Vinylphenol reductase explained

Vinylphenol reductase is an enzyme that catalyses the reaction :

4-vinylphenol + NAD⁺ + 3 H⁺ ⇔ 4-ethylphenol + NADH

It is found in Brettanomyces bruxellensis,^[1] a yeast responsible of the presence of ethyl phenols in wine formed from p-coumaric acid.^[2]

See also

• Wine chemistry
• Yeast in winemaking

External links

• Vinylphenol reductase on MetaCyc

Notes and References

1. Tchobanov I, Gal L, Guilloux-Benatier M, Remize F, Nardi T, Guzzo J, Serpaggi V, Alexandre H . Partial vinylphenol reductase purification and characterization from Brettanomyces bruxellensis . FEMS Microbiology Letters . 284 . 2 . 213–7 . July 2008 . 18576949 . 10.1111/j.1574-6968.2008.01192.x . free .
2. Chatonnet P, Dubourdie D, Boidron JN, Pons M . The origin of ethylphenols in wines. . Journal of the Science of Food and Agriculture . 1992 . 60 . 2 . 165–78 . 10.1002/jsfa.2740600205 . 1992JSFA...60..165C .