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Application comparision of industrial enzymatic and chemical transesterification in oil modification
  
DOI：10.12166/j.zgyz.1003-7969/2020.05.016
KeyWord:enzymatic transesterification  chemical transesterification  oil modification  trans fatty acid
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WEN Xiaorong ZHOU Erxiao YUAN Yuan DUAN Xiufeng LIANG Chunsong Myande Group Co., Ltd., Yangzhou 225127,Jiangsu, China 
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Abstract:
      Transesterification (TE) was one of the important oil modification methods, and no trans fatty acid was produced during the modification process. There were two main transesterification methods, industrial enzymatic TE and chemical TE, both of them had high requirements for phosphorus content, water content and peroxide value of feed oil, and the oil produced by these two TE methods were quite similar. Normally, chemical TE were operated by batch with basic catalyst. Differently, Enzymatic IE could realize continuous production by several immobilized beds in series, but the enzyme needed to be replaced in a certain time. The method selection of chemical or enzymatic TE needed overall consideration of investment costs, operation costs and operation stability.
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