On the other hand, polyphenoloxidase
enzyme activity were increased.
The variation of different enzymatic activities like Amylase, Protease, Peroxidase, Succinate dehydrogenase, Polyphenoloxidase
and Nitrate reductase of eighteen marine macroalgae as per their class has been shown in Fig.
13] Cano P, Marin MA and C Fuster Effects of some thermal treatments on polyphenoloxidase
and peroxidase activities of banana (Musa cavendishii, var.
1989) has also observed that the enzymatic darkening in fresh cucumber fruits might has been linked to the peroxidase enzymatic activity and by a form of polyphenoloxidase
present mainly in the skin.
The control of the activity of Peroxidase (POD) and polyphenoloxidase
(POP) is of great importance in the processing of fruits, vegetables, and its products [22,23,24].
Avocado and avocado products are poorly stable products because of their polyphenoloxidase
It was suggested that the resistance of colored seed coats to deterioration was a result of impermeably thick seed coats created by the oxidation of phenolic compounds by polyphenoloxidase
The decrease in the total phenolic content could be due to the oxidation of phenolic level by polyphenoloxidase
that characterizes these stages of maturity .
Bulk quantities of mushroom powder and polyphenoloxidase
enzymes present in raw mushrooms can influence dough rheology.
Furthermore, treatment with NO possibly inhibited enzymes activity such as polyphenoloxidase
in stored products that caused to inhibit the oxidation of phenols .
Previous studies indicated that storing potatoes in carbon dioxide-enriched atmospheres reduced polyphenoloxidase
The hyper UV-C dose probably caused irreversible membrane damage and could have affected the activity of the enzyme polyphenoloxidase
(PPO) resulting in the visible browning of the fruit's surface.