脱皮方法对大豆胚芽中异黄酮提取率的影响  

Effect of SOybean dehulling on extraction yield of isoflavones from germ

作　　者：毛跟年[1] 张嫱[1] 范金波[1] 张俊涛[1] 

机构地区：[1]陕西科技大学生命科学与工程学院,咸阳712081

出　　处：《食品工业科技》2005年第3期133-135,共3页Science and Technology of Food Industry

摘　　要：以脱皮率、豆粕的品质和大豆胚芽中异黄酮提取率等为评价指标，分别采用干法、湿法对大豆脱皮进行了研究：实验表明，在大豆干法脱皮温度为80℃，烘干后大豆水分含量为8％～10％时，胚芽中异黄酮的提取率最高，为1.241％，且脱皮容易，脱皮率较高：在大豆湿法脱皮过程中，浸泡温度对大豆胚芽中异黄酮提取率有显著性影响；大豆湿法脱皮的最适条件为：浸泡温度30℃、浸泡时间5．5h、浸泡料液比1：3，该条件下脱皮率高，豆粕色泽好，大豆胚芽中异黄酮提取率为1．720％。The soybeans are dehulled by the dry -method and wet -method, respectively, the technical condition of dehulling was optimized on the following basis: difficulties of dehulling and quality of soybean residue and extraction yield of the isoflavones from germ.The orthogonal experiments indicate the best technical conditions as the following: the dry-method, 80℃, water content of the dried soybean is from about 8% to 10%, the isoflavones extraction rate under this condition is 1.241%;wet-method: 30℃, soaking the soybean in water for 3 times for 5.5hours, under this condition the isoflavones extraction rate is 1.720%.

关 键 词：脱皮 大豆胚芽 大豆异黄酮 提取率 

分 类 号：TS210.4[轻工技术与工程—粮食、油脂及植物蛋白工程]