Question

the pigment responsible for browning of apples is ​

Answer 1

Answer:

There's no pigment involved in browning of apples. It's an enzyme involved in this process, which is PPO (Polyphenol oxidase).

It happens as follows :

When an apple is injured (or cut into pieces), the plant tissue is exposed to oxygen. This triggers an enzyme known as polyphenol oxidase (PPO) to—wait for it—oxidize polyphenols in the apple’s flesh. This results in new chemicals (o-quinones), which then react with amino acids to produce brown-colored melanins.

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Answer 2

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Polyphenol oxidase ..........

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