Partial purification of latent polyphenol oxidase from peach (Prunus persica L. Cv. Catherina). Molecular properties and kinetic characterization of soluble and membrane-bound forms.

This paper analyzes the kinetic and structural characteristics of polyphenol oxidase (PPO) from peach cv. Catherina. The PPO was obtained in a latent state in both the soluble and membrane-bound forms, and both forms were activated by acid shock and the detergent SDS. Plant defense is the main function assigned to PPO, which would be activated by the acid… CONTINUE READING