title: [Study on new extraction technology and protective effect of hugan buzure granule on liver injury in mice].
abstract: OBJECTIVE
  To study on the new preparation technology of Hugan Buzure granule and to compare protective effect on liver injury in rats by different extraction processes.
  
  
  METHODS
  Volatile oil extraction technology, inclusion condition and ethanol extraction condition were selected by orthogonal experiments. The experiment models of liver injury were induced by carbon tetrachloride, bacillus calmette-guerin (BCG) and plus lipolysaccharides (LPS) in rats, respectively. ALT, AST in serum, and MDA, SOD in liver were measured and the rats were killed to calculate the liver coefficient to evaluate the protective effect of Hugan Buzure granule on experimental injury in rats.
  
  
  RESULTS
  The optimum conditions of volatile oil extraction were 1:12 of solid-liquid ratio, 2 h of soaking time, and 8 h of extracting time. The optimal beta-cyclodextrin inclusion complex condition was as follows: the volatile oils formed complex with the beta-CD in a ratio of 1: 6 and stirring for 1 h at 40 degrees C. The optimum ethanol extraction was as follows: refluxing and extracting 3 times with 10-fold 50% ethanol, 2 h for each time. Compared with the model group, the new technology extraction of Hugan Buzure granule could obviously inhibite the elevation of serum ALT (P < 0.01), AST (P < 0.05) of liver injury induced by BCG + LPS, and elevate the contents of SOD, and obviously inhibite the elevation of serum AST (P < 0.01) of liver injury induced by carbon tetrachloride.
  
  
  CONCLUSIONS
  The new preparation technology was feasible. The new extraction could protect the liver injury in rats, which was better than extraction of current preparation technology.
authors: Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
authors: Tao
authors: T
authors: Wu
authors: Lan
authors: L
authors: Jiang
authors: Aisa
authors: A
authors: Hajiakber
authors: Yuhua
authors: Y
authors: Sun