title: [Study on extraction total flavonoids in Epimedium koreanum using high pressure technology].
abstract: OBJECTIVE
  To provide a modern method for extraction and separation total flavonoids in Epimedium koreanum.
  
  
  METHODS
  Using high pressure technology extracts total flavonoids in E. koreanum, and comparing with counter-current extraction with reflux. The total flavonoids contents is determined by UV-VIS.
  
  
  RESULTS
  The extraction efficiency is 9.67% and taking 5 min by high pressure method, using reflux, is 6.14% and 4 h respectively.
  
  
  CONCLUSIONS
  The method of high pressure is high efficiency and saving time, which have extensive application in the extraction of Traditional Chinese Medicine.
authors.affiliation: Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. chunmingliu2000@yahoo.com.cn
authors.forename: Chun-Ming
authors.initials: CM
authors.lastname: Liu
authors.forename: Jun-Jie
authors.initials: JJ
authors.lastname: Zhu
authors.forename: Shou-Qin
authors.initials: SQ
authors.lastname: Zhang
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Liu
mesh_terms: D034181:Epimedium / Q000737:chemistry*; D005419:Flavonoids / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D013678:Technology, Pharmaceutical / Q000379:methods*
chemical_list: D005419:Flavonoids