摘要
目的:采用超临界CO2流体萃取技术萃取紫苏叶挥发油,优化萃取工艺。方法:以紫苏叶挥发油得率为指标,通过单因素试验和正交试验考察萃取温度、萃取压力、CO2流量、萃取时间4个因素对紫苏叶挥发油的超临界CO2流体萃取的影响。结果:萃取压力20MPa、萃取温度35℃、CO2流量为10kg/h的条件下萃取150min为最佳工艺。结论:超临界CO2流体萃取技术萃取紫苏叶挥发油得率达3.2%。
The objective of this study was to optimize the supercritical fluid CO2 extraction of volatile oil from Perilla frutescens leaves.Single factor and orthogonal design methods were used to investigate the effects of pressure,temperature,extraction time and CO2 flow rate on extraction rate of volatile oil.Pressure of 20 MPa,temperature of 35 ℃,CO2 flow rate of 10 kg/h and extraction time of 150 min were found optimum.Under the optimal extraction conditions,the extraction rate of volatile oil was up to 3.2%.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第6期124-126,共3页
Food Science
关键词
紫苏
超临界CO2萃取
挥发油
Perilla frutescens
supercritical fluid CO2 extraction
volatile oil
