What is laccase, and where is it found?

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Multiple Choice

What is laccase, and where is it found?

Explanation:
Laccase is an enzyme—specifically a multicopper oxidase—that can oxidise a range of phenolic components in grape must and wine. It’s produced by fungi, most notably Botrytis cinerea, the organism behind noble rot. Because it’s resistant to sulfur dioxide, laccase can continue to act even when SO2 is present, which is why it’s often discussed in the context of noble rot-infected must. It’s not a yeast used in fermentation, not a pigment in grape skins (those pigments are anthocyanins), and not a tannin preservative.

Laccase is an enzyme—specifically a multicopper oxidase—that can oxidise a range of phenolic components in grape must and wine. It’s produced by fungi, most notably Botrytis cinerea, the organism behind noble rot. Because it’s resistant to sulfur dioxide, laccase can continue to act even when SO2 is present, which is why it’s often discussed in the context of noble rot-infected must. It’s not a yeast used in fermentation, not a pigment in grape skins (those pigments are anthocyanins), and not a tannin preservative.

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