响应面分析法优化芋头多糖的脱色工艺  

Optimization of Decolorization Technology of Taro Polysaccharides by Response Surface Methodology

作　　者：都凤华[1] 刘楠楠 DU Feng-hua, LIU Nan-nan(School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, Jilin, Chin)

机构地区：[1]吉林农业大学食品科学与工程学院,吉林长春130118

出　　处：《食品研究与开发》2018年第16期115-120,共6页Food Research and Development

摘　　要：为研究芋头多糖的脱色工艺条件,以多糖脱色率和多糖保留率为考察指标,比较柱状活性炭、颗粒活性炭、白陶土3种脱色剂的脱色效果,确定最优脱色剂,并通过单因素和响应面试验,优化脱色条件。结果表明,白陶土脱色效果优于其他两种脱色剂。以白陶土作为芋头多糖的脱色剂,其最佳工艺条件为:白陶土添加量5.8%,脱色温度50℃,脱色时间27.5 min,在最佳工艺下,多糖脱色率为87.66%,而多糖保留率可达96.98%。To study of decoloring process conditions of taro polysaccharide based on decoloring rate and polysaccharide retention as examining index,compare columnar activated carbon,granular activated carbon,kaolin clay decoloring effect of three kinds of decolorizing agent to determine the optimum decoloring agent,and through the single factor and response surface test to determine the optimum decoloring conditions. The results showed that the decolorizing effect of kaolin clay was better than the other two decolorizing agents. With kaolin clay as decoloring agent of taro polysaccharide,the optimum technological conditions for：the amount of kaolin clay was 5.8 %,decolorization temperature was 50 ℃,decolorization time was 27.5 min,under the optimum process,the polysaccharide decoloration rate was 87.66 %,and the polysaccharide retention rate can reach96.98 %.

关 键 词：芋头 多糖 脱色工艺 白陶土 响应面法 

分 类 号：TS201.2[轻工技术与工程—食品科学]