1.
Chinese Journal of Information on Traditional Chinese Medicine
;
(12)2006.
Article
in Chinese
| WPRIM
| ID: wpr-579438
ABSTRACT
Objective To optimize the extraction process of total flavonoids in Hypericum perforatum L.. Methods The concentration and volume of alcohol, extraction time and frequency were systematically studied by the total flavonoids as the marker. Results The more effective way to extract total flavones was extraction with 8 times amount of 70% alcohol under reflux for 3 times and 2 h for each time. Conclusion This method obtains more effective components. It is stable and reliable.