Abstract: Naturally selected yeast ICV-GRE and 71B, malolactic bacteria Lalvin 31, and genetically enhanced yeast
ML01 were compared for biodeacidification of malic acid in production of Vignoles wines. ICV-GRE yeast consumed
18% of malic acid with no lactic acid production. Lalvin 31 added to the wine fermented with ICV-GRE
converted the remainder of the malic acid to lactic acid and consumed some citric acid.