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Journal of Tea Science ›› 2011, Vol. 31 ›› Issue (4): 333-340.doi: 10.13305/j.cnki.jts.2011.04.001

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Study on Expression Conditions of EGCG-O-Methyltransferase in Recombinant Escherichia coli Bacteria

FEI Dong-mei1,2, LIN Zhi1*, LU Hai-peng1, ZHANG Yue1, TAN Jun-feng1, GUO Li1   

  1. 1. Key Laboratory of Tea and Beverage Crops Processing and Quality Control, Ministry of Agriculture; Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2011-01-10 Revised:2011-02-28 Online:2011-08-15 Published:2019-09-09

Abstract: EGCG3"Me could be produced from EGCG catalyzed by EGCG-O-Methyltransferase. Taken the yield of EGCG3"Me as main index, the present study focused on the producing conditions of EGCG-O-Methyltransferase induced by IPTG in recombinant E. coli bacteria. Results showed that the optimum producing conditions were as follows: the concentration of IPTG was 0.05mmol/L, the induction time was 20h, the initial pH of medium was 7.0 and the induction temperature was 20℃.

Key words: EGCG-O-Methyltransferase, recombinant Escherichia coli, expression conditions

CLC Number: