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Updated: Mar 21, 2026

Quantifying Yeast Chronological Life Span by Outgrowth of Aged Cells

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Published on: May 6, 2009

Flor Yeast: New Perspectives Beyond Wine Aging.

Jean-Luc Legras¹, Jaime Moreno-Garcia², Severino Zara³

¹SPO, Institut National de la Recherche Agronomique - SupAgro, Université de Montpellier Montpellier, France.

Frontiers in Microbiology

|May 6, 2016

Summary

Flor yeast, crucial for Sherry wine aging, forms biofilms through unique genetic traits. Omics tools reveal how this lifestyle reshapes yeast proteins, offering new ways to control biofilm formation.

Keywords:

-omic tools biocapsules biofilm biofilm management flor yeast immobilization wine

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Published on: October 24, 2016

Area of Science:

Enology
Microbiology
Biochemistry

Background:

White wine production prioritizes aroma preservation and limits oxygen exposure.
Sherry wine aging is an aerobic process reliant on flor yeast (Saccharomyces cerevisiae).
Flor yeast form biofilms (flor or velum) on wine surfaces under nutrient limitation.

Purpose of the Study:

To review current understanding of flor yeast biology using omics tools.
To explore the genetic and metabolic adaptations of flor yeast.
To discuss factors influencing biofilm formation and potential applications.

Main Methods:

Comparative genomics, proteomics, and metabolomics analyses.
Investigation of flor yeast versus non-flor wine yeast strains.
Review of existing literature on biofilm formation factors and strategies.

Main Results:

Omics data highlight unique features of flor yeast differentiating them from other wine yeasts.
Significant proteome remodeling occurs in flor yeast due to their biofilm lifestyle.
Flor yeast exhibit specific genetic and metabolic pathways enabling biofilm formation.

Conclusions:

Flor yeast possess distinct characteristics enabling their role in aerobic wine aging.
Understanding flor yeast proteomics and genomics provides insights into biofilm development.
Potential exists for manipulating biofilm formation for winemaking applications.