title: [Study on micro-wave processed of Psoralea corylifolia with uniform and regression analysis].
abstract: OBJECTIVE
  To optimize the herb processing process for the total contains of psoralen and isopsoralen and the rate of extract in Psoralea corylifolia by micro-wave herb processing.
  
  
  METHODS
  The contains of psoralen and isopsoralen was obtained by HPLC. The micro-wave herb processing process was optimized by the way of uniform design and contour map.
  
  
  RESULTS
  The optimum process was:20% as salt concentration, 4h as immerse time, micro-wave strength as strong, 270 seconds as micro-wave time. The absolute error of the predicted value from the models were smaller than 6% and 0. 3% respectively.
  
  
  CONCLUSIONS
  The regression models are notable and reasonable, which can forecast results precisely.
authors.affiliation: Liaoning Traditional Chinese Medicine University, Shenyang 110032, China.
authors.forename: Yan-hua
authors.initials: YH
authors.lastname: Guo
authors.forename: Tian-zhu
authors.initials: TZ
authors.lastname: Jia
authors.forename: Guei-mei
authors.initials: GM
authors.lastname: Lin
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D005638:Fruit / Q000737:chemistry; D011564:Furocoumarins / Q000032:analysis; D008872:Microwaves; D010946:Plants, Medicinal / Q000737:chemistry*; D029907:Psoralea / Q000737:chemistry*; D012044:Regression Analysis; D015203:Reproducibility of Results; D013678:Technology, Pharmaceutical / Q000295:instrumentation / Q000379:methods*