title: [Study on the technics of adsorption and purification of baicalin by different macroporous resins].
abstract: OBJECTIVE
  To ascertain the fittest technical parameters by studying the application of macroporous resins used to purify active components of baicalin.
  
  
  METHODS
  To evaluate the ability of adsorption and re-adsorption of macroporous resins selected, the statical and dynamic adsorption-readsorption durations were also investigated to select the optimum macroporous resins, with the content of flavonoids as the standard.
  
  
  RESULTS
  The optimum macroporous resins was HPD-100. In the adsorption cours, the ratio between the amount of medicinal materials and the volume of macroporous resins was 3.0 and there was no more absorbed when the ratio was 12.5; the optimum ethanol concentration was 50% in readsorption duration.
  
  
  CONCLUSIONS
  HPD-100 is the optimum macroporous resin to purify bailcalin and enhance its refined rate.
authors.affiliation: College of animal science and technology, Southwest university, Chongqing 400715, China. Lixiaomi662@sina.com
authors.forename: Xiao-Min
authors.initials: XM
authors.lastname: Li
authors.forename: Xuan
authors.initials: X
authors.lastname: Wu
authors.forename: Zhong-Liang
authors.initials: ZL
authors.lastname: Xiong
authors.forename: Jin-Hua
authors.initials: JH
authors.lastname: Ma
authors.forename: Zhou-Fu
authors.initials: ZF
authors.lastname: Zhu
mesh_terms: D000327:Adsorption; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D000431:Ethanol / Q000737:chemistry; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D010946:Plants, Medicinal / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry*; D031364:Scutellaria baicalensis / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013678:Technology, Pharmaceutical / Q000379:methods*
chemical_list: D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D012117:Resins, Synthetic; C038044:baicalin; D000431:Ethanol