摘要
以果汁厂废渣中苹果籽为原料,采用数学统计方法进行苹果籽油提取工艺研究。通过PB、最陡爬坡试验设计、数学统计,确定了影响苹果籽油提取率的主要因素是石油醚添加量、浸提时间、浸提温度及各自的中心点范围。在此研究的基础上,通过BB试验设计、数学统计,建立苹果籽油提取率的二次回归方程。响应面分析、规范形分析得到优化组合条件。研究结果表明:物料粒度40目、含水量6%、石油醚(液固比)7.7 mL/g、浸提时间5.0 h、浸提温度54℃时,苹果籽油提取率最大。该条件下苹果籽油提取率最大估计值为23.69%,实测值为(23.67±0.05)%。
The extraction technology of apple seed oil has been optimized with statistical methodology.The influencing factors and their ranges were investigated using Plackett-Burman and steepest ascent design.It was showed with statistical methodology that petroleum volume,extraction time,and extraction temperature had important influence on the extraction rate of apple seed oil.A polynomial model relating the influencing factors and oil extraction rate was established.A high coefficient of determination（R2=95.48%） indicated good agreement between the experimental data and the predicted values for the extraction rate.Results： The determined optimal extraction parameters are material particle size 40mesh and moisture 6%,petroleum volume（ratio of solid and liquid） 7.7mL/g,extraction time 5h,and extraction temperature 54℃.The extraction rate of apple seed oil reaches（23.67±0.05） %.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2010年第5期68-72,共5页
Journal of the Chinese Cereals and Oils Association
关键词
数学统计方法
苹果籽油
提取
statistical methodology
apple seed oil
extraction
