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Mostrando ítems 1-20 de 44
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Biocontrol of Alternaria alternata in cold-stored table grapes using psychrotrophic yeasts and bioactive compounds of natural sources
Torres Palazzolo, Carolina Andrea; Ferreyra, Susana Gisela; Iribas, Francisco Javier; Chimeno, Selva Valeria; Rojo, Cecilia; Casalongue, Claudia; Fontana, Ariel Ramón; Combina, Mariana; Ponsone, María Lorena (Elsevier, 2024-04)Alternaria alternata is a common fungal pathogen causing postharvest decay in table grapes. This study addressed the potential of autochthonous yeasts and bioactive compounds of natural sources to act as biocontrol agents ... -
Biocontrol of Botrytis cinerea in table grapes by non-pathogenic indigenous Saccharomyces cerevisiae yeasts isolated from viticultural environments in Argentina
Nally, María Cristina; Pesce, Virginia Mercedes; Maturano, Yolanda Paola; Muñoz, Claudio Javier; Combina, Mariana; Toro, María Eugenia; Castellanos de Figueroa, Lucía Inés; Vazquez, Fabio (Elsevier, 2012-02)Botrytis cinerea, the causal agent of gray mold, is an important disease of grapes. Yeasts are members of the epiphytic microbial community on surfaces of fruits and vegetables and because some yeasts inhibit fungi they ... -
Biocontrol of fungi isolated from sour rot infected table grapes by Saccharomyces and other yeast species
Nally, María Cristina; Pesce, Virginia Mercedes; Maturano, Yolanda Paola; Toro, María Eugenia; Combina, Mariana; Castellanos de Figueroa, Lucía Inés; Vazquez, Fabio (2013)Sour rot is an important disease of grapes caused by an etiologic complex of microorganisms in which filamentous fungi play a key role. Yeasts are used for biocontrol of pathogenic filamentous fungi on fruits. The major ... -
Biodiversity of Aspergillus section Nigri populations in Argentinian vineyards and ochratoxin A contamination
Chiotta, María Laura; Ponsone, María Lorena; Sosa, Débora María; Combina, Mariana; Chulze, Sofia Noemí (2013-12)Aspergillus section Nigri are described as the main source of ochratoxin A (OTA) contamination in grapes and wine worldwide. The knowledge of the factors affecting grape contamination by species included in this section ... -
Biodiversity of Saccharomyces cerevisiae populations in Malbec vineyards from the “Zona Alta del Río Mendoza” region in Argentina
Mercado, Laura Analia; Sturm, Maria Elena; Rojo, Maria Cecilia; Ciklic, Ivan Francisco; Martínez, Claudio; Combina, Mariana (Elsevier, 2011-12-15)The “Zona Alta del Río Mendoza” (ZARM) is the major Malbec grape viticulture region of Argentina. The aim of the present study was to explore Saccharomyces cerevisiae biodiversity in ZARM vineyards. Interdelta PCR and RFLP ... -
Combination of pre-fermentative and fermentative strategies to produce Malbec wines of lower alcohol and pH, with high chemical and sensory quality
Fanzone, Martín Leandro; Sari, Santiago Eduardo; Mestre Furlani, Maria Victoria; Catania, Anibal Alejandro; Catelén, María J.; Jofre, Viviana Patricia; González-Miret, María Lourdes; Combina, Mariana; Vazquez, Fabio; Maturano, Yolanda Paola (International Viticulture and Enology Society (IVES), 2020)The climatic conditions in some wine regions imply in many cases the important delay in the harvest date to achieve an appropriate phenolic maturity in red grape varieties, leading to wines with high pH and alcohol content. ... -
Construction of low-ethanol-wine yeasts through partial deletion of the Saccharomyces cerevisiae PDC2 gene
Cuello, Raúl Andrés; Flores Montero, Karina Johana; Mercado, Laura Analia; Combina, Mariana; Ciklic, Ivan Francisco (2017)We propose an alternative GMO based strategy to obtain Saccharomyces cerevisiae mutant strains with a slight reduction in their ability to produce ethanol, but with a moderate impact on the yeast metabolism. Through ... -
Control of Ochratoxin A production in grapes
Ponsone, María Lorena; Chiotta, María Laura; Palazzini, Juan Manuel; Combina, Mariana; Chulze, Sofia Noemí (2012-05)Ochratoxin A (OTA) is a mycotoxin commonly present in cereals, grapes, coffee, spices, and cocoa. Even though the main objective of the food and feed chain processors and distributors is to avoid the extended contamination ... -
Culture-dependent and independent techniques applied to monitor yeast species on cold soak at different temperatures in winemaking
Maturano, Yolanda Paola; Mestre Furlani, Maria Victoria; Combina, Mariana; Toro, Maria Eugenia; Vazquez, Fabio; Esteve Zarzoso, Braulio (2016)Transformation of grape must into wine is a process that may vary according to the consumers' requirements. Application of cold soak prior to alcoholic fermentation is a common practice in cellars in order to enhance flavor ... -
Effect of low temperature fermentation on the yeast-derived volatile aroma composition and sensory profile in Merlot wines
Massera, Ariel Fernando; Assof, Mariela Vanesa; Sari, Santiago Eduardo; Ciklic, Ivan Francisco; Mercado, Laura Analia; Jofre, Viviana Patricia; Combina, Mariana (Elsevier, 2021-02)Different winemaking practices have been tried to improve wine quality and differentiate wine styles. Low temperature fermentation has been proposed to enhance the aroma profile in young red wines. The aim of this work was ... -
Effect of transient thermal shocks on alcoholic fermentation performance
Vargas Trinidad, Andrea Susana; Lerena, María Cecilia; Alonso Del Real, Javier; Esteve Zarzoso, Braulio; Mercado, Laura Analia; Mas, A.; Querol, Amparo; Combina, Mariana (Elsevier, 2019-10)Stuck and sluggish fermentations are among the main problems in winemaking industry leading to important economic losses. Several factors have been described as causes of stuck and sluggish fermentations, being exposure ... -
Effects of pH and sugar concentration in Zygosaccharomyces rouxii growth and time for spoilage in concentrated grape juice at isothermal and non-isothermal conditions
Rojo, Cecilia; Arroyo López, Francisco Noe; Lerena, María Cecilia; Mercado, Laura Analia; Torres, Adriana Mabel; Combina, Mariana (2014-04)The effect of pH (1.7–3.2) and sugar concentration (64–68 °Brix) on the growth of Zygosaccharomyces rouxii MC9 using response surface methodology was studied. Experiments were carried out in concentrated grape juice ... -
Evaluation of different chemical preservatives to control Zygosaccharomyces rouxii growth in high sugar culture media
Rojo, María Cecilia; Arroyo Lopez, Francisco Noe; Lerena, María Cecilia; Mercado, Laura Analia; Torres, Adriana Mabel; Combina, Mariana (Elsevier, 2015-04)Zygosaccharomyces rouxii is an osmophilic yeast responsible for a large amount of economic loss in high sugar food production. Statistical modelling techniques were used in the present study to assess the individual effects ... -
Evaluation of Saccharomyces cerevisiae strains as probiotic agent with aflatoxin B1 adsorption ability for use in poultry feedstuffs
Pizzolitto, Romina P.; Armando, María R.; Combina, Mariana; Cavaglieri, Lilia Reneé; Dalcero, Ana María; Salvano, Mario A. (2012-08)In this study the aflatoxin B1 (AFB1) removal capacity, the tolerance to salivary and gastrointestinal conditions, autoaggregation and coaggregation with pathogenic bacteria of Saccharomyces cerevisiae strains isolated ... -
Evaluation of the effectiveness of potential biocontrol yeasts against black sur rot and ochratoxin A occurring under greenhouse and field grape production conditions
Ponsone, María Lorena; Nally, Maria Cristina; Chiotta, María Laura; Combina, Mariana; Kohl, Jürgen; Chulze, Sofia Noemí (2016)The efficacy of two strains of Lanchancea thermotolerans in preventing the growth and ochratoxin A (OTA) accumulation of ochratoxigenic fungi under greenhouse and field conditions were evaluated during three consecutive ... -
Generation of a non-transgenic genetically improved yeast strain for wine production from nitrogen-deficient musts
Kessi Pérez, Eduardo Ignacio; Molinet, Jennifer; García, Verónica; Aguilera, Omayra; Cepeda, Fernanda; López, María Eugenia; Sari, Santiago Eduardo; Cuello, Raúl Andrés; Ciklic, Ivan Francisco; Rojo, Cecilia; Combina, Mariana; Araneda, Cristián; Martínez, Claudio (MDPI, 2020)The yeast Saccharomyces cerevisiae is the main species responsible for the process that involves the transformation of grape must into wine, with the initial nitrogen in the grape must being vital for it. One of the main ... -
Genetic characterization of grapevine-infecting Botrytis cinerea isolates from Argentina = Caracterización genética de aislamientos de Botrytis cinerea obtenidos en vides de Argentina
Muñoz, Claudio Javier; Gomez Talquenca, Gonzalo; Oriolani, Enrique; Combina, Mariana (2010-06)Background: Botrytis cinerea is an ascomycete with a high genetic diversity and complex population structure, as reported from several hosts and sites. However, nothing is known about its genetic diversity in Argentina. Aims: ... -
Genome-wide gene expression of a natural hybrid between Saccharomyces cerevisiae and S. kudriavzevii under enological conditions
Combina, Mariana; Perez Torrado, Roberto; Tronchoni, Jordi; Belloch, Carmela; Querol, Amparo (Elsevier, 2012-07-16)The species Saccharomyces cerevisiae plays a predominant role in the wine making process. However, other species have been associated with must fermentation, such as Saccharomyces uvarum (Saccharomyces bayanus var. uvarum) ... -
Genomic and phenotypic comparison between similar wine yeast strains of Saccharomyces cerevisiae from different geographic origins
Salinas, F.; Mandaković, D.; Urzua, U.; Massera, Ariel Fernando; Miras, S.; Combina, Mariana; Ganga, M. Angélica; Martinez, Claudio (Wiley, 2010-05)Aims: To study genomic and phenotypic changes in wine yeasts produced in short time periods analysing yeast strains possibly derived from commercial strains recently dispersed. Methods and Results: We conducted a genomic ... -
Growth response of Saccharomyces cerevisiae strains to stressors associated to the vine cycle
Gonzalez, Magali Lucia Rosa; Valero, Eva; Chimeno, Selva Valeria; Garrido Fernandez, Antonio; Rodriguez Gomez, Francisco; Rojo, Cecilia; Paolinelli, Marcos; Arroyo Lopez, Francisco Noe; Combina, Mariana; Mercado, Laura Analia (Elsevier, 2022-03-07)Saccharomyces cerevisiae isolates from grapes, soil, vine bark and buds collected at seven phenological stages of an annual growth cycle, were molecular typed by Microsatellite Multiplex PCR. Subsequently 30 S. cerevisiae ...