We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Utilization of ‘early green harvest’ and non-Saccharomyces cerevisiae yeasts as a combined approach to face climate change in winemaking.
- Authors
Teslić, Nemanja; Patrignani, Francesca; Ghidotti, Michele; Parpinello, Giuseppina Paola; Ricci, Arianna; Tofalo, Rosanna; Lanciotti, Rosalba; Versari, Andrea
- Abstract
Present study aimed to ascertain whether the combination of two factors, i.e., time of harvest and type of yeast, can significantly moderate the effect of climate change on Chardonnay wine composition. In this view, three Chardonnay musts obtained from grapes at different harvest date [technological maturity ‘as control’; delayed harvest; a mixture of ‘early (green) harvest’ with delayed harvest ‘as alternative approach’] and three selected yeast strains [Saccharomyces cerevisiae ‘as control’; hybrid Saccharomyces cerevisiae/Saccharomyces paradoxus; scalar alternative approach with Starmerella bacillaris and hybrid Saccharomyces cerevisiae/Saccharomyces paradoxus] were used to design and compare six different trials, replicated at pilot level (n. total fermentations: 18). Wines were evaluated in terms of sensory and chemical parameters (alcohol, acidity, organic acids, phenolic compounds and glycerol) and results tested by statistical analysis. Although the wine alcohol content decreased at the best by ~ 1.2% v/v, whereas the total acidity increased up to ~ 2.5 g/L, the results from sensory evaluation highlighted that the proposed ‘alternative approach’ may cause excessive acidity and bitterness perception, therefore, further deacidification and fining treatments may be needed. The present approach to reduce the alcohol content of wine and increase its total acidity is simple, inexpensive and applicable in all wineries.
- Subjects
SACCHAROMYCES cerevisiae; YEAST research; CLIMATE change; CHARDONNAY; HARVESTING time
- Publication
European Food Research & Technology, 2018, Vol 244, Issue 7, p1301
- ISSN
1438-2377
- Publication type
Article
- DOI
10.1007/s00217-018-3045-0