terclim by ICS banner
IVES 9 IVES Conference Series 9 IMPACT OF ABIOTIC AND BIOTIC FACTORS ON BIOADHESION PROPERTIES OF BRETTANOMYCES BRUXELLENSIS

IMPACT OF ABIOTIC AND BIOTIC FACTORS ON BIOADHESION PROPERTIES OF BRETTANOMYCES BRUXELLENSIS

Abstract

Brettanomyces bruxellensis is an ubiquitous yeast associated with different fermentation media such as beer and kombucha, where its presence is beneficial to bring an aromatic typicity. However, it is a main spoilage yeast in wines, in which it produces volatile phenols responsible for organoleptic deviations causing significant economic losses (Chatonnet et al., 1992). Cellar and winery equipment’s are considered as the first source of contamination, during fermentation and wine ageing process (Connel et al., 2002). Indeed, it is possible to find B. bruxellensis in the air, on walls and floors of the cellars, on small materials, vats and barrels. Furthermore, specific strains are recurrently isolated in wines of certain wineries, thus showing the ability of the species to be resident in the cellar for long periods (Cibrario et al., 2019). Bioadhesion phenomena and biofilm formation are protective mechanisms that could explain the persistence of B. bruxellensis in the winery and recurrent wine contaminations. A subset of 17 B. bruxellensis strains, representative of the species genetic diversity and showing contrasting bioadhesion phenotypes, were selected to study the impact of pH and ethanol concentration on electronegativity (Zeta potential), hydrophobic character (MATS) and bioadhesion on stainless steel by confocal microscopy. The experimental design consisted in multi-strains and multi-species bioadhesions in order to observe potential interactions. Our results show that pH and ethanol concentrations do not impact the phenotypes but that the strains and genetic groups are the main factors explaining the variance suggesting the role of genetic mechanisms on bioadhesion properties. Regarding multispecies bioadhesion, a decrease in the bioadhesion of B. bruxellensis is observed in association with lactic acid and acetic acid bacteria. Multi-strains bioadhesion of B. bruxellensis show that the most bioadhesive strain is present in higher proportions during the first stages of the bioadhesive process comparing with other strains. This study provides new insights into the impact of environmental factors on B. bruxellensis lifestyles as bioadhesion in response to stressful environments, with major consequences on surface colonization in food industry and wine spoilage.

 

1. Chatonnet, P., Dubourdie, D., Boidron, J. -n., Pons, M., 1992. The origin of ethylphenols in wines. Journal of the Science of Food and Agriculture 60, 165–178. https://doi.org/10.1002/jsfa.2740600205
2. Cibrario, A., Avramova, M., Dimopoulou, M., Magani, M., Miot-Sertier, C., Mas, A., Portillo, M.C., Ballestra, P., Albertin, W., Masneuf-Pomarede, I., Dols-Lafargue, M., 2019. Brettanomyces bruxellensis wine isolates show high geographical dispersal and long persistence in cellars. PLOS ONE 14, e0222749. https://doi.org/10.1371/journal.pone.0222749
3. Connell, L., Stender, H., Edwards, C.G., 2002. Rapid Detection and Identification of Brettanomyces from Winery Air Samples Based on Peptide Nucleic Acid Analysis. Am J Enol Vitic. 53, 322–324.

DOI:

Publication date: February 9, 2024

Issue: OENO Macrowine 2023

Type: Poster

Authors

Paul Le Montagner1,2,3, Cécile Miot-Sertier¹, Marguerite Dols-Lafargue¹, Warren Albertin¹, Vincent Renouf³, Virginie Moine², Isabelle Masneuf Pomarède1,4

1. Univ. Bordeaux, INRAE, Bordeaux INP, Bordeaux Sciences Agro, OENO, UMR 1366, ISVV, 33140, Villenave d’Ornon, France 
2. Biolaffort, Floirac, France
3. Laboratoire Excell, Floirac, France
4. Bordeaux Sciences Agro, Gradignan, France

Contact the author*

Keywords

Brettanomyces bruxellensis, Wine, Spoilage, Bioadhesion

Tags

IVES Conference Series | oeno macrowine 2023 | oeno-macrowine

Citation

Related articles…

CLIMATE CHANGE EFFECT ON POLYPHENOLS OF GRIGNOLINO GRAPES (VITIS VINIFERA L.) IN HILLY ENVIRONMENT

Current changes of ecoclimatic indicators may cause significant variation in grapevine phenology and grape ripening. Climate change modifies several abiotic factors (e.g. temperature, sunlight radiation, water availability) during the grapevine growth cycle, having a direct impact on the phenological stages of the grapevine, modulating the metabolic profile of berries and activating the synthesis and accumulation of diverse compounds in the skin of berries, with consequences on the composition of the grapes.
The influence exerted by different meteorological conditions, during three consecutive years (2020-2022) on secondary metabolites such as the polyphenolic profile of Grignolino grapes was investigated. The samples were collected from three vineyards characterized by different microclimatic conditions mainly related to the vineyard aspect and to a different age of the plants.

Read More

IMPACT OF METSCHNIKOWIA PULCHERRIMA DURING FERMENTATION ON AROMATIC PROFILE OF VIDAL BLANC ICEWINE

Non-Saccharomyces yeasts not only increase microbial diversity during wine fermentation, but also have a positive effect on improving wine aroma. Among these non-Saccharomyces yeast species, Metschnikowia pulcherrima is often studied and used in winemaking in recent years, but its application in icewine has been rarely reported. In this study, indigenous M. pulcherrima strains and Saccharomyces cerevisiae strains (commercial and indigenous strains) were sequentially inoculated for icewine fermentations; meanwhile, pure S. cerevisiae fermentations were used as the control; indigenous strains used above were screened from spontaneous fermentations of Vidal blanc icewine.

Read More

Metabolomics for grape and wine research: exploring the contributions of amino acids to wine flavour

A critical aspect of wine quality is the overall expression of wine flavour, which is formed by the interplay of volatile aroma compounds, their precursors, and taste and matrix components.
Grapes directly contribute to wine only a small number of potent aroma compounds, and the unique
sensory attributes and perceived quality of a wine result from combining 100s of metabolites of grapes, yeast and bacteria, and oak wood.

Read More

DEVELOPMENT OF DISTILLATION SENSORS FOR SPIRIT BEVERAGES PRODUCTION MONITORING BASED ON IMPEDANCE SPECTROSCOPY MEASUREMENT AND PARTIAL LEAST SQUARES REGRESSION (PLS-R)

During spirit beverages production, the distillate is divided in three parts: the head, the heart, and the tail. Acetaldehyde and ethanol are two key markers which allow the correct separation of distillate. Being toxic, the elimination of the head part, which contains high concentration of acetaldehyde, is crucial to guarantee the consumer’s health and security. Plus, the tail should be separated from the heart based on ethanol concentration.

Read More

IMPACT OF GRAPE-ASSOCIATED MOLDS IN FRESH MUSHROOM AROMA PRODUCTION

Mycobiota encountered from vine to wine is a complex and diversified ecosystem that may impact grape quality at harvest and the sensorial properties of wines, thus leading to off-flavors [1-3]. Among known off-flavors in wine, fresh mushroom aroma (FMA) has been linked to some mold species, naturally pre-sent on grapes, producing specific volatile organic compounds (VOC) [4-5]. The most well-known are 1-octen-3-ol and 1-octen-3-one, although many other VOC are likely involved. To better understand the FMA defect, biotic and abiotic factors impacting growth kinetics and VOC production of selected fungal species in must media and on grapes were studied.

Read More