Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (2): 66-68.

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Study on the Reaction Between Laccase and 3,4-Dihydroxybenzaldehyde by Microcalorimetry

Wang Tianzhi, Wu Dingquan, Wan Hongwen, Qu Songsheng   

  1. 1. Department of Chemistry, Wuhan University, Wuhan 430072;
    2. Department of Chemistry, Huazhong Normal University, Wuhan
  • Received:1996-08-08 Revised:1996-10-17 Published:1997-04-10 Online:1997-04-10

Abstract: Thermokinetic properties of the reaction between laccase and 3,4-ihydroxyben-zaldehyde have been studied with a microcalorimetry system. The molar reaction enthalpy(ΔrHm), michaelis constant(Km), rate constant(k2), binding energy(ΔG0), activation gibbis free energy(ΔG=)and laccase activity(EA)have been determined. The result has been discussed by the transition state theory.

Key words: laccase, microcalorimetry, thermokinetics