title: [Comparative analysis of volatile fractions in Polygonati rhizoma and its processed products by GC-MS].
abstract: OBJECTIVE
  To conduct comparative study on the volatile components from Polygonati Rhizoma during processing.
  
  
  METHODS
  Volatile oil was obtained from Polygonati Rhizoma by steam distillation (SD). Volatile components were concentrated by a purge and trap-thermal desorption (P&T-TD) method, and analyzed with gas chromatography-mass spectrometry (GC-MS), which were comparative by analyzed with the method of SD-GC-MS simultaneously.
  
  
  RESULTS
  The change in quantity and quality of volatile components in pre and post processed Polygonati Rhizoma were observed. Fifty-one compounds were checked out with SD-GC-MS, while 11 compounds with P&T-TD-GC-MS.
  
  
  CONCLUSIONS
  This study is useful to illustrate the mechanism of decreasing toxicity and stimulating components after being processed.
authors.affiliation: Key Laboratory of Bamboo and Rattan Science and Technology of State Forestry Administration, International Center for Bamboo and Rattan, Beijing 100102, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Wang
authors.forename: Yongde
authors.initials: Y
authors.lastname: Yue
authors.forename: Feng
authors.initials: F
authors.lastname: Tang
authors.forename: Wuqun
authors.initials: W
authors.lastname: Tao
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009822:Oils, Volatile / Q000032:analysis*; D031384:Polygonatum / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile