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Gerard LM, Corrado MB, Davies CV, Soldá CA, Dalzotto MG, Esteche S. Isolation and identification of native yeasts from the spontaneous fermentation of grape musts. Arch Microbiol 2023; 205:302. [PMID: 37550458 DOI: 10.1007/s00203-023-03646-1] [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: 04/17/2023] [Accepted: 08/01/2023] [Indexed: 08/09/2023]
Abstract
Recently, there has been growing interest in the characterization of native yeasts for their use in production of wines with regional characteristics. This study aimed to investigate Saccharomyces and non-Saccharomyces yeasts present in the spontaneous fermentation of Tannat and Marselan grape musts collected from Concordia (Entre Ríos, Argentina) over 2019, 2020, and 2021 vintages. The evolution of these fermentative processes was carried out by measuring total soluble solids, total acidity, volatile acidity, pH, ethanol concentration, and total carbon content. Isolated Saccharomyces and non-Saccharomyces yeasts were identified based on colony morphology in WL medium, 5.8S-ITS-RFLP analysis, and 26S rDNA D1/D2 gene sequencing. Two hundred and ten yeast colonies were isolated and identified as Pichia kudriavzevii, Saccharomyces cerevisiae, Hanseniaspora uvarum, Metschnikowia pulcherrima, Candida albicans, Candida parapsilosis, Pichia occidentalis, Pichia bruneiensis, Hanseniaspora opuntiae, Issatchenkia terricola, and Hanseniaspora vineae. P. kudriavzevii isolated from all vintages was associated with the spontaneous fermentation of grape musts from the Concordia region.
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Affiliation(s)
- Liliana Mabel Gerard
- Laboratorio de Microbiología y Biotecnología de Alimentos, Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Monseñor Tavella 1450, 3200, Concordia, Entre Ríos, Argentina.
| | - María Belén Corrado
- Laboratorio de Microbiología y Biotecnología de Alimentos, Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Monseñor Tavella 1450, 3200, Concordia, Entre Ríos, Argentina
| | - Cristina Verónica Davies
- Laboratorio de Microbiología y Biotecnología de Alimentos, Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Monseñor Tavella 1450, 3200, Concordia, Entre Ríos, Argentina
| | - Carina Alejandra Soldá
- Laboratorio de Microbiología y Biotecnología de Alimentos, Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Monseñor Tavella 1450, 3200, Concordia, Entre Ríos, Argentina
| | - María Gabriela Dalzotto
- Laboratorio de Microbiología y Biotecnología de Alimentos, Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Monseñor Tavella 1450, 3200, Concordia, Entre Ríos, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Concordia, Argentina
| | - Sofía Esteche
- Laboratorio de Microbiología y Biotecnología de Alimentos, Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Monseñor Tavella 1450, 3200, Concordia, Entre Ríos, Argentina
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Yahyapour G, Anvar SAA, Ataee M, Ahari Hamed H, Askari H. Isolation, Identification, and Characterization of the Native Yeast Strains from Homemade Cheese to Assess their Eliminating Impact on the Aflatoxin B1 and M1 of the Simulated Gastrointestinal Fluid. IRANIAN JOURNAL OF BIOTECHNOLOGY 2023; 21:e3291. [PMID: 37228633 PMCID: PMC10203185 DOI: 10.30498/ijb.2023.330834.3291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 12/31/2022] [Indexed: 05/27/2023]
Abstract
Background The occurrence of aflatoxins in food products is a silent threat to human health worldwide. A range of strategies has been introduced to address the bioavailability of aflatoxins, which are considered microbial tools to provide a low-cost and promising approach. Objectives The present study focused on the separation of yeast strains from the homemade cheese rind layer to investigate the ability of native yeasts to eliminate AB1 and AM1 from simulated gastrointestinal fluids. Material and Methods Homemade cheese samples were prepared from different locations in Tehran provinces and yeast strains were isolated and identified through the biochemical methods and molecular analysis of internal transcribed spacer and D1/D2 domain of 26S rDNA regions. Isolated strains were screened using simulated gastrointestinal fluids, and the ability of yeast strains to absorb aflatoxin was evaluated. Results Out of 13 strains, 7 yeast strains were not affected by 5 ppm AFM1 while 11 strains did not show any significant response to 5 mg.L-1 (ppm) of AFB1. On the other hand, 5 strains were able to successfully tolerate 20 ppm AFB1. Candidate yeasts showed different abilities to remove aflatoxins B1 and M1. In addition, C. lusitaniae, G. geotrichum, G. candidum, and C. sanyaensis exhibited a significant ability to detoxify aflatoxins from the gastrointestinal fluid, respectively. Conclusion Our data suggest that yeast communities with essential effects on the quality of homemade cheese appear to be precise candidates for the potential elimination of aflatoxins from the gastrointestinal fluid.
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Affiliation(s)
- Ghazal Yahyapour
- Department of food hygiene, science and research branch, Islamic Azad university, Tehran, Iran
| | - Seyed Amir Ali Anvar
- Department of food hygiene, science and research branch, Islamic Azad university, Tehran, Iran
| | - Maryam Ataee
- Department of food hygiene, science and research branch, Islamic Azad university, Tehran, Iran
| | - Hamed Ahari Hamed
- Department of food science and technology, science and research branch, Islamic Azad university, Tehran, Iran
| | - Hossein Askari
- Department of Plant Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
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Fernández-Pacheco P, Rosa IZ, Arévalo-Villena M, Gomes E, Pérez AB. Study of potential probiotic and biotechnological properties of non-Saccharomyces yeasts from fruit Brazilian ecosystems. Braz J Microbiol 2021; 52:2129-2144. [PMID: 34595728 DOI: 10.1007/s42770-021-00541-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/08/2021] [Indexed: 11/25/2022] Open
Abstract
Yeast isolates from flowers and fruits from a Brazilian forest were studied. The yeasts were identified at species and strain level by PCR-RFLP and PCR-RAPD, respectively. The 46 isolated yeasts were classified into 11 different species belonging to the genera Candida, Diutina, Hanseniaspora, Meyerozyma, Pichia, Rhodotorula, and Torulaspora. A total of 20 different strains were found. In order to ascertain the probiotic potential, the resistance to gastrointestinal conditions, autoaggregation, and hydrophobicity assays were studied, along with the capacity to form biofilm. The results indicate that, although most of the strains presented better results than Saccharomyces boulardii (the only strain recognized as a probiotic yeast), four strains were the most promising, namely, Rhodotorula mucilaginosa 32, Meyerozyma caribbica 35, and Diutina rugosa 12 and 45, according to the Duncan test. Several biotechnological properties were evaluated. D. rugosa inhibited Dekkera bruxellensis. The assimilation or fermentation of seven sugars was tested, and only five of the yeasts did not show a capacity to assimilate any of the sugars under aerobic conditions. However, all strains were able to ferment at least one of the sugars under anaerobic conditions. As far as enzyme production is concerned, positive results were only found for the enzymes' amylase, pectinase, and protease. D. rugosa 42 and Hanseniaspora opuntiae 18, followed of Pichia kluyveri 26, showed high values for the production of melatonin. In conclusion, the results of this study show that several non-Saccharomyces present probiotic characteristics, and these have good potential for industrial applications in the food or biotechnology industries.
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Affiliation(s)
- Pilar Fernández-Pacheco
- Food Science and Technology Department, Castilla-La Mancha University, Av. Camilo José Cela S/N, Edificio Marie Curie, 13071, Ciudad Real, Spain
| | - Isabel Zaparoli Rosa
- Microbiology Department, Instituto de Biociências, Letras e Ciências Exatas - Ibilce Jardim Nazareth, Rua Cristóvão Colombo, Universidade Estadual Paulista, 15054-000 - São José do Rio Preto, São Paulo, Brazil
| | - María Arévalo-Villena
- Food Science and Technology Department, Castilla-La Mancha University, Av. Camilo José Cela S/N, Edificio Marie Curie, 13071, Ciudad Real, Spain.
| | - Eleni Gomes
- Microbiology Department, Instituto de Biociências, Letras e Ciências Exatas - Ibilce Jardim Nazareth, Rua Cristóvão Colombo, Universidade Estadual Paulista, 15054-000 - São José do Rio Preto, São Paulo, Brazil
| | - Ana Briones Pérez
- Food Science and Technology Department, Castilla-La Mancha University, Av. Camilo José Cela S/N, Edificio Marie Curie, 13071, Ciudad Real, Spain
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García-Béjar B, Owens RA, Briones A, Arévalo-Villena M. Proteomic profiling and glycomic analysis of the yeast cell wall in strains with Aflatoxin B 1 elimination ability. Environ Microbiol 2021; 23:5305-5319. [PMID: 34029450 DOI: 10.1111/1462-2920.15606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 05/18/2021] [Indexed: 11/27/2022]
Abstract
The use of microorganisms for Aflatoxin B1 elimination has been studied as a new alternative tool and it is known that cell wall carried out a critical role. For that reason, cell wall and soluble intracellular fraction of eight yeasts with AFB1 detoxification capability were analysed. The quantitative and qualitative comparative label-free proteomic allowed the identification of diverse common constituent proteins, which revealed that putative cell wall proteins entailed less than 10% of the total proteome. It was possible to characterize different enzymes linked to cell wall polysaccharides biosynthesis as well as other proteins related with the cell wall organization and regulation. Additionally, the concentration of the principal polysaccharides was determined which permitted us to observe that β-glucans concentration was higher than mannans in most of the samples. In order to better understand the biosorption role of the cell wall against the AFB1 , an antimycotic (Caspofungin) was used to damage the cell wall structure. This assay allowed the observation of an effect on the normal growth of those yeasts with damaged cell walls that were exposed to AFB1 . This effect was not observed in yeast with intact cell walls, which may reveal a protective role of this structure against mycotoxins.
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Affiliation(s)
- Beatriz García-Béjar
- Department of Analytical Chemistry and Food Technology, University of Castilla-La Mancha, Ciudad Real, 13071, Spain
| | - Rebecca A Owens
- Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Ana Briones
- Department of Analytical Chemistry and Food Technology, University of Castilla-La Mancha, Ciudad Real, 13071, Spain
| | - María Arévalo-Villena
- Department of Analytical Chemistry and Food Technology, University of Castilla-La Mancha, Ciudad Real, 13071, Spain
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