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。
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 （mlJg）, 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.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第14期45-49,共5页
Food Science
关键词
亚麻籽
亚麻籽油
响应面法
提取工艺
flaxseed
flaxseed oil
response surface methodology
extraction process
