由郑州工业大学副教授蒋元力发明的采用超滤膜——离子沉淀法提取高纯茶多酚的新工艺,日前在郑州通过了河南省科委组织的专家鉴定。茶多酚是以茶儿为主体的多酚类物质,一般在茶叶中含量为12%-35%,是国际上近年来兴起的一种天然食品抗氧剂。茶多酚在油脂、食品、医药、日化等领域具有广阔的应用前景。目前国内外提取茶多酚主要采用溶剂法和沉淀法,但各 The new process of extracting high-purity tea polyphenols by using ultrafiltration membrane-ion precipitation method, invented by Jiang Yuanli, associate professor of Zhengzhou University of Technology, passed the experts appraisal organized by Henan Science and Technology Commission in Zhengzhou recently. Tea polyphenols are tea-based polyphenols, and their content in tea is generally 12%-35%. It is a natural food antioxidant that has emerged in recent years in the world. Tea polyphenols have broad application prospects in the fields of oils, foods, medicines, and daily chemicals. At present, the extraction of tea polyphenols at home and abroad is mainly based on solvent method and precipitation method.