title: [The optimum condition on baicalin extraction from Scutellaria baicalensis].
abstract: OBJECTIVE
  To optimize the extraction process of baicalin from Scutellaria Baicalensis Georgi with ethanol.
  
  
  METHODS
  The extraction process of baicalin from Scutellaria Baicalensis Georgi was optimized with the aid of orthogonal experiments.
  
  
  RESULTS
  The optimal parameters were obtained as follows: extracting temperature, extracting time, ethanol concentration and mechanical stirring speed were 80 degrees C, 1 h, 60% and 400 r/min, respectively. The extracting rate of baicalin was 83.90%.
  
  
  CONCLUSIONS
  Comparing ethanol circumfluence, boiling water, ultrasonic wave and semi-bionic on extracting baicalin from Scutellaria baicalensis Georgi, the ethanol circumfluence extraction is better than other technological conditions on extracting baicalin.
authors.affiliation: Hubei Key Lab of Novel Reactor & Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zhou
authors.forename: Ru-an
authors.initials: RA
authors.lastname: Chi
authors.forename: Yuan-xin
authors.initials: YX
authors.lastname: Wu
authors.forename: Xiu-lian
authors.initials: XL
authors.lastname: Ju
authors.forename: Jia
authors.initials: J
authors.lastname: Guo
authors.forename: Qi-mao
authors.initials: QM
authors.lastname: Huang
mesh_terms: D004365:Drugs, Chinese Herbal; D000431:Ethanol; D005419:Flavonoids / Q000302:isolation & purification*; D010936:Plant Extracts / Q000737:chemistry*; D031364:Scutellaria baicalensis / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D010936:Plant Extracts; C499814:Scutellaria baicalensis extract; C038044:baicalin; D000431:Ethanol