Details

Autor(en) / Beteiligte

• Contreras-Ruiz, Alba
• Alonso-del-Real, Javier
• Barrio, Eladio
• Querol, Amparo

Titel

Saccharomyces cerevisiae wine strains show a wide range of competitive abilities and differential nutrient uptake behavior in co-culture with S. kudriavzevii

Ist Teil von

• Food microbiology, 2023-09, Vol.114, p.104276-104276, Article 104276

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The wine industry has implemented complex starters with multiple yeast species as an efficient method to improve certain wine properties. Strains’ competitive fitness becomes essential for its use in such cases. In the present work, we studied this trait in 60 S. cerevisiae strains from different origins, co-inoculated with a S. kudriavzevii strain, and confirmed it to be associated with the strains' origin. To gather deeper knowledge about the characteristics of strains with highly competitive ability versus the rest, microfermentations using representative strains from each group were performed and the carbon and nitrogen sources uptake was analysed. Our results demonstrate that despite wine strains being the subclade with the highest competitive ability, they present a wide range of behaviors as well as nutrient uptake dynamics, which points to a heterogeneous nature of domestication processes. An interesting strategy was observed in the highly competitive strains (GRE and QA23), the nitrogen sources uptake in the competition was accelerated and the sugar fermentation was slowing despite the fermentation finish at the same time. Therefore, this competition study, using particular combinations of strains, expands the knowledge in the field of the usage of mixed starters in wine manufactured products. •The wine strains subclade showed the highest competitive ability in cocultures with S. kudriavzevii.•In cocultures with the highly competitive S. cerevisiae strains, uptake of nitrogen sources was accelerated.•In cocultures with the highly competitive S. cerevisiae strains was observed a slowing in the sugar fermentation in the first stapes.•S. cerevisiae wine strains showed the highest competitive ability in cocultures, accelerated the uptake of nitrogen and slowed the sugar fermentation