中草药提取物中单宁(鞣质)的选择性脱除.pdf

___________________________________________________________________________ 草药提取物 单宁（鞣质）的选择性脱除 廖学品 马贺伟 陆忠兵 石碧 ( 四川大学皮革化学与工程教育部重点实验室，四川，成都，610065) 摘 要 用牛皮为原料通过甲醛交联反应制备胶原纤维吸附材料，采用外加单宁的方法研究了 这种吸附材料对双黄莲口服液、银黄注射液及中草药提取物中单宁的选择性吸附能力。结果 表明，胶原纤维对单宁具有明显的竞争吸附能力和吸附选择性，在实验条件下单宁的去除率 达到 97% 以上，而对有效成份吸附率很低。皮胶原纤维吸附材料为中药制剂工艺中单宁的 高选择性脱除提供了一种新的、有效的方法。 关键词 皮胶原纤维；吸附材料；单宁；中草药提取物；吸附选择性 SELECTIVE REMOVAL OF TANNINS FROM EXTRACT OF CHINESE MEDICINAL HERBS LIAO Xue-pin, MA He-wei, LU Zhong-bing, SHI Bi (The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China) Abstract A novel adsorbent was prepared on the basis of collagen fibres of animal skin cross-linked by formaldehyde. Its selective adsorption ability to tannins was extensively investigated. The tannic acid added Shuang Huang Lian oral liquid, tannic acid added Yin Huang inj ection, and tannin contained extracts of Chinese medicinal herbs were used for trials. The experimental results indicated that the collagen fibre adsorbent had excellent adsorption selectivity to tannins. The extent of adsorption of tannins was more than 97%, whilst little of active components in the solutions were retained by the adsorbent. This novel adsorbent can provide a new and effective approach for selective removal of tannins in the extracts or preparations of the Chinese medicinal herbs. 基金项目：中国高校博士点基金资助项目(200206 10010) 通讯联系人(corresponding author) ，E-mail: shibi@，电话: 028 传真: 028 1 ___________________________________________________________________________中国科技论文在线 Keywords Hide collagen fibres, adsorbent, tannin, Ch