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发明名称
高纯茶多酚提取的新工艺
摘要
一种从茶叶中提取高纯茶多酚的新工艺,用加有助剂NaHSO#-[3]的沸水浸提茶末,经过常规过滤后得到澄清茶汤。用水合硫酸铝作为沉淀剂使茶多酚沉淀完全析出,沉淀用常规过滤分离后,热水洗涤,后用盐酸酸化,最后经萃取,脱溶,干燥而得到高纯茶多酚。提取率达7.8—9%,茶多酚含量高于95%。工艺流程简单,易于工业化生产。$#!
申请公布号
CN1072639C
申请公布日期
2001.10.10
申请号
CN97104751.0
申请日期
1997.04.01
申请人
中国科学院福建物质结构研究所
发明人
姚元根;吴棱;王丽珠;夏继波
分类号
C07C39/10;C07C37/68
主分类号
C07C39/10
代理机构
代理人
主权项
1.一种高纯茶多酚提取的工艺,包括:浸提(2),过滤(3)、(5),沉淀(4),洗涤,酸化(6),萃取(7),脱溶(8),干燥(9)步骤,其特征在于:用加有助剂的沸水从干茶叶末中浸取提出茶多酚,过滤后在滤液中加入水合硫酸铝做沉淀剂,沉淀物经水洗纯化,酸化后,经萃取,脱溶,干燥,得到茶多酚纯品。
地址
350002福建省福州市鼓楼区山头角123号
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