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Incidence of osmophilic yeasts and Zygosaccharomyces rouxii during the production of concentrate grape juices
Torres Palazzolo, C.; Cuello, Raúl Andrés; Gonzalez, Magali Lucia Rosa; Guevara, Felipe; Ponsone, María Lorena; Mercado, Laura Analia; Martinez, Claudio; Combina, Mariana; Rojo, Maria Cecilia (2017)Zygosaccharomyces rouxii is the main spoilage yeast of grape juice concentrates. Detection and identification of Z. rouxii during the production of grape juice concentrate is critical to prevent spoilage in the final ... -
Influencia de diferentes fuentes de nitrógeno sobre el crecimiento y la fermentación de levaduras en mostos de uva
Rojo, Cecilia; Rodriguez Gomez, Francisco; Torres Palazzolo, Carolina Andrea; Ponsone, María Lorena; Massera, Ariel Fernando; Mercado, Laura Analia; Arroyo Lopez, Francisco Noe; Combina, Mariana (Ministro de Ciencia y Tecnología, Gobierno de la Provincia de Córdoba, 2022-11-11)En Argentina, la vitivinicultura representa un importante componente en las economías productivas de las provincias de Mendoza y San Juan. La obtención de bioetanol 1G a partir de uvas de bajo valor enológico podría aportar ... -
Inoculation strategies to improve persistence and implantation of commercial S. cerevisiae strains in red wines produced with prefermentative cold soak
Maturano, Yolanda Paola; Lerena, María Cecilia; Mestre, María Victoria; Casassa, Luis Federico; Toro, Maria Eugenia; Mercado, Laura Analia; Combina, Mariana (Elsevier, 2018)Prefermentative cold soak is a winemaking technique aimed at enhancing aroma and colour extraction in red wines. This study aimed at evaluating implantation and persistence rates of commercial active dry yeast strains (ADY) ... -
Malolactic fermentation induced by Lactobacillus plantarum in Malbec wines from Argentina
Lerena, María Cecilia; Sari, Santiago Eduardo; Mercado, Laura Analia; Krieger-Weber, Sibylle; Combina, Mariana; Rojo, María Cristina (2016)The current market requirements to obtain wines with enhanced complexity and varietal character propose the finding of new microorganisms capable of driving the malolactic fermentation (MLF) and contributing to new and ... -
Optimization of fermentation-relevant factors: A strategy to reduce ethanol in red wine by sequential culture of native yeasts
Maturano, Yolanda Paola; Mestre Furlani, Maria Victoria; Kuchen, Benjamín; Toro, Maria Eugenia; Mercado, Laura Analia; Vazquez, Fabio; Combina, Mariana (2018-08-14)Current consumer preferences are determined by well-structured, full-bodied wines with a rich flavor and with reduced alcohol levels. One of the strategies for obtaining wines with reduced ethanol content is sequential ... -
Persistence and reservoirs of Saccharomyces cerevisiae biodiversity in different vineyard niches
Gonzalez, Magali Lucia Rosa; Sturm, Maria Elena; Lerena, Maria Cecilia; Rojo, Maria Cecilia; Chimeno, Selva Valeria; Combina, Mariana; Mercado, Laura Analia (Elsevier, 2019-09)Highlights: S. cerevisiae vineyard populations dynamically changed during grape growth cycle. Strains from ripe grapes showed highest diversity and distribution across vineyard. Buds in winter and bark from sprouting to ... -
Populations of Saccharomyces cerevisiae in Vineyards: Biodiversity and Persistence Associated with Terroir
González, Magalí Lucía; Chimeno, Selva Valeria; Sturm, Maria Elena; Becerra, Lucía Maribel; Lerena, María Cecilia; Rojo, María Cecilia; Combina, Mariana; Mercado, Laura Analia (MDPI, 2023-03)The origin terroir provides distinctive characteristics for wines, in relation to soil, climate, oenological practices, etc. Hence, the characterization of each wine region by multiple aspects wouldallow differentiation ... -
Probabilistic model for the spoilage wine yeast Dekkera bruxellensis as a function of pH, ethanol and free SO2 using time as a dummy variable
Sturm, Maria Elena; Arroyo López, Francisco Noé; Garrido Fernandez, Antonio; Querol, Amparo; Mercado, Laura Analia; Ramírez, María Laura; Combina, Mariana (Elsevier, 2014-01-17)The present study uses a probabilistic model to determine the growth/no growth interfaces of the spoilage wine yeast Dekkera bruxellensis CH29 as a function of ethanol (10–15%, v/v), pH (3.4–4.0) and free SO2 (0–50 mg/l) ... -
Reduction of Zygosaccharomyces rouxii Population in Concentrated Grape Juices by Thermal Pasteurization and Hydrostatic High Pressure Processing
Rojo, María Cecilia; Cristiani, M.; Szerman, Natalia; Gonzalez, M.L.; Lerena, María Cecilia; Mercado, Laura Analia; Combina, Mariana (Springer, 2019-02)Zygosaccharomyces rouxii is the most frequent spoilage yeast species detected in concentrated grape juice. In order to reduce Z. rouxii populations and consequently extend the microbiological shelf life of this product, ... -
Selection of non-Saccharomyces yeasts to be used in grape musts with high alcoholic potential: A strategy to obtain wine with reduced etanol content
Mestre Furlani, Maria Victoria; Maturano, Yolanda Paola; Combina, Mariana; Mercado, Laura Analia; Toro, Maria Eugenia; Vazquez, Fabio (2017)Ethanol content of wine has increased over the last decades as consequence of searching phenolic maturity, requiring increased grape maturity. This may result in the production of wines with excessive alcohol levels ... -
Valorización de variedades criollas de uvas mediante un abordaje microbiológico
Becerra, Lucia Maribel; Gonzalez, Magali Lucia Rosa; Chimeno, Selva Valeria; Sturm, Maria Elena; Combina, Mariana; Mercado, Laura Analia (Asociación Colombiana de Micología (ASCOLMIC), 2022-12-19)La denominación de uvas criollas se aplica a variedades de uva autóctonas de Sudamérica resultado del cruzamiento entre plantas de vid traídas por los españoles. La vinificación de estas variedades presenta alto interés ... -
La variación en los parámetros de crecimiento de cepas Saccharomyces cerevisiae en respuesta a condiciones de estrés presentes durante el ciclo fenológico de la vid evidencia una aclimatación al nicho de viñedo
Gonzalez, Magali Lucia Rosa; Chimeno, Selva Valeria; Valero, Eva; Arroyo López, Francisco Noé; Garrido Fernandez, Antonio; Rodriguez Gomez, F.; Sturm, Maria Elena; Rojo, Cecilia; Combina, Mariana; Mercado, Laura Analia (Asociación Latinoamericana de Microbiología, 2021-10)La producción de vid y la elaboración de vino constituyen dos actividades de amplia tradición e impacto económico en Mendoza, Argentina. La Zona Alta del Río Mendoza (ZARM) es la principal región vitícola donde se cultiva ... -
Vineyard zoning of cv Bonarda argentine (Vitis vinífera L.), from Sentinel satellite images and three vegetation indexes = Zonificación de un viñedo de cv Bonarda argentina (Vitis vinífera L.) a partir de imágenes del satélite Sentinel y tres índices de vegetación
Albornoz, Liliana; Rodríguez Plaza, Luis; Navarro, Armando; López, Marcela; Bageta, Carlos R.; Mercado, Laura Analia (Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2019-12)This study describes the results and conclusions obtained from vineyard zoning in Mendoza by using three vegetation indexes (NDVI, EVI and SAVI). Such indexes were calculated from spectral signals received by the Sentinel- ... -
Yeast identification in grape juice concentrates from Argentina
Combina, Mariana; Daguerre, Claire; Massera, Ariel Fernando; Mercado, Laura Analia; Sturm, Maria Elena; Ganga, M. Angélica; Martínez, Claudio (Wiley, 2008-02)Aims: The purpose of this study was to identify yeast species present in spoiled and unspoiled grape juice concentrates from Argentine industries. Methods and Results: Osmophilic and osmotolerant yeasts were isolated from ...