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Optimization of extracting Zanthoxylum bungeanum resin by matrix analysis method
  
DOI：10.12166/j.zgyz.1003-7969/2020.10.020
KeyWord:Zanthoxylum bungeanum resin  Zanthoxylum bungeanum cake  ultrasound extraction  pungency intensity  matrix analysis method  comprehensive equilibrium method
FundProject:四川省科技厅重点研发项目（2018SZ0064）
Author NameAffiliation
JIANGLingyan College of Food Science,Sichuan Agricultural University, Yaan 625014, Sichuan, China 
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Abstract:
      The resin was extracted by ultrasound extraction method from the Zanthoxylum bungeanum cake.The effects of raw material particle size, ratio of solid to liquid, ethanol volume fraction, ultrasonic time and ultrasonic power on the extraction rate and pungency intensity of Z.bungeanum resin were investigated. The comprehensive equilibrium method and matrix analysis were employed to determine the optimal process conditions. The results showed that the matrix analysis and comprehensive equilibrium method had the same result, and the optimal extraction conditions were obtained as follows:raw material particle size 100 meshes, ratio of solid to liquid 1∶ 12,ethanol volume fraction 55%, ultrasonic time 20 min and ultrasonic power 240 W. Under these conditions, the extraction rate and pungency intensity of Z. bungeanum resin was 25.05% and grade 6, respectively.
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