title: [Study on Chemical Constituents of Peanut Hull].
abstract: OBJECTIVE
  To investigate the chemical constituents of peanut hull.
  
  
  METHODS
  Several chromatography methods such as silica gel and Sephadex LH-20 combined with recrystallization were applied to isolate the compounds. Based on spectrum technologies (MS,1H-NMR and 13C-NMR) and physico-chemical methods, structures of isolated compounds were identified.
  
  
  RESULTS
  Twelve compounds were isolated and elucidated as luteolin (1), diosmetin (2), 5,7,3',4'-tetrahydroxy-8-prenyflavone (3),5,7,3'-trihydroxy-4'- methoxy-8-prenylflavone(4), eriodicrtyol (5), racemoflavone (6), hydnocarpin (7), 5,7-dihydroxy chromone (8), 5-hydroxy-chromone- 7-O-β-D-glucoside (9), ferulic acid (10), β-sitosterol (11) and daucosterol(12).
  
  
  CONCLUSIONS
  Except compounds 1, 5 and 8, all compounds are obtained from peanut hull for the first time.
authors.forename: Ai-xue
authors.initials: AX
authors.lastname: Zuo
authors.forename: Yun
authors.initials: Y
authors.lastname: Sun
authors.forename: Shao-xiang
authors.initials: SX
authors.lastname: Qian
authors.forename: Gao-xiong
authors.initials: GX
authors.lastname: Rao
mesh_terms: D010367:Arachis / Q000737:chemistry*; D003373:Coumaric Acids; D005419:Flavonoids; D047311:Luteolin; D064209:Phytochemicals / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry*; D012855:Sitosterols
chemical_list: D003373:Coumaric Acids; D005419:Flavonoids; D064209:Phytochemicals; D012855:Sitosterols; C025473:gamma-sitosterol; C004999:ferulic acid; D047311:Luteolin; C039602:diosmetin; C011015:lyoniside