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Agregado de valor en mosto de uva aplicando diferentes tecnologías de proceso
Massera, Ariel Fernando; Rojo, María Cecilia; Audero, Gabriela Maria; Paez, Roxana Beatriz; Combina, Mariana; Sari, Santiago Eduardo (Instituto de Tecnología de Alimentos, INTA, 2022-12)During the production of concentrated musts and wines, the grape juice comes into contact with with microorganisms that can affect the process and/or alter the product. The industry seeks alternatives that allow them to ... -
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 ... -
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 ... -
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. ... -
Characterization of two GH10 enzymes with ability to hydrolyze pretreated Sorghum bicolor bagasse
Bruno Baron, Camila Ayelen; Mon, Maria Laura; Marrero Diaz De Vill, Rubén; Cattaneo, Andrea; Di Donato, Paola; Poli, Annarita; Negri, Maria Emilia; Alegre, Mariana; Soria, Marcelo Abel; Rojo, Cecilia; Combina, Mariana; Finore, Ilaria; Talia, Paola Mónica (Springer, 2025-04)In this study, we characterized two novel enzymes of the glycoside hydrolase family 10 (GH10), Xyl10 C and Xyl10E, identified in the termite gut microbiome. The activities of both enzymes were assayed using beechwood xylan, ... -
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 ... -
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 ... -
Diversidad de cepas de Brettanomyces bruxellensis presentes durante la elaboración y conservación del vino en bodega
Sturm, Maria Elena; Chimeno, Selva Valeria; Gonzalez, Magali Lucia Rosa; Lerena, María Cecilia; Mercado, Laura Analia; Combina, Mariana (Ministro de Ciencia y Tecnología, Gobierno de la Provincia de Córdoba, 2022) -
Efecto de la inoculación de levaduras seleccionadas y de la concentración de nitrógeno fácilmente asimilable sobre las características de hidromieles
Orellana, Alejandra; Sari, Santiago Eduardo; Marini, Gina Verónica; Peinado Manzur, Horacio Hernan; Gaggiotti, Monica Del Carmen; Gonzalez, Magali Lucia Rosa; Mercado, Laura Analia; Combina, Mariana; Massera, Ariel Fernando (Asociación Argentina de Microbiología, 2021-10-21)Argentina es el quinto productor y el segundo exportador mundial de miel a granel. Un producto atractivo para el agregado de valor en miel es la elaboración de hidromiel. Esta bebida se obtiene mediante la fermentación ... -
Efecto del tratamiento con microondas sobre las características microbiológicas y fisicoquímicas de jugos de uva de diferentes varietales
Massera, Ariel Fernando; Rojo, Cecilia; Audero, Gabriela Maria; Paez, Roxana Beatriz; Combina, Mariana; Sari, Santiago Eduardo (Ministro de Ciencia y Tecnología, Gobierno de la Provincia de Córdoba, 2022-11-10)La producción de uva argentina se destina principalmente a la obtención de vino y mosto de uva concentrado. Durante la elaboración de estos productos, las uvas trasladadas a bodega son descobajadas y estrujadas para obtener ... -
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 ...