title: [Study on species identification of commercial drug cudraniae tricuspidatae radix et caulis and its medicinal parts].
abstract: OBJECTIVE
  To establish an identification method of Cudrania tricuspidata and Cudrania cochinchinensis, and their medicinal parts, and analyse the species of commercial drug Cudraniae Tricuspidatae Radix et Caulis.
  
  
  METHODS
  TLC and First-order Derivative UV Spectrophotometry were used.
  
  
  RESULTS
  Commercial drugs 5, 6, 7 and 9 belonged to the stem of Cudrania cochinchinensis, commercial drug 1, 2, 3 ,4 and 8 were neither Cudrania tricuspidata nor Cudrania cochinchinensis.
  
  
  CONCLUSIONS
  Cudrania tricuspidata and Cudrania cochinchinensis can be identified by TLC, as well as the medicinal parts. UV Spectrophotometry can't be applied to variety identification but can be used for identifying the medicinal parts. It's more accurate and reliable for identifying Cudrania tricuspidata and Cudrania cochinchinensis, and the medicinal parts by combined using TLC and UV. This study provides a scientific and effective method for species identification and medicinal part analysis of commercial drug Cudraniae Tricuspidatae Radix et Caulis.
authors.affiliation: College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China. liboygg@126.com
authors.forename: Bo
authors.initials: B
authors.lastname: Li
authors.forename: Yu-Yao
authors.initials: YY
authors.lastname: Zhang
authors.forename: Yan-Jun
authors.initials: YJ
authors.lastname: Zhai
mesh_terms: D002855:Chromatography, Thin Layer; D004365:Drugs, Chinese Herbal / Q000032:analysis* / Q000737:chemistry; D029586:Moraceae / Q000737:chemistry* / Q000145:classification*; D018517:Plant Roots / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D011786:Quality Control; D012997:Solvents / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet
chemical_list: D004365:Drugs, Chinese Herbal; D012997:Solvents