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Ethyl esterification of fatty acids of pomegranate seed oil
  
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KeyWord:pomegranate seed oil  fatty acid  ethyl esterification  ethyl ester content
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YU Yaopan, TANG Nianchu, ZHAO Chenwei  
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Abstract:
      With pomegranate seed oil as raw material, anhydrous ethanol as reactant, and sodium hydroxide as catalyst, ethyl esterification of fatty acids of pomegranate seed oil was studied．Based on single factor experiment, the process conditions of ethyl esterification were optimized by orthogonal experiment. The results showed that the optimal process conditions of ethyl esterification were obtained as follows：reaction temperature 75℃，reaction time 2 h，molar ratio of anhydrous ethanol to pomegranate seed oil 8∶1， catalyst dosage 0.5%(based on the mass of pomegranate seed oil).Under these conditions,the ethyl ester content was 95.88%.
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