Box-Behnken响应面法优化川佛手挥发油的超临界CO2萃取工艺
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篇名: Box-Behnken响应面法优化川佛手挥发油的超临界CO2萃取工艺
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摘要: 目的:优化川佛手挥发油成分超临界CO2萃取的提取工艺。方法:以挥发油得率为指标,分别考察萃取温度、萃取压力、CO2流量、萃取时间、分离压力和分离温度等单因素对川佛手挥发油得率的影响。在此基础上,选取影响显著的萃取温度、萃取压力、CO2流量和萃取时间4个因素,采用Box-Behnken响应面法优化超临界CO2萃取工艺参数。结果:在萃取温度67 ℃、萃取压力57 MPa、CO2流量22 L/h和萃取时间4 h时,川佛手挥发油超临界CO2萃取得率最高,达到1.892%(n=3),与预测值(1.937%)的相对误差为2.32%。结论:优选的川佛手挥发油的超临界CO2萃取工艺合理、可行。
ABSTRACT: OBJECTIVE: To optimize SFE-CO2 extraction technology of volatile oil from Citrisarcodactylis fructus. METHODS: Using the yield of volatile oil as index, the influences of extraction temperature, extraction pressure, CO2 flow, extraction time, acquisition pressure and acquisition temperature on the yield of volatile oil were investigated. Moreover, 4 significant factors, such as extraction temperature, extraction pressure, CO2 flow and extraction time, were selected; the parameters of SFE-CO2 extraction technology were optimized by Box-Behnken design-response surface methodology. RESULTS: The results showed that the highest extraction rate could be obtained with extraction temperature at 67 ℃, extraction pressure at 57 MPa, CO2 flow at 22 L/h and extraction time for 4 h. The highest extraction rate was 1.892%(n=3), and the relative error between it and predicted value (1.937%) was 2.32%. CONCLUSIONS: Optimized SFE-CO2 extraction technology for volatile oil from C. fructus is reasonable and feasible.
期刊: 2016年第27卷第28期
作者: 陈斯玮,王芳,章卓,张丹
AUTHORS: CHEN Siwei,WANG Fang,ZHANG Zhuo,ZHANG Dan
关键字: Box-Behnken响应面法;川佛手;挥发油;超临界CO2萃取
KEYWORDS: Box-Behnken-response surface methodology; Citrisarcodactylis fructus; Volatile oil; SFE-CO2 extraction
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