title: [Study on the extraction technology of its flavonoids parts from Tricyrtis maculata growing in Shaanxi Province].
abstract: OBJECTIVE
  To optimize the extraction technology of total flavonoids from Tricyrtis maculata.
  
  
  METHODS
  With UV spectrophotometry as detection method and the content of total flavonoids as index,using single factor experiment and L9 (3(4)) orthogonal test, the optimal condition was deterined.
  
  
  RESULTS
  The best extraction technology was as follows:soaked the medicinal materials for 15 minutes, water-decoted for 3 times, the solid-water ratio was 1:45, 1:40, 1:40 and the decotion time was 1, 0.5, 0.5 h respectively.
  
  
  CONCLUSIONS
  The optimal extraction technology is reasonable and provides a basis for its further study.
authors.affiliation: Shaanxi College of Traditional Chinese Medicine, Xianyang 712046, China. ph.175@63.com
authors.forename: Jing
authors.initials: J
authors.lastname: Sun
authors.forename: Jie-Qiong
authors.initials: JQ
authors.lastname: Liu
authors.forename: Xin-Hua
authors.initials: XH
authors.lastname: Xia
authors.forename: Li-Mei
authors.initials: LM
authors.lastname: Zhang
mesh_terms: D002681:China; D005419:Flavonoids / Q000032:analysis / Q000302:isolation & purification*; D019668:Liliaceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000379:methods*; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D005419:Flavonoids; D012997:Solvents; D014867:Water