| 响应面法优化麦胚多糖的醇析工艺 |
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| 引用本文： | 桂志远,王学东.响应面法优化麦胚多糖的醇析工艺[J].粮食科技与经济,2011,36(1):54-56. |
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| 作者姓名： | 桂志远 王学东 |
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| 作者单位： | 武汉工业学院,食品科学与工程学院,湖北,武汉,430023 |
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| 摘 要： | 采用水提醇沉法提取麦胚多糖，将提取液浓缩至合适体积再加入不同浓度的乙醇，利用多糖不溶于乙醇的特性将其沉淀出来，采用苯酚一硫酸法测定醇析物中多糖含量，并用相关性检验分析了醇析物质量和多糖含量的相关性，皮尔逊相关系数r=-0．884〉rmin=0．468，说明两者之间存在显著的相关性。为了提高麦胚多糖醇析工艺中多糖含量，通过Box—Behnken中心组合设计（CCD）及响应面分析（RSM），以醇析物为响应值建立了预测多糖含量的二次多项数学模型，优化了多糖醇析工艺，为现实生产提供可靠的理论依据。
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| 关 键 词： | 麦胚多糖 醇析工艺 相关性 响应面 |
Study on Optimal Response Surface Method for Wheat Germ Polysaccharides Alcohol Precipitating Technology |
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| Gui Zhiyuan,Wang Xuedong.Study on Optimal Response Surface Method for Wheat Germ Polysaccharides Alcohol Precipitating Technology[J].Grain Technology and Economy,2011,36(1):54-56. |
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| Authors: | Gui Zhiyuan Wang Xuedong |
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| Institution: | Gui Zhiyuan,Wang Xuedong(College of Food,Wuhan Polytechnic University,Wuhan,Hubei 430023) |
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| Abstract: | Wheat germ polysaccharide(WGP) was extracted by the method of water extracting-alcohol precipitating.Wheat germ extract will be concentrated to appropriate volume,then different concentrations of ethanol was added to precipitate polysaccharide which was insoluble in it.Phenol-sulfuric acid was used to determinate the content of polysaccharide and according to the correlation test,there was a close correlation between the precipitates and WGP.In order to increase the content of WGP,using precipitate as the r... |
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| Keywords: | wheat germ polysaccharide(WGP) alcohol precipitating technology correlation test RSM |
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