| 响应面法优化脱脂米糠植酸提取工艺 |
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| 引用本文： | 张丙华,张晖,王立,郭晓娜. 响应面法优化脱脂米糠植酸提取工艺[J]. 中国油脂, 2010, 35(4) |
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| 作者姓名： | 张丙华 张晖 王立 郭晓娜 |
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| 作者单位： | 江南大学,食品学院,江苏,无锡,214122 |
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| 摘 要： | 利用响应面分析法优化了脱脂米糠中植酸的提取工艺条件,建立了植酸提取的二次多项式数学模型。在单因素试验基础上,选择pH、液料比、提取时间和提取温度为自变量,植酸得率和残渣蛋白质量为响应值,响应面优化得出最佳工艺条件为:pH3.9,液料比9∶1,提取时间4.4h,提取温度50℃。在最佳工艺条件下,植酸得率为5.27%,残渣蛋白质量为1.4034g(10g原料脱脂米糠)。在响应面优化工艺的基础上,选择了一浸一洗的浸提方式,并利用阴、阳离子交换树脂纯化了植酸粗溶液,浓缩得到了50%植酸溶液,植酸纯度为94.72%。
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| 关 键 词： | 脱脂米糠 植酸 响应面法 |
Optimization of extraction technology of phytic acid from defatted rice bran by response surface methodology |
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| ZHANG Binghua,ZHANG Hui,WANG Li,GUO Xiaona. Optimization of extraction technology of phytic acid from defatted rice bran by response surface methodology[J]. China Oils and Fats, 2010, 35(4) |
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| Authors: | ZHANG Binghua ZHANG Hui WANG Li GUO Xiaona |
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| Affiliation: | ZHANG Binghua,ZHANG Hui,WANG Li,GUO Xiaona(School of Food Science , Technology,Jiangnan University,Wuxi 214122,Jiangsu,China) |
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| Abstract: | Response surface methodology was used to optimize the extraction technology of phytic acid from defatted rice bran,and a quadratic equation model for phytic acid extraction was built.Based on the single-factor test,pH,ratio of liquid to raw material,extraction time and extraction temperature were selected as the independent variables,and the dependent variables were phytic acid yield and protein content of the residual.The optimum conditions were found as follows:pH 3.9,ratio of liquid to raw material 9:1,e... |
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| Keywords: | defatted rice bran phytic acid response surface methodology |
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