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Patrick Guilfoile: Thank bacteria for flavorful wine

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Those of us who enjoy wine owe a lot to yeast, which do most of the fermentation and produce most of the alcohol found in wine.

Yet bacteria also play an important role in determining the final flavor of wine. In particular, a microbe called Oenococcus oeni (Oinos is Greek for wine) produces many of the distinctive flavors associated with most red wines.

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