title: [Synthesis and optimize reaction conditions of chlorogenic acid artificial antigen].
abstract: OBJECTIVE
  To synthesize artificial antigen of the chlorogenic acid (CGA), a constituent in Traditional Chinese Medicine, then optimize the reaction conditions, so that to supply the basis in material and technique for study on Chinese medicine injection of adverse reactions in-depth.
  
  
  METHODS
  The complete antigen of chlorogenic acid (CGA-BSA) was synthesized by CGA coupled to carrier protein bovine serum albumi (BSA) using carbodiimide method. We used the orthogonal design test to optimize reaction conditions and used the MALDI-TOF-MS and UV motheds to determine the coupling rate of the CGA-BSA.
  
  
  RESULTS
  The coupling rate were 20 and 18.8, counting by MALDI-TOF-MS and UV, respectively; while the best reaction conditions were NHS: CGA, EDC: CGA, CGA: BSA were 4: 1, 1: 1, 200: 1, respectively, with the pH 9.
  
  
  CONCLUSIONS
  The complete antigen is preparated successfully. Which supplied the basis to advanced study of correlation.
authors.affiliation: Dept of Clinical Pharmacology, General Hospital of People Liberation Army, Beijing 100853, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Lin
authors.forename: Ping
authors.initials: P
authors.lastname: Liu
authors.forename: Jianxun
authors.initials: J
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Lihua
authors.initials: L
authors.lastname: Mu
authors.forename: Yuan
authors.initials: Y
authors.lastname: Hu
mesh_terms: D052179:Antigens, Plant / Q000737:chemistry*; D002726:Chlorogenic Acid / Q000138:chemical synthesis / Q000737:chemistry*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013056:Spectrophotometry, Ultraviolet
chemical_list: D052179:Antigens, Plant; D002726:Chlorogenic Acid