响应面法优化亚麻籽油提取工艺

食品科学 ›› 2012, Vol. 33 ›› Issue (14): 45-49.

响应面法优化亚麻籽油提取工艺

龙云飞，王沛佩，杨克迪，文衍宣

广西大学化学化工学院

收稿日期:2011-06-29 修回日期:2012-06-14 出版日期:2012-07-25 发布日期:2012-07-27
通讯作者: 龙云飞 E-mail:longyf@gxu.edu.cn

Optimization of Extraction Process for Flaxseed Oil by Response Surface Analysis

Received:2011-06-29 Revised:2012-06-14 Online:2012-07-25 Published:2012-07-27
Contact: 中龙云飞 E-mail:longyf@gxu.edu.cn

摘要/Abstract

摘要： 为提高亚麻籽油的提取率，采用响应面法优化亚麻籽油的提取工艺条件。选取提取温度、提取时间、液固比、搅拌速率作为影响因素，以正己烷为溶剂、亚麻籽油提取率为指标，在单因素试验的基础上，通过4因素3水平Box-Behnken试验，建立亚麻籽油提取率的二次多项式回归方程，经响应面回归分析得到优化组合条件。结果表明：最佳提取工艺条件为提取温度56℃、提取时间2.2h、液固比8:1(mL/g)、搅拌速度310r/min。在此条件下亚麻籽油提取率为98.12%，与理论值98.28%接近。结论：所得提取条件可靠。

关键词: 亚麻籽, 亚麻籽油, 响应面法, 提取工艺

Abstract: In order to improve the extraction rate of flaxseed oil, response surface methodology was used to optimize the extraction conditions of flaxseed oil using n-hexane as the solvent. The effects of extraction temperature, extraction duration, solid-to-solvent ratio and stirring speed on the extraction rate of flaxseed oil were investigated by one-factor-at-a-time experiments. A quadratic polynomial regression model was fitted using a four-factor, three-level Box-Behnken design and analyzed using response surface methodology to obtain the optimal extraction conditions: temperature 56 ℃, solvent-to-solid ratio 8:1 (mL/g), stirring speed 310 r/min, and extraction time 2.2 h. Under these conditions, the extraction yield of flaxseed oil was 98.12%, closed to the theoretical value of 98.28%. In conclusion, the optimized extraction conditions are reliable.

Key words: flaxseed, flaxseed oil, response surface methodology, extraction process

中图分类号:

TS224.4

龙云飞，王沛佩，杨克迪，文衍宣. 响应面法优化亚麻籽油提取工艺[J]. 食品科学, 2012, 33(14): 45-49.

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