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Englezos V, Di Gianvito P, Serafino G, Giacosa S, Cocolin L, Rantsiou K. Strain specific Starmerella bacillaris and Saccharomyces cerevisiae interactions in mixed fermentations. J Appl Microbiol 2024; 135:lxae085. [PMID: 38549426 DOI: 10.1093/jambio/lxae085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/30/2024] [Accepted: 03/27/2024] [Indexed: 04/21/2024]
Abstract
AIMS Yeast interactions have a key role in the definition of the chemical profile of the wines. For this reason, winemakers are increasingly interested in mixed fermentations, employing Saccharomyces cerevisiae and non-Saccharomyces strains. However, the outcome of mixed fermentations is often contradictory because there is a great variability among strains within species. Previously, it was demonstrated that the loss of culturability of Starmerella bacillaris in mixed fermentations with S. cerevisiae was due to the physical contact between cells. Therefore, to further explore previous observations, the interaction mechanisms among different strains of Starm. bacillaris and S. cerevisiae during mixed fermentations were investigated. METHODS AND RESULTS Fermentations were conducted under conditions that allow physical contact between cells (flasks) but also using a double-compartment fermentation system in which cells of both species were kept separate. The role of competition for nutrients and antimicrobial compounds production on yeast-yeast interaction mechanisms was also investigated. Three Starm. bacillaris and three S. cerevisiae strains were used to investigate if interaction mechanisms are modulated in a strain-specific way. Both species populations were affected by physical contact, particularly Starm. bacillaris that lost its culturability during fermentation. In addition, loss of culturability of Starm. bacillaris strains was observed earlier in flasks than in the double-compartment system. The phenomena observed occurred in a strain couple-dependent way. Starm. bacillaris disappearance seemed to be independent of nutrient depletion or the presence of inhibitory compounds (which were not measured in this study). CONCLUSION Overall, the results of the present study reveal that cell-to-cell contact plays a role in the early death of non-Saccharomyces but the extent to which it is observed depends greatly on the Starm. bacillaris/S. cerevisiae strains tested.
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Affiliation(s)
- Vasileios Englezos
- Dipartimento di Scienze Agrarie, Università degli Studi di Torino, Forestali e Alimentari, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Paola Di Gianvito
- Dipartimento di Scienze Agrarie, Università degli Studi di Torino, Forestali e Alimentari, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Gabriele Serafino
- Dipartimento di Scienze Agrarie, Università degli Studi di Torino, Forestali e Alimentari, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Simone Giacosa
- Dipartimento di Scienze Agrarie, Università degli Studi di Torino, Forestali e Alimentari, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Luca Cocolin
- Dipartimento di Scienze Agrarie, Università degli Studi di Torino, Forestali e Alimentari, Largo Braccini 2, 10095 Grugliasco, Italy
| | - Kalliopi Rantsiou
- Dipartimento di Scienze Agrarie, Università degli Studi di Torino, Forestali e Alimentari, Largo Braccini 2, 10095 Grugliasco, Italy
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2
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Fu Y, Gao Y, Yang M, Chen J, Zhu C, Tang J, Chen L, Cai Z. Effects of Non-Saccharomyces Yeasts and Their Pairwise Combinations in Co-Fermentation with Saccharomyces cerevisiae on the Quality of Chunjian Citrus Wine. Molecules 2024; 29:1028. [PMID: 38474538 DOI: 10.3390/molecules29051028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Non-Saccharomyces (NSc) yeasts have great potential in improving wine qualities. In this study, two NSc and two Saccharomyces cerevisiae (Sc) samples were tested on their performance of mono-inoculated and composite culture in the fermentation of Chunjian citrus wine. The cell count, Brix degree, total sugar, total acidity, alcohol level, pH value, color intensity (CI), and tonality were determined to evaluate the contribution of NSc to the quality of citrus wine in the mixed fermentation. Volatile compounds were analyzed by HS-SPME-GC-MS, and sensory evaluation was carried out. During the 9-day fermentation, the mixed-culture wine exhibited a higher cell concentration than the pure culture. After the fermentation, mixed-culture wine specifically decreased the concentrations of unfavorable volatile compounds, such as isobutanol and octanoic acid, and increased favorable volatile compounds, including ethyl octanoate, ethyl decanoate, and phenylethyl acetate. The quality category of the citrus wine was improved compared with the Sc mono-inoculated wines, mainly in regard to aroma, retention, and sweetness. The study shows that the mixed fermentation of NSc and Sc has positive impacts on reducing alcohol level and total acidity and increasing CI. The present work demonstrates that the mixed fermentation of NSc and Sc has enormous beneficial impacts on improving the quality of citrus wine.
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Affiliation(s)
- Yu Fu
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
| | - Yueyue Gao
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
| | - Ming Yang
- Sichuan Sports College Rehabilitation Research Center, Chengdu 610093, China
| | - Juan Chen
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
| | - Chenglin Zhu
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
| | - Junni Tang
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
| | - Lianhong Chen
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
| | - Zijian Cai
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610225, China
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3
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Puyo M, Scalabrino L, Romanet R, Simonin S, Klein G, Alexandre H, Tourdot-Maréchal R. Competition for Nitrogen Resources: An Explanation of the Effects of a Bioprotective Strain Metschnikowia pulcherrima on the Growth of Hanseniaspora Genus in Oenology. Foods 2024; 13:724. [PMID: 38472837 DOI: 10.3390/foods13050724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/14/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
As a biological alternative to the antimicrobial action of SO2, bioprotection has been proposed to winemakers as a means to limit or prevent grape musts microbial alteration. Competition for nitrogenous nutrients and for oxygen are often cited as potential explanations for the effectiveness of bioprotection. This study analyses the effect of a bioprotective M. pulcherrima strain on the growth of one H. valbyensis strain and one H. uvarum strain. Bioprotection efficiency was observed only against H. valbyensis inoculated at the two lowest concentrations. These results indicate a potential species-dependent efficiency of the bioprotective strain and a strong impact of the initial ratio between bioprotective and apiculate yeasts. The analysis of the consumption of nitrogen compounds revealed that leucine, isoleucine, lysine and tryptophan were consumed preferentially by all three strains. The weaker assimilation percentages of these amino acids observed in H. valbyensis at 24 h growth suggest competition with M. pulcherrima that could negatively affects the growth of the apiculate yeast in co-cultures. The slowest rate of O2 consumption of H. valbyensis strain, in comparison with M. pulcherrima, was probably not involved in the bioprotective effect. Non-targeted metabolomic analyses of M. pulcherrima and H. valbyensis co-culture indicate that the interaction between both strains particularly impact lysin and tryptophan metabolisms.
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Affiliation(s)
- Maëlys Puyo
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
| | - Léa Scalabrino
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
| | - Rémy Romanet
- DIVVA (Développement Innovation Vigne Vin Aliments) Platform, UMR Procédés Alimentaires et Microbiologiques, IUVV, 2 Rue 11 Claude Ladrey, 21000 Dijon, France
| | - Scott Simonin
- Changins, Viticulture and Enology, HES-SO University of Applied Sciences and Arts Western Switzerland, Route de Duillier 50, 1260 Nyon, Switzerland
| | - Géraldine Klein
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
| | - Hervé Alexandre
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
| | - Raphaëlle Tourdot-Maréchal
- Université Bourgogne Franche-Comté, Institut Agro, Université Bourgogne, INRAE, UMR PAM 1517, 21000 Dijon, France
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4
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Varela C, Alperstein L, Sundstrom J, Solomon M, Brady M, Borneman A, Jiranek V. A special drop: Characterising yeast isolates associated with fermented beverages produced by Australia's indigenous peoples. Food Microbiol 2023; 112:104216. [PMID: 36906316 DOI: 10.1016/j.fm.2023.104216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/04/2023] [Accepted: 01/09/2023] [Indexed: 01/11/2023]
Abstract
Way-a-linah, an alcoholic beverage produced from the fermented sap of Eucalyptus gunnii, and tuba, a fermented drink made from the syrup of Cocos nucifera fructifying bud, are two of several fermented beverages produced by Australian Aboriginal and Torres Strait people. Here we describe the characterisation of yeast isolates from samples associated with the fermentation of way-a-linah and tuba. Microbial isolates were obtained from two different geographical locations in Australia - the Central Plateau in Tasmania, and Erub Island in the Torres Strait. While Hanseniaspora species and Lachancea cidri were the most abundant species in Tasmania, Candida species were the most abundant in Erub Island. Isolates were screened for tolerance to stress conditions found during the production of fermented beverages and for enzyme activities relevant to the appearance, aroma and flavour of these beverages. Based on screening results, eight isolates were evaluated for their volatile profile during the fermentation of wort, apple juice and grape juice. Diverse volatile profiles were observed for beers, ciders and wines fermented with different isolates. These findings reveal the potential of these isolates to produce fermented beverages with unique aroma and flavour profiles and highlight the vast microbial diversity associated with fermented beverages produced by Australia's Indigenous peoples.
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Affiliation(s)
- Cristian Varela
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, SA 5064, Australia; Department of Wine Science, The University of Adelaide, Glen Osmond, SA 5064, Australia.
| | - Lucien Alperstein
- Department of Wine Science, The University of Adelaide, Glen Osmond, SA 5064, Australia
| | - Joanna Sundstrom
- Department of Wine Science, The University of Adelaide, Glen Osmond, SA 5064, Australia
| | - Mark Solomon
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, SA 5064, Australia
| | - Maggie Brady
- Centre for Aboriginal Economic Policy Research, College of Arts and Social Sciences, The Australian National University, Acton, ACT 2601, Australia
| | - Anthony Borneman
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, SA 5064, Australia; Department of Wine Science, The University of Adelaide, Glen Osmond, SA 5064, Australia
| | - Vladimir Jiranek
- Department of Wine Science, The University of Adelaide, Glen Osmond, SA 5064, Australia
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Fazio NA, Russo N, Foti P, Pino A, Caggia C, Randazzo CL. Inside Current Winemaking Challenges: Exploiting the Potential of Conventional and Unconventional Yeasts. Microorganisms 2023; 11:1338. [PMID: 37317312 DOI: 10.3390/microorganisms11051338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 06/16/2023] Open
Abstract
Wine represents a complex matrix in which microbial interactions can strongly impact the quality of the final product. Numerous studies have focused on optimizing microbial approaches for addressing new challenges to enhance quality, typicity, and food safety. However, few studies have investigated yeasts of different genera as resources for obtaining wines with new, specific traits. Currently, based on the continuous changes in consumer demand, yeast selection within conventional Saccharomyces cerevisiae and unconventional non-Saccharomyces yeasts represents a suitable opportunity. Wine fermentation driven by indigenous yeasts, in the various stages, has achieved promising results in producing wines with desired characteristics, such as a reduced content of ethanol, SO2, and toxins, as well as an increased aromatic complexity. Therefore, the increasing interest in organic, biodynamic, natural, or clean wine represents a new challenge for the wine sector. This review aims at exploring the main features of different oenological yeasts to obtain wines reflecting the needs of current consumers in a sustainability context, providing an overview, and pointing out the role of microorganisms as valuable sources and biological approaches to explore potential and future research opportunities.
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Affiliation(s)
- Nunzio A Fazio
- Department of Agriculture, Food and Environment, University of Catania, Via S. Sofia, 100, 95123 Catania, Italy
| | - Nunziatina Russo
- Department of Agriculture, Food and Environment, University of Catania, Via S. Sofia, 100, 95123 Catania, Italy
- ProBioEtna Srl, Spin off University of Catania, Via S. Sofia 100, 95123 Catania, Italy
| | - Paola Foti
- Department of Agriculture, Food and Environment, University of Catania, Via S. Sofia, 100, 95123 Catania, Italy
| | - Alessandra Pino
- Department of Agriculture, Food and Environment, University of Catania, Via S. Sofia, 100, 95123 Catania, Italy
- ProBioEtna Srl, Spin off University of Catania, Via S. Sofia 100, 95123 Catania, Italy
| | - Cinzia Caggia
- Department of Agriculture, Food and Environment, University of Catania, Via S. Sofia, 100, 95123 Catania, Italy
- ProBioEtna Srl, Spin off University of Catania, Via S. Sofia 100, 95123 Catania, Italy
| | - Cinzia L Randazzo
- Department of Agriculture, Food and Environment, University of Catania, Via S. Sofia, 100, 95123 Catania, Italy
- ProBioEtna Srl, Spin off University of Catania, Via S. Sofia 100, 95123 Catania, Italy
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6
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Lai YT, Hou CY, Lin SP, Lo YC, Chen CH, Hsieh CW, Lin HW, Cheng KC. Sequential culture with aroma-producing yeast strains to improve the quality of Kyoho wine. J Food Sci 2023; 88:1114-1127. [PMID: 36660881 DOI: 10.1111/1750-3841.16468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/12/2022] [Accepted: 12/29/2022] [Indexed: 01/21/2023]
Abstract
Despite many non-Saccharomyces yeasts being considered spoilage microorganisms, they can increase aroma and flavor diversity in alcoholic beverages. The purpose of this study was to investigate nontraditional inoculation strategies using aroma-producing yeast strains for Kyoho wine fermentation, followed by an instrumental analysis and sensory evaluation. The winemaking process was carried out using Saccharomyces cerevisiae Gr112, Hanseniaspora uvarum Pi235, and Pichia kluyveri Pe114. Multiple inoculation strategies were explored. In instrumental analysis results, mixed culture could promote the formation of esters (5.9-folds) and glycerol (1.3-folds) and reduce the content of ethanol (-0.5% [v/v]) in wine. The sensory analysis results suggested that the three yeast strains sequential inoculation treatment was associated with the aroma attributes "floral," "red fruity," and "tropical fruity." Co-cultivation contributed to an increase in complexity and aromatic intensity, with the three-strain inoculation treatment presenting a more distinctive appearance. PRACTICAL APPLICATION: The inoculation of S. cerevisiae improved the accumulation of volatile acids and esters by inhibiting the growth of non-Saccharomyces yeast strains. Inoculation of H. uvarum and P. kluyveri would effectively solve the defect of excessive content of higher alcohols in wines produced by S. cerevisiae. The suitable inoculation strategy between non-Saccharomyces yeasts could improve the overall quality of Kyoho wine whose starter might be widely used in fermentation industry.
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Affiliation(s)
- Yen-Tso Lai
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Chih-Yao Hou
- Department of Seafood Science, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Shin-Ping Lin
- School of Food Safety, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chen Lo
- Institute of Food Science Technology, National Taiwan University, Taipei, Taiwan
| | - Chien-Hao Chen
- Department of Food and Beverage Management, National Kaohsiung University of Hospitality and Tourism, Taipei, Taiwan
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Hui-Wen Lin
- Department of Optometry, Asia University, Taichung, Taiwan
| | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan.,Institute of Food Science Technology, National Taiwan University, Taipei, Taiwan.,Department of Optometry, Asia University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
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7
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Bordet F, Romanet R, Bahut F, Ballester J, Eicher C, Peña C, Ferreira V, Gougeon R, Julien-Ortiz A, Roullier-Gall C, Alexandre H. Expanding the diversity of Chardonnay aroma through the metabolic interactions of Saccharomyces cerevisiae cocultures. Front Microbiol 2023; 13:1032842. [PMID: 36845971 PMCID: PMC9947296 DOI: 10.3389/fmicb.2022.1032842] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 12/02/2022] [Indexed: 02/11/2023] Open
Abstract
Yeast co-inoculations in winemaking are often studied in the framework of modulating the aromatic profiles of wines. Our study aimed to investigate the impact of three cocultures and corresponding pure cultures of Saccharomyces cerevisiae on the chemical composition and the sensory profile of Chardonnay wine. Coculture makes it possible to obtain completely new aromatic expressions that do not exist in the original pure cultures attributed to yeast interactions. Esters, fatty acids and phenol families were identified as affected. The sensory profiles and metabolome of the cocultures, corresponding pure cultures and associated wine blends from both pure cultures were found to be different. The coculture did not turn out to be the addition of the two pure culture wines, indicating the impact of interaction. High resolution mass spectrometry revealed thousands of cocultures biomarkers. The metabolic pathways involved in these wine composition changes were highlighted, most of them belonging to nitrogen metabolism.
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Affiliation(s)
- Fanny Bordet
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France,Lallemand SAS, Blagnac, France,*Correspondence: Fanny Bordet,
| | - Rémy Romanet
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France
| | - Florian Bahut
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France,Lallemand SAS, Blagnac, France
| | - Jordi Ballester
- Centre des Sciences du Goût et de l’Alimentation, CNRS, INRAE, Institut Agro, Université Bourgogne Franche-Comté, Dijon, France
| | - Camille Eicher
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France
| | - Cristina Peña
- Dpt. Química Analítica, Facultad de Ciencias, University of Zaragoza, Zaragoza, Spain
| | - Vicente Ferreira
- Dpt. Química Analítica, Facultad de Ciencias, University of Zaragoza, Zaragoza, Spain
| | - Régis Gougeon
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France,DIVVA (Développement Innovation Vigne Vin Aliments) Platform/PAM UMR, IUVV, Dijon, France
| | | | - Chloé Roullier-Gall
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France
| | - Hervé Alexandre
- PAM UMR A 02.102, Univ. Bourgogne Franche-Comté, Institut Agro Dijon, IUVV, Dijon, France
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8
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Pourcelot E, Conacher C, Marlin T, Bauer F, Galeote V, Nidelet T. Comparing the hierarchy of inter- and intra-species interactions with population dynamics of wine yeast cocultures. FEMS Yeast Res 2023; 23:foad039. [PMID: 37660277 PMCID: PMC10532119 DOI: 10.1093/femsyr/foad039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/31/2023] [Indexed: 09/04/2023] Open
Abstract
In winemaking, the development of new fermentation strategies, such as the use of mixed starter cultures with Saccharomyces cerevisiae (Sc) yeast and non-Saccharomyces (NS) species, requires a better understanding of how yeasts interact, especially at the beginning of fermentation. Despite the growing knowledge on interactions between Sc and NS, few data are available on the interactions between different species of NS. It is furthermore still unclear whether interactions are primarily driven by generic differences between yeast species or whether individual strains are the evolutionarily relevant unit for biotic interactions. This study aimed at acquiring knowledge of the relevance of species and strain in the population dynamics of cocultures between five yeast species: Hanseniaspora uvarum, Lachancea thermotolerans, Starmerella bacillaris, Torulaspora delbrueckii and Sc. We performed cocultures between 15 strains in synthetic grape must and monitored growth in microplates. Both positive and negative interactions were identified. Based on an interaction index, our results showed that the population dynamics seemed mainly driven by the two species involved. Strain level was more relevant in modulating the strength of the interactions. This study provides fundamental insights into the microbial dynamics in early fermentation and contribute to the understanding of more complex consortia encompassing multiple yeasts trains.
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Affiliation(s)
| | - Cleo Conacher
- Department of Viticulture and Oenology, South African Grape and Wine Research Institute, Stellenbosch University, Stellenbosch, 7602, South Africa
- Department of Information Science, Centre for Artificial Intelligence Research, Stellenbosch, 7602, South Africa
| | - Thérèse Marlin
- SPO, Univ Montpellier, INRAE, Institut Agro, 34060 Montpellier, France
| | - Florian Bauer
- Department of Viticulture and Oenology, South African Grape and Wine Research Institute, Stellenbosch University, Stellenbosch, 7602, South Africa
| | - Virginie Galeote
- SPO, Univ Montpellier, INRAE, Institut Agro, 34060 Montpellier, France
| | - Thibault Nidelet
- SPO, Univ Montpellier, INRAE, Institut Agro, 34060 Montpellier, France
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9
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López-Enríquez L, Vila-Crespo J, Rodríguez-Nogales JM, Fernández-Fernández E, Ruipérez V. Screening and Enzymatic Evaluation of Saccharomyces cerevisiae Populations from Spontaneous Fermentation of Organic Verdejo Wines. Foods 2022; 11:3448. [PMID: 36360060 PMCID: PMC9656934 DOI: 10.3390/foods11213448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 10/15/2023] Open
Abstract
Microbial populations in spontaneous winemaking contribute to the distinctiveness and quality of the wines. In this study, molecular methods were applied to 484 isolated yeasts to survey the diversity of the Saccharomyces cerevisiae population in spontaneous fermentations of organic Verdejo grapes. Identification was carried out at strain level for samples from different vineyards correct.and stages of the winemaking process over the course of two vintages, establishing 54 different strains. The number of isolates belonging to each strain was not homogeneous, as two predominant strains represented more than half of the isolates independent of vineyard or vintage. Regarding the richness and abundance, differences among the stages of fermentation were confirmed, finding the highest diversity values in racked must and in the end of fermentation stages. Dissimilarity in S. cerevisiae communities was found among vineyards and vintages, distinguishing representative groups of isolates for each of the populations analysed. These results highlight the effect of vineyard and vintage on yeast communities as well as the presence of singular strains in populations of yeasts. Oenologically relevant enzymatic activities, β-lyase, protease and β-glucanase, were detected in 83.9%, 96.8% and 38.7% of the isolates, respectively, which may be of interest for potential future studies.
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Affiliation(s)
- Lorena López-Enríquez
- Área de Microbiología, Universidad de Valladolid, Escuela Técnica Superior de Ingenierías Agrarias, Av. Madrid 50, 34004 Palencia, Spain
| | - Josefina Vila-Crespo
- Área de Microbiología, Universidad de Valladolid, Escuela Técnica Superior de Ingenierías Agrarias, Av. Madrid 50, 34004 Palencia, Spain
| | - José Manuel Rodríguez-Nogales
- Área de Tecnología de los Alimentos, Universidad de Valladolid, Escuela Técnica Superior de Ingenierías Agrarias, Av. Madrid 50, 34004 Palencia, Spain
| | - Encarnación Fernández-Fernández
- Área de Tecnología de los Alimentos, Universidad de Valladolid, Escuela Técnica Superior de Ingenierías Agrarias, Av. Madrid 50, 34004 Palencia, Spain
| | - Violeta Ruipérez
- Área de Microbiología, Universidad de Valladolid, Escuela Técnica Superior de Ingenierías Agrarias, Av. Madrid 50, 34004 Palencia, Spain
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10
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Evaluation of Autochthonous Non-Saccharomyces Yeasts by Sequential Fermentation for Wine Differentiation in Galicia (NW Spain). FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7030183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Non-Saccharomyces yeasts constitute a useful tool in winemaking because they secrete hydrolytic enzymes and produce metabolites that enhance wine quality; in addition, their ability to reduce alcohol content and/or to increase acidity can help to mitigate the effects of climatic change on wines. The purpose of this study was to evaluate the oenological traits of non-Saccharomyces yeast strains autochthonous from Galicia (NW Spain). To do that, we carried out sequential fermentation using 13 different species from the yeast collection of Estación de Viticultura e Enoloxía de Galicia (Evega) and Saccharomyces cerevisiae EC1118. The fermentation kinetics and yeast implantation were monitored using conventional methods and genetic techniques, respectively. The basic chemical parameters of wine were determined using the OIV official methodology, and the fermentative aroma compounds were determined by GC–FID. The results evidenced the limited fermentative power of these yeasts and the differences in their survival after the addition of S. cerevisiae to complete fermentation. Some strains reduced the alcohol and/or increased the total acidity of the wine. The positive effect on sensory wine properties as well as the production of desirable volatile compounds were confirmed for Metschnikowia spp. (Mf278 and Mp176), Lachancea thermotolerans Lt93, and Pichia kluyveri Pkl88. These strains could be used for wine diversification in Galicia.
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11
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Zilelidou EA, Nisiotou A. Understanding Wine through Yeast Interactions. Microorganisms 2021; 9:microorganisms9081620. [PMID: 34442699 PMCID: PMC8399628 DOI: 10.3390/microorganisms9081620] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/19/2021] [Accepted: 07/26/2021] [Indexed: 12/14/2022] Open
Abstract
Wine is a product of microbial activities and microbe–microbe interactions. Yeasts are the principal microorganisms responsible for the evolution and fulfillment of alcoholic fermentation. Several species and strains coexist and interact with their environment and with each other during the fermentation course. Yeast–yeast interactions occur even from the early stages of fermentation, determining yeast community structure and dynamics during the process. Different types of microbial interactions (e.g., mutualism and commensalism or competition and amensalism) may exert positive or negative effects, respectively, on yeast populations. Interactions are intimately linked to yeast metabolic activities that influence the wine analytical profile and shape the wine character. In this context, much attention has been given during the last years to the interactions between Saccharomyces cerevisiae (SC) and non-Saccharomyces (NS) yeast species with respect to their metabolic contribution to wine quality. Yet, there is still a significant lack of knowledge on the interaction mechanisms modulating yeast behavior during mixed culture fermentation, while much less is known about the interactions between the various NS species or between SC and Saccharomyces non-cerevisiae (SNC) yeasts. There is still much to learn about their metabolic footprints and the genetic mechanisms that alter yeast community equilibrium in favor of one species or another. Gaining deeper insights on yeast interactions in the grape–wine ecosystem sets the grounds for understanding the rules underlying the function of the wine microbial system and provides means to better control and improve oenological practices.
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Comitini F, Agarbati A, Canonico L, Ciani M. Yeast Interactions and Molecular Mechanisms in Wine Fermentation: A Comprehensive Review. Int J Mol Sci 2021; 22:ijms22147754. [PMID: 34299371 PMCID: PMC8307806 DOI: 10.3390/ijms22147754] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 01/16/2023] Open
Abstract
Wine can be defined as a complex microbial ecosystem, where different microorganisms interact in the function of different biotic and abiotic factors. During natural fermentation, the effect of unpredictable interactions between microorganisms and environmental factors leads to the establishment of a complex and stable microbiota that will define the kinetics of the process and the final product. Controlled multistarter fermentation represents a microbial approach to achieve the dual purpose of having a less risky process and a distinctive final product. Indeed, the interactions evolved between microbial consortium members strongly modulate the final sensorial properties of the wine. Therefore, in well-managed mixed fermentations, the knowledge of molecular mechanisms on the basis of yeast interactions, in a well-defined ecological niche, becomes fundamental to control the winemaking process, representing a tool to achieve such objectives. In the present work, the recent development on the molecular and metabolic interactions between non-Saccharomyces and Saccharomyces yeasts in wine fermentation was reviewed. A particular focus will be reserved on molecular studies regarding the role of nutrients, the production of the main byproducts and volatile compounds, ethanol reduction, and antagonistic actions for biological control in mixed fermentations.
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Harlé O, Legrand J, Tesnière C, Pradal M, Mouret JR, Nidelet T. Correction: Investigations of the mechanisms of interactions between four non-conventional species with Saccharomyces cerevisiae in oenological conditions. PLoS One 2021; 16:e0253680. [PMID: 34138978 PMCID: PMC8211219 DOI: 10.1371/journal.pone.0253680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Effect of Aeration on Yeast Community Structure and Volatile Composition in Uninoculated Chardonnay Wines. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7020097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Uninoculated wines are regarded as having improved mouthfeel and texture and more complex flavor profiles when compared to wines inoculated with commercial S. cerevisiae strains. Uninoculated fermentation involves a complex microbial succession of yeasts and bacteria during fermentation. Microbial population dynamics are affected by several factors that can ultimately determine if a particular species or strain contributes to wine aroma and flavor. In this work, we have studied the effect of aeration, a common winemaking practice, on the yeast microbiota during uninoculated Chardonnay wine fermentation. The timing of aeration and then aeration intensity were evaluated across two successive vintages. While the timing of aeration significantly impacted fermentation efficiency across oxygen treatments, different levels of aeration intensity only differed when compared to the non-aerated control ferments. Air addition increased the viable cell population size of yeast from the genera Hanseniaspora, Lachancea, Metschnikowia and Torulaspora in both vintages. While in 2019, a high relative abundance was found for Hanseniaspora species in aerated ferments, in 2020, T. delbrueckii was visibly more abundant than other species in response to aeration. Accompanying the observed differences in yeast community structure, the chemical profile of the finished wines was also different across the various aeration treatments. However, excessive aeration resulted in elevated concentrations of ethyl acetate and acetic acid, which would likely have a detrimental effect on wine quality. This work demonstrates the role of aeration in shaping yeast population dynamics and modulating a volatile profile in uninoculated wines, and highlights the need for careful air addition to avoid a negative sensory impact on wine flavor and aroma.
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