取 核桃油 提取 

分 类 号：TS225.19[轻工技术与工程—粮食、油脂及植物蛋白工程] TS224.4[轻工技术与工程—食品科学与工程]