超临界CO_2萃取辣椒油的工艺条件优化研究.pdf

第41卷第4期
应用化工
Vol 41 No 4
2012年4月
Applied Chemical Industry
Apr.2012
超临界CO2萃取辣椒油的工艺条件优化研究
黄美英,赖庆轲,李廷真,梁克中,梅彬彬
(重庆三峡学院化学与环境工程学院,重庆万州404000
摘要:以三峡库区种植的辣椒为原料,采用超临界CO2萃取技术,从辣椒中提取辣椒油,考察了萃取温度、萃取压
力和萃取时间对辣椒油萃取率的影响。结果表明,萃取温度对辣椒油的萃取率影响最大,其次是萃取压力,萃取时
间影响最小;超临界CO2萃取辣椒油的最适宜条件为,萃取温度40℃,萃取压カ10MPa,时间75min,其萃取率为
9.37%;超临界CO2萃取技术应用于辣椒油的提取具有工艺简单、操作安全、能耗低、无毒、萃取剂易回收、萃取率
和产品纯度高等优点。
关键词:超临界流体萃取;辣椒油;工艺优化
中图分类号:TQ028.8文献标识码:A文章编号:1671-3206(2012)04-0633-04
Research on optimum condition of supercritical fluid CO
extraction pepper oi
HUANG Mei-ying, LA/ ing-ke, L Ting-zhen, LIANG Ke-zhong, MEI Bin-bin
College of Chemical and Environmental Engineering of Chongging Three Gorges University, Wanzhou 404000, China
Abstract: The extraction optimum condition of pepper oil from pepper of Three Gorges Reservoir Are
with supercritical fluid CO extraction echnique f e t of temperature, pressure and time on extraction of
pepper were investigated. The results showed that the temperature was the most important factor on extrac-
tion, and second was extraction pressure, and last was extraction time. The experiments also indicated that
the optimum parameters of the supercritical C, techniques were as follow: extraction temperature was
40 C, extraction pressure 10 Mpa, and extraction time 75 min, the extraction rate was 9. 37% at these
conditions. And we could find the supercritical fluid CO extraction technical has many advantages: a sim-
ple technique, safe to operate, low energy consumption, non-poisonous, easy to recover, high extraction rate
and high purity etc
Key words: supercritical fluid extraction; pepper oil; tenological condition
辣椒油是从辣椒中提取的深红色粘性油状液究1?。本文以三峡库区特产的干红辣椒为原料,
体,是天然食用色素,广泛应用于食品、药品和化妆采用超临界流体CO2直接提取辣椒中的辣椒油,并
品等行业?。目前,工业上多用乙醇、丙、乙醚、从单因素实验和正交实验两个方面获取辣椒油萃取
乙酸乙酵、己烷等有机溶剂从辣椒粉中提取得到辣工艺的最佳条件,为工业化生产提供可靠的依据。
椒油?,产品中有较高的残留溶剂、辣味及特殊气
实验部分
味等,很难满足食品工业的要求,从而影响了辣椒的
深加工利用,制约了辣椒油在食品等工业中的进
1.1原料与仪器
步应用。超临界萃取技术是一种先进的绿色分离提
干红辣椒,三峡库区特产;CO2(纯度9.5%)。
取技术,具有工艺简单、能耗低,萃取剂无毒、易回
HA120-5001型超临界流体萃取装置;J1000
收、操作安全、产品纯度极高等优点,已经广泛应用型电子天平。
在工业生产当中],国内外将该技术应用于辣椒1.2实验方法
中辣椒油或辣椒素提取也进行了一些实验研
萃取分离流程示意图见图1。
收稿日期:201202-23修改稿日期:2012-03-
基金项目:重庆高校创新团队建设计刘重庆三峡学院资助项目(201040
作者简介:黄美英(1971-),女,四川内江人,重庆三峡学院副教授,博上研究生,主要从事结晶与苯取等分离提纯技术研
究。电话:1872365866,E-mlil: hmytwo@ sina,com