固体酸催化水解糖苷型大豆异黄酮  

Hydrolyzation of soybean isoflavone glucoside by solid acid catalyst

作　　者：李珊珊[1] 吴彩娟[1] 苏宝根[1] 任其龙[1] 

机构地区：[1]浙江大学二次资源化工国家专业实验室,杭州市310027

出　　处：《中国油脂》2004年第9期28-30,共3页China Oils and Fats

摘　　要：以固体酸为催化剂 ,在固定床中将糖苷型大豆异黄酮水解成大豆异黄酮苷元。研究了温度、进料配比以及接触时间对游离型异黄酮转化率的影响。结果表明 ,溶剂与原料比例为 1∶11左右为宜 ,甲醇与水的比例以 1∶2为好 ,温度在 6 0～ 70℃。通过固定床两次水解 ,糖苷型异黄酮转化率可达 90 %。Soybean isoflavone glucoside can be hydrolyzed into isoflavone aglucone with methanol-water in a fixed bed filled with solid acid catalyst. The effects of temperature ,ratio of methanol to water,contact time on the percent conversion of isoflavone were studied.The optimum conditions are as following:ratio of solvent to extraction material is 1∶11, ratio of methanol to water is 1∶2, temperature of hydrolyzation is between 60℃ and 70℃.The conversion of isoflavone is as high as 90%, when hydrolyzed twice with methanol-water in a fixed bed filled.

关 键 词：固体酸 糖苷型 水解 转化率 酸催化 固定床 溶剂 大豆异黄酮 游离型 左右 

分 类 号：O629[理学—有机化学]