RT Journal Article
SR Electronic
T1 Impact of Saccharomyces cerevisiae Strain Selection on Malolactic Fermentation by Lactobacillus plantarum and Oenococcus oeni
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP ajev.2019.19061
DO 10.5344/ajev.2019.19061
A1 Vasileios Englezos
A1 Fabrizio Torchio
A1 Paola Vagnoli
A1 Sibylle Krieger-Weber
A1 Kalliopi Rantsiou
A1 Luca Cocolin
YR 2020
UL http://www.ajevonline.org/content/early/2020/01/22/ajev.2019.19061.abstract
AB Nowadays, the simultaneous inoculation of yeast and lactic acid bacteria (LAB) is considered a state-of-the-art strategy to reduce overall vinification time and improve microbiological stability of wines. This inoculation protocol drew interest as to how the selection of yeast and LAB strains could modulate malic acid consumption rate and wine composition. The study presented here addresses the impact of combining Saccharomyces cerevisiae strains (with different fermentation rates and nutrition demands) with Lactobacillus plantarum and Oenococcus oeni strains on malic acid consumption and the production of metabolites. S. cerevisiae strains in pure culture fermentations without LAB inoculation exhibited different patterns of malic acid consumption rate and metabolites production. Simultaneous S. cerevisiae and LAB inoculation influenced the kinetics of lactic acid production and titratable acidity content in a manner dependent on the selected LAB strain. The wines undergoing MLF with L. plantarum ML Primeā¢ finished faster and contained higher levels of L-lactic acid, compared to the respective wines cerevisiae strain used to conduct the alcoholic fermentation. This study reveals new knowledge about the use of L. plantarum in winemaking and shows the effect of S. cerevisiae strains with different enological characteristics, accompanied by LAB or without LAB co-inoculation, on wine composition.