Abstract

We report the first polyphasic characterization of native Saccharomyces cerevisiae in order to selectcandidate strains for the design of starter cultures tailored for Apulian sparkling wines obtainedfrom local grape variety. In addition, it is the first survey in our region that propose the selection ofautochthonous starter cultures for sparkling wine i) including a preliminary tailored genotypic andtechnological screening, and ii) monitoring analytical contribution during secondary fermentation interms of volatile compounds (VOCs). Furthermore, we exploit the potential contribute ofautochthonous cultures throughout the productive chain, including the possible improvement ofbase wine. One representative strain from each cluster was characterized i) for tolerance to abioticand biotic stressors peculiar of sparkling wine fermentation, ii) for the performances in base wineproduction, and iii) for the aptitudes to promote in-bottle secondary fermentation in white and rosésparkling wines, both obtained from Apulian grape varieties. Genetic characterization led to group164 S. cerevisiae in 16 genetic clusters based on interdelta profiles. Stress tolerance assays shown acertain correlation with fermentative attitude. Our evidences demonstrated a different fermentativebehavior and release of VOCs of the different strains in association with primary and secondaryfermentations and as function of wine and rosé sparkling wine. Furthermore, performances inwhite/rosé sparkling wines have been found to be strain-dependent characters. Overall, we proposedifferent strains as biotechnological resources suitable to improve the quality of regional sparklingwines and to provide a driver of innovation/segmentation in the market.

Autore Pugliese

• Grieco Francesco

Tutti gli autori

• C. Garofalo; C. Berbegal; F. Grieco; M. Tufariello; G. Spano; V. Capozzi

Titolo volume/Rivista

International journal of food microbiology

Anno di pubblicazione

2018

ISSN

0168-1605

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile