Dynamic changes in microbiota and mycobiota during spontaneous 'Vino Santo Trentino' fermentation

Microbial Biotechnology
Irene StefaniniDuccio Cavalieri

Abstract

Vino Santo is a sweet wine produced from late harvesting and pressing of Nosiola grapes in a small, well-defined geographical area in the Italian Alps. We used metagenomics to characterize the dynamics of microbial communities in the products of three wineries, resulting from spontaneous fermentation with almost the same timing and procedure. Comparing fermentation dynamics and grape microbial composition, we show a rapid increase in a small number of wine yeast species, with a parallel decrease in complexity. Despite the application of similar protocols, slight changes in the procedures led to significant differences in the microbiota in the three cases of fermentation: (i) fungal content of the must varied significantly in the different wineries, (ii) Pichia membranifaciens persisted in only one of the wineries, (iii) one fermentation was characterized by the balanced presence of Saccharomyces cerevisiae and Hanseniaspora osmophila during the later phases. We suggest the existence of a highly winery-specific 'microbial-terroir' contributing significantly to the final product rather than a regional 'terroir'. Analysis of changes in abundance during fermentation showed evident correlations between different species, suggesting ...Continue Reading

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Citations

Oct 7, 2016·Microbial Biotechnology·Francesca De FilippisDanilo Ercolini
Jan 20, 2018·Annual Review of Food Science and Technology·Francesca De FilippisDanilo Ercolini
Mar 25, 2020·Microbial Biotechnology·Youming ShenHaifei Li
May 20, 2017·Frontiers in Microbiology·José M Guillamón, Eladio Barrio
Apr 6, 2017·Frontiers in Microbiology·Irene StefaniniDuccio Cavalieri
May 30, 2017·Frontiers in Microbiology·Horatio H MorganMathabatha E Setati
May 24, 2017·Frontiers in Microbiology·Ignacio BeldaAlberto Acedo

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Datasets Mentioned

BETA
PRJEB7999

Methods Mentioned

BETA
amplicon sequencing
PCR
PCA
Assay
electrophoresis
454 sequencer

Software Mentioned

hylip
phyloseq
blast
MASS r
Roche
phyloseq r
preproc
sfffile
enny
otu

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