title: [Germplasm resources of Polygala tenuifolia and determination of presenegenin in processing products].
abstract: OBJECTIVE
  To research the germplasm resources and the contents of senegenin in processing products of Polygala tenuifolia.
  
  
  METHODS
  The contents of senegenin in wild Polygala tenuifolia and cultivated samples of Polygala tenuifolia were determined by RP-HPLC, and compared.
  
  
  RESULTS
  The contents of senegenin in wild reduce gradually along Shaanxi, Shanxi, Hebei to Dongbei. The contents of senegenin in cultivated three-year samples of three year Polygala tenuifolia from five main place was similar, 0.44%-0.49%. The content of senegenin were 0.44%-0.64% in the wand and 0.03%-0.09% in the residual part of stem, and the content of senegenin in Polygala tenuifolia was more than that in processing products.
  
  
  CONCLUSIONS
  There is a correlation between the content of senegenin in Polygala tenuifolia and ecology environment that show a is inverse proportion with the quality grade, and the contents in the processing products were decreased. Senegenin can be used as a characteristic marker in range. This research provides a reference for search a index for quality control of Radix polygala and its processing products.
authors.affiliation: Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, The College of Life Sciences, Northwest University, Xi'an 710069, China. fff885@126.com
authors.forename: Minfeng
authors.initials: M
authors.lastname: Fang
authors.forename: Zhiling
authors.initials: Z
authors.lastname: Fu
authors.forename: Hongmei
authors.initials: H
authors.lastname: Teng
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Zhang
authors.forename: Shixiang
authors.initials: S
authors.lastname: Wang
authors.forename: Guifang
authors.initials: G
authors.lastname: Zhao
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004777:Environment; D016014:Linear Models; D018514:Plant Structures / Q000737:chemistry / Q000166:cytology; D031801:Polygala / Q000737:chemistry* / Q000166:cytology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014315:Triterpenes / Q000032:analysis*
chemical_list: D014315:Triterpenes; C487713:presenegenin