Oenococcus oeni Lifestyle Modulates Wine Volatilome and Malolactic Fermentation Outcome.

Autor:	Tofalo R; Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy., Battistelli N; Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy., Perpetuini G; Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy., Valbonetti L; Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy., Rossetti AP; Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy., Perla C; Dalton Biotecnologie s.r.l., Spoltore, Italy., Zulli C; Orsogna Winery, Orsogna, Italy., Arfelli G; Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy.
Jazyk:	angličtina
Zdroj:	Frontiers in microbiology [Front Microbiol] 2021 Sep 28; Vol. 12, pp. 736789. Date of Electronic Publication: 2021 Sep 28 (Print Publication: 2021).
DOI:	10.3389/fmicb.2021.736789
Abstrakt:	In this study, nine Oenococcus oeni strains were tested for their ability to adhere to polystyrene using mMRS and wine as culture media. Moreover, planktonic and biofilm-detached cells were investigated for their influence on malic acid degradation kinetics and aroma compound production. Three strains were able to adhere on polystyrene plates in a strain-dependent way. In particular, MALOBACT-T1 and ISO359 strains mainly grew as planktonic cells, while the ISO360 strain was found prevalent in sessile state. The strain-dependent adhesion ability was confirmed by confocal laser scanning microscopy. Planktonic and biofilm detached cells showed a different metabolism. In fact, biofilm-detached cells had a better malic acid degradation kinetic and influenced the aroma composition of resulting wines, acting on the final concentration of esters, higher alcohols, and organic acids. Oenococcus oeni in biofilm lifestyle seems to be a suitable tool to improve malolactic fermentation outcome, and to contribute to wine aroma. The industrial-scale application of this strategy should be implemented to develop novel wine styles. Competing Interests: CZ is employed by Orsogna winery and Carlo Perla by Dalton Biotecnologie s.r.l. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2021 Tofalo, Battistelli, Perpetuini, Valbonetti, Rossetti, Perla, Zulli and Arfelli.)
Databáze:	MEDLINE
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