Since Pasteur's work, several types of microorganisms (including yeast and some bacteria) have been used to break down pyruvic acid to produce ethanol in beer brewing and wine making. The other by ...

Fermentation is the fundamental process in winemaking through which grapes are made into wine. Yeast fermentation is key to ...

When you taste a wine or beer that calls up the flavor of rose or honey think phenylethyl acetate; it’s a by-product of the yeast cells that ... to him that the best way to engineer desirable ...