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Mushroom tyrosinase (MT) was considered a good model for studying the inhibition, activation, and mutation of tyrosinase as the key enzyme of melanogenesis. In the present study, the activity, structure, reduction, and stability of native and modified enzymes were investigated after the modification of MT carboxylic residues by the Woodward reagent K (WRK). The relative activity of the sole enzyme...
The destruction of chitosan in a solution, which served as a cathode in an atmospheric pressure direct-current discharge, has been studied. The dependence of the viscosity-average molecular weight of chitosan on the treatment time has been obtained, and the effective degradation rate constants and the plasma-chemical yields of chain scission have been found at discharge currents of 15, 30, and 45...
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