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Análisis transcriptómico de la respuesta de S. cerevisiae durante fermentaciones enlentecidas causadas por shock térmico
Lerena, María Cecilia; Rojo, Cecilia; Sturm, Maria Elena; Massera, Ariel Fernando; Mercado, Laura Analia; Combina, Mariana (Asociación Argentina de Tecnólogos Alimentarios (AATA), 2023-10)Las fermentaciones detenidas o enlentecidas constituyen un problema frecuente que afecta la industria vitivinícola, siendo los incrementos bruscos de la temperatura una causa poco estudiada. En un estudio previo evaluamos ... -
Caracterización de los reservorios y la biodiversidad de levaduras Saccharomyces cerevisiae en un viñedo comercial durante un ciclo fenológico completo de la vid
Gonzalez, Magali Lucia Rosa; Chimeno, Selva Valeria; Sturm, Maria Elena; Lerena, María Cecilia; Massera, Ariel Fernando; Combina, Mariana; Mercado, Laura Analia (Asociación Argentina de Microbiología, 2021-10-25)La vitivinicultura constituye una actividad de amplia tradición e impacto económico en Mendoza. La Zona Alta del Río Mendoza (ZARM) es la principal región donde se cultiva el Malbec, vino emblemático argentino. ... -
Diseminación de cepas de Brettanomyces bruxellensis en bodega durante la conservación en barricas
Sturm, Maria Elena; Chimeno, Selva Valeria; Gonzalez, Magali Lucia Rosa; Lerena, María Cecilia; Massera, Ariel Fernando; Mercado, Laura Analia; Combina, Mariana (Asociación Latinoamericana de Microbiología, 2021-10-20)La alteración del vino por levaduras contaminantes representa un serio problema para la industria causando importantes pérdidas económicas. Brettanomyces bruxellensis ha sido descripta como la principal levadura contaminante ... -
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 ... -
Evolución de la diversidad de Saccharomyces cerevisiae en tres vendimias de uvas Malbec de Mendoza
Gonzalez, Magali Lucia Rosa; Chimeno, Selva Valeria; Sturm, Maria Elena; Lerena, María Cecilia; Rojo, Cecilia; Massera, Ariel Fernando; Combina, Mariana; Mercado, Laura Analia (Asociación Colombiana de Micología (ASCOLMIC), 2022-11-30)Malbec es la variedad emblemática de Argentina y la Zona Alta del Río Mendoza (ZARM) concentra el mayor volumen de su producción. Gracias al concepto de “terroir”, que dimensiona al vino con un sentido de pertenencia a su ... -
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 ... -
Yeast population dynamics during prefermentative cold soak of Cabernet Sauvignon and Malbec wines
Maturano, Yolanda Paola; Mestre Furlani, Maria Victoria; Esteve Zarzoso, Braulio; Nally, María Cristina; Lerena, María Cecilia; Toro, Maria Eugenia; Vazquez, Fabio; Combina, Mariana (2015-04)Prefermentative cold soak is a widely used technique in red wine production, but the impact on the development of native yeast species is hardly described. The aim of this work was to analyse the dynamics and diversity of ...