title: [Stable life predection for Psoralea corylifolia by initial average rate stability test].
abstract: OBJECTIVE
  To study the total content change of psoralea and isopsoralea in Psoralea corylifolia under different temperature, and predict its term of validity by initial average rate stability test in order to provide the basis for assessing its quality.
  
  
  METHODS
  The reaction rate constant K was replaced by initial velocity V. According to Arrhenius rule, storage period was obtained at room temperature.
  
  
  RESULTS
  The stable life of P. corylifolia has been determined as 0.53 years.
  
  
  CONCLUSIONS
  The high temperature is not conducive to the stability of the P. corylifolia, which need to store in a dark and cool place.
authors: Institute of Chinese Materia Medica, Henan University, Kaifeng 475004, China.
authors: Jin-Feng
authors: JF
authors: Wei
authors: Zhi-Ping
authors: ZP
authors: Xue
authors: Jie
authors: J
authors: Liu
authors: Wen-Yi
authors: WY
authors: Kang
mesh_terms: D004355:Drug Stability; D029907:Psoralea / Q000737:chemistry*; D013696:Temperature