Journal of Enzyme Inhibition and Medicinal Chemistry 2003-Feb
Kinetics of inhibition of polyphenol oxidase mediated browning in apple juice by beta-cyclodextrin and L-ascorbate-2-triphosphate.
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Polyphenol Oxidase (PPO) mediated browning in raw fruits and vegetables is a major cause of quality deterioration in fruits and vegetables and derived food products. Here the rate of browning reaction in apple juice treated individually and in combination (1:1) of beta-Cyclodextrin (beta-CD) and L-Ascorbate-2-triphosphate (L-AATP) is described. It was observed that the rate of quinone formation can be minimized using a combination of beta-CD and L-AATP as compared to individual treatment with these agents. Kinetic experiments revealed that both compounds are non-competitive inhibitors of PPO.