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Laccase

One of the oxidases; see there.

Naturally occurring enzymes (phenol oxidases) that can trigger the oxidation of phenolic compounds on contact with oxygen and thus contribute to the undesirable browning of the grape must. The grape's own species tyrosinase (a copper-containing enzyme that catalyses the oxidation of phenols to quinones ) is largely removed after pressing when the must...

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The world's largest Lexicon of wine terms.

26,668 Keywords · 47,043 Synonyms · 5,314 Translations · 32,000 Pronunciations · 239,306 Cross-references
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