Flashcard Study
Natural Food Colours — Card 25 of 33
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Question
Which enzyme is responsible for oxidation of phenolic compounds causing enzymatic browning?
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Answer
C. Polyphenol oxidase (PPO)
Polyphenol oxidase (PPO) catalyzes the oxidation of phenolic compounds into quinones, which polymerize to form brown pigments.
This reaction is responsible for enzymatic browning in:
Apples
Potatoes
Bananas
Flavonoids and other phenolic compounds can be subst...
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