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研究超临界CO2萃取桂枝中油溶性成分的工艺.以萃取率为指标,考察了萃取压力、萃取温度、分离压力、分离温度、原料粒径等因素对萃取率的影响,并将超临界CO2萃取法与传统的挥发油提取法进行比较.萃取桂枝中挥发油的最佳超临界条件:压力为15 MPa、温度温度为35℃、分离温度为40℃、分离压力为4.2 MPa、萃取时间4 h、原料粒径18目.超临界CO2萃取与传统提取方法相比较:挥发油收率及纯度均高、且安全有效.
Abstract：The technology of supercritical-CO2 extraction of oil-soluble components from ramulus cinnamomi is studied.The extraction rate is regarded as objective.And based on this objective,the influence of extraction pressure,extraction temperature and time on the extraction rate of SFE-CO2 experimental apparatus are investigated.The technology of SFE-CO2 is compared with that of traditional extraction.The optimum extraction conditions are as follows: extraction of pressure is 15 Mpa,extraction of temperature is 35℃,dissociation of pressure is 4.2 Mpa,dissociation of temperature is 40℃,time is 4 h.SFE-CO2 excels the traditional solvent extraction in yield,purity,safety and efficiency.
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基本信息:
DOI：10.13573/j.cnki.sjzxyxb.2010.03.006
中图分类号:R284
引用信息:
[1]岳红坤,眭晓哲,王娟.超临界CO_2萃取桂枝中桂皮醛的研究[J].石家庄学院学报,2010,12(03):35-39.DOI:10.13573/j.cnki.sjzxyxb.2010.03.006.
2010-05-20
2010-05-20