碱性过氧化氢法提取豆渣半纤维素的研究  

Extracting Hemicellulose from Soybean Dregs by Alkaline Peroxide

作　　者：王文侠[1,2] 宋春丽[1,2] 张晓静[1,2] 张慧君[1,2] 

机构地区：[1]齐齐哈尔大学生命学院 [2]齐齐哈尔大学农产品加工黑龙江省普通高校重点实验室,齐齐哈尔161006

出　　处：《中国粮油学报》2010年第12期117-121,共5页Journal of the Chinese Cereals and Oils Association

基　　金：黑龙江省科技厅攻关研究资助(GA06B408-2-1);黑龙江省教育厅资助(1151gzd23)

摘　　要：大豆半纤维素具有调节血脂及降低胆固醇、改善血糖生成反应、改善大肠功能及减低营养素利用率等功能。本研究采用碱性过氧化氢提取剂提取豆渣中的半纤维素。首先对豆渣半纤维素提取率的影响因素进行了研究,在其基础上,采用L9(34)正交试验对半纤维素的提取条件进行了优化。试验结果表明,豆渣半纤维素的最适提取条件为:H2O2体积分数为1.8%、加碱量3%,料液比1∶25(m/V),提取温度60℃,提取时间4 h。在此最佳提取条件下,豆渣半纤维素的提取率可高达38.47%。Soybean hemicellulose has many functions,such as regulating blood fat,lowering cholesterol,improving glucogenesis reaction and intestine function,and reducing nutrient utilization.Extracting hemicellulose from soybean dregs was studied by alkaline peroxide treatment.The effects of factors on the yield of hemicellulose were studied respectively.Based on single factor results,an orthogonal experiment was designed to optimize the hemicellulose extraction technology.Results： The optimum extraction conditions are hydrogen peroxide concentration 1.8%,sodium hydrate concentration 3%,ratio of substrate/water 1 ∶ 25,extraction temperature 60 ℃ and time 4 h.Under these optimal conditions,the yield of hemicellulose reaches 38.47%.

关 键 词：豆渣 半纤维素 过氧化氢 碱提 

分 类 号：TS214.2[轻工技术与工程—粮食、油脂及植物蛋白工程]