Considerations about the kinetic mechanism of tyrosinase in its action on monophenols: A review
Molecular Catalysis(2022)
Abstract
•Tyrosinase can hydroxylate a broad range of monophenols.•In Type A substrates, the o-quinone evolution generates o-diphenol in the medium.•In Types B, C and D substrates, the evolution does not accumulate o-diphenol.•Hydrogen peroxide transforms Em to Eox and the enzyme has hydroxylating activity.•In presence of monophenols, Michaelis constant for oxygen is very low.
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Key words
Tyrosinase,Polyphenol oxidase,Monophenols,Kinetic mechanism,L-tyrosine
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