摘要
The techniques of production rutin were studied.The wet raw dust mixed with 0.4% borax solution after being put for 24h were extracted under reflux 2 time (20min each time) using methanol adjusted pH=8～9 by lime milk as extracting agent.The raffinate was concentrated under vacuum into extract,which was then dissolved in boiling water.The solution was adjusted pH=3 and was crystallized.The refined rutin was obtained after the crystal was dissolved in boiling water and was decolored by acticarbon.It was found that the extraction efficiency was increased and the weakness of hard filter in aqueous extraction was overcome in this technology.
The techniques of production rutin were studied.The wet raw dust mixed with 0.4% borax solution after being put for 24h were extracted under reflux 2 time (20min each time) using methanol adjusted pH=8～9 by lime milk as extracting agent.The raffinate was concentrated under vacuum into extract,which was then dissolved in boiling water.The solution was adjusted pH=3 and was crystallized.The refined rutin was obtained after the crystal was dissolved in boiling water and was decolored by acticarbon.It was found that the extraction efficiency was increased and the weakness of hard filter in aqueous extraction was overcome in this technology.
出处
《中医药学报》
CAS
2004年第4期20-22,共3页
Acta Chinese Medicine and Pharmacology
基金
陕西省高校重点实验室重点科研项目 (0 2JS40 )
关键词
芦丁
槐米
甲醇热提法
Rutin
Flower bud of Sophora japonica L.
Extracting method by hot methanol
