摘要
以薄荷原油为原料 ,借助超临界CO2 萃取技术对其中薄荷醇进行提纯 .实验结果表明 ,较好的萃取参数压力为 :9.0～ 9.5MPa、温度 3 5～ 4 5℃ .提高薄荷醇纯度 ,可缩短通过冷冻结晶提取薄荷醇的时间 .
Peppermint alcohol in peppermint crude oil was puried by means of supercritical CO 2 extraction. The experimental results indicated that the better ranges of extraction parameters are 9.0～9.5 MPa for pressure and 35～45 ℃ for temperature. The increase of peppermint alcohol content in peppermint oil saves extracting time during freezing crystallization and improves production efficiency.
关键词
薄荷原油
薄荷醇
分离提纯
超临界CO2萃取
peppermint crude oil
peppermint alcohol
supercritical fluid
purification
crystallization
