利用亚临界萃取技术提取生姜中的姜油  

Study on subcritical extraction of ginger oil

作　　者：常大伟[1] 孙娇娇[1] 刘树兴[1] 

机构地区：[1]陕西科技大学生命科学与工程学院,陕西西安710021

出　　处：《食品与机械》2015年第1期159-163,共5页Food and Machinery

基　　金：陕西省科技厅项目(编号:2012JQ3013);陕西科技大学博士科研启动基金(编号:BJ11-13);陕西科技大学校内项目(编号:2012SB018)

摘　　要：以生姜为原料,利用亚临界流体萃取技术提取姜油,并与传统水蒸气蒸馏法提取的姜油进行比较。研究表明：以1,1,1,2-四氟乙烷为萃取剂,最佳工艺条件为原料颗粒度60目,萃取时间1.5h,萃取温度30-40℃。在该工艺条件下,生姜的出油率为3.14%。GC—MS分析表明,亚临界流体萃取得到的姜油主要组分为α-姜黄烯和姜烯,含量分别为16.39%及27.59%,所得生姜油感官品质,特征组分纯度均优于水蒸气蒸馏法。The gingers were selected as raw material and the optimum extract conditions of essential oil of ginger were studied by using subcritical extraction technology.The essential oil of ginger from the methods of subcritical extraction and hydro-distillation were compared.The 1,1,1,2-tetrafluoroethane was used as the extraction agent.The optimum conditions of subcritical extraction were as follows：the materials granularity was 60 mesh;subcritical extraction time was 1.5hours and extraction temperature was 30-40 ℃.Under the conditions,the extraction ratio of ginger essential oil was about 3.14%.The essential oil components were analyzed by GC—MS.α-curcumene and zingiberene were the main components according for 16.39% and 27.59%from subcritical extraction technology.Both the sensory quality and purity of characteristic component of ginger oil obtained using subcritical extraction were better than hydro-distillation.

关 键 词：生姜 姜油 亚临界萃取 提取 

分 类 号：TQ028.32[化学工程] TQ461