title: [Study on the difference between components in volatile oil of Citrus reticulata before and after being processed].
abstract: OBJECTIVE
  To analyze the change of components in volatile oil of Citrus reticulata before and after being processed.
  
  
  METHODS
  The volatile oil of Citrus reticulata was extracted by steam distillation and comparatively studied by GC-MS.
  
  
  RESULTS
  The content of volatile of Citrus reticulata after being steamed decreased from 1.13% to 1.06%. 34 components was detected in Citrus reticulata, 30 components was detected in the processed Citrus reticulata, 24 components in volatile oil of Citrus reticulata were identified. 15 components in volatile oil of Citrus reticulata before and after being processed were the same, 9 components were not detected after steamed, but there were 9 new kinds being detected. The relative contents of 4 components increased, 10 components decreased.
  
  
  CONCLUSIONS
  There are many differences between the components in the volatile oil of Citrus reticulata before and after being processed and also the content of the components may offer some theoretical evidence for drug property transform and different clinical application.
authors.affiliation: College of Chinese Medical, Guangzhou University of TCM, Guangzhou 510006, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Gao
authors.forename: Xiao-Fei
authors.initials: XF
authors.lastname: Xu
authors.forename: Kang
authors.initials: K
authors.lastname: Chen
authors.forename: Jin-Yu
authors.initials: JY
authors.lastname: Wang
authors.forename: Pei-Xuan
authors.initials: PX
authors.lastname: Huang
mesh_terms: D002957:Citrus / Q000737:chemistry*; D057168:Distillation / Q000379:methods; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D039821:Monoterpenes / Q000032:analysis / Q000737:chemistry; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D013227:Steam
chemical_list: D039821:Monoterpenes; D009822:Oils, Volatile; D010938:Plant Oils; D013227:Steam