Vinylphenol reductase is an enzyme that catalyses the reaction :
4-vinylphenol + NAD+ + 3 H+ ⇔ 4-ethylphenol + NADH
It is found in Brettanomyces bruxellensis, a yeast responsible of the presence of ethyl phenols in wine formed from p-coumaric acid.
See also Wine chemistry Yeast in winemaking
References
External links Vinylphenol reductase on MetaCyc