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Mostrando ítems 61-80 de 96
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Microoxigenacion controlada en vinos
(2016-07-20)La Microoxigenación controlada en vinos es una técnica que se desarrolló en Francia y consiste en incorporar pequeñas cantidades de oxígeno a los vinos, de manera de imitar el proceso que ocurre en la barrica. El Ing. Agr ... -
Microwave-assisted maceration and stems addition in Bonarda grapes: Effects on wine chemical composition over two vintages
(Elsevier, 2022-03-30)Bonarda, the second red grape variety in Argentina, produces high yields per hectare generating, in several cases, low quality wines. Microwave-assisted extraction (MW) is a novel extraction technique for winemaking, widely ... -
Multi-enzyme production by pure and mixed cultures of Saccharomyces and non-Saccharomyces yeasts during wine fermentation
(Elsevier, 2012-04-02)Saccharomyces and non-Saccharomyces yeasts release enzymes that are able to transform neutral compounds of grape berries into active aromatic compounds, a process that enhances the sensory attributes of wines. So far, there ... -
Multi-method sensory approach to describe the effect of microwave-assisted extraction and addition of stems on the mouthfeel sensations of Bonarda wines from Mendoza (Argentina)
(PAGEPress, 2022-11-25)The Bonarda variety has been used as a base for common red wines due to its contribution to color and low level of astringency as a consequence of its relative low tannin concentration. The use of MicrowaveAssisted Extraction ... -
Natural occurrence of Ochratoxin A in musts, wines and grape vine fruits from grapes harvested in Argentina
(2010-08)In this study, ochratoxin A (OTA) occurrence in Argentinean musts, wines and dried vine fruits was evaluated, alongside with the performance of OchraStarTM columns for OTA extraction. In all the three matrices analyzed, ... -
Optimization of fermentation-relevant factors: A strategy to reduce ethanol in red wine by sequential culture of native yeasts
(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 ... -
Piranoantocianos : nuevos pigmentos en los vinos tintos. Aspectos científicos e implicancias tecnológicas.
(2006-08)El universo del color de los vinos tintos es complejo, dentro del mismo actúan diversos compuestos que provienen de la uva y otros que son formados durante los procesos de vinificación y añejamiento de los vinos. Las ... -
El Plan Estratégico Vitivinícola 2030 en Argentina = The 2030 Strategic Wine Plan in Argentina
(Facultad Latinoamericana de Ciencias Sociales (FLACSO), Sede Ecuador, 2023-06)El objetivo del artículo es analizar el proceso de elaboración y las características de la actualización a 2030 del Plan Estratégico Vitivinícola de Argentina (PEVI 2030). Para ello se describen su metodología de redacción, ... -
La poda tardía como estrategia vitícola para mejorar la calidad polifenólica de vinos Malbec en zonas cálidas
(Ediciones INTA, 2021-12)Las temperaturas más altas en los últimos años han generado un avance en la madurez de las bayas y han reducido el número de días a cosecha. También ha generado un desacople entre la acumulación de azúcar respecto a las ... -
Las políticas estatales sobre fraccionamiento de vinos en origen. Conflictos regionales, políticas y poder en la vitivinicultura argentina
(Facultad de Ciencias Políticas y Sociales, Universidad Nacional de Cuyo, 2013-12-11)El presente trabajo tiene como objetivo analizar las principales políticas estatales que han regulado el fraccionamiento de vinos en origen en Argentina, teniendo en cuenta el contexto de la agroindustria vitivinícola ... -
Probabilistic model for the spoilage wine yeast Dekkera bruxellensis as a function of pH, ethanol and free SO2 using time as a dummy variable
(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) ... -
Radiaciones no ionizantes y madera de sarmientos: Estrategias tecnológicas innovadoras para la crianza de vinos tintos
(Centro de Estudios Vitivinícolas y Agroindustriales, Universidad Juan Agustín Maza, 2022-12-20)Los objetivos del presente trabajo son: Analizar el impacto de chips de sarmientos de distintas variedades de vid, adicionados durante la crianza, sobre la composicion quimica (volatil y no volatil) y las caracteristicas ... -
Reflexiones en torno a la innovación tecnológica en la vitivinicultura de San Juan
(IADE, 2019-08-16)El presente artículo tiene por objetivo analizar y reflexionar sobre las trayectorias de algunas políticas de innovación para el sector vitivinícola del Instituto Nacional de Tecnología Agropecuaria (INTA) en la provincia ... -
Regulated Deficit Irrigation Alters Anthocyanins, Tannins and Sensory Properties of Cabernet Sauvignon Grapes and Wines
(2015-04)Four regulated deficit irrigation (RDI) regimes were applied to Cabernet Sauvignon grapes, which were analyzed for phenolics and also made into wine over three consecutive growing seasons. Relative to an industry standard ... -
Relation between coumarate decarboxylase and vinylphenol reductase activity with regard to the production of volatile phenols by native Dekkera bruxellensis strains under ‘wine-like’ conditions
(2015-08)Dekkera/Brettanomyces bruxellensis is considered a major cause of wine spoilage, and 4-ethylphenol and 4-ethylguaiacol are the most abundant off-aromas produced by this species. They are produced by decarboxylation of the ... -
Reportaje a Alcides Llorente: “La aptitud para la producción de vinos de calidad la encontramos en Neuquén, Río Negro, La Pampa y norte de Chubut”
(EEA Alto Valle, INTA, 2023-09)Ayer en una chacra me vi sorprendido de la ampliación que hicieron del cultivo inicial de uva de mesa, de 1 a 3 ha. En el fragor de su relato, la señora largó esta sentencia: "El motor que le cambió la cara a esta chacra ... -
Screening of Saccharomyces strains for the capacity to produce desirable fermentative compounds under the influence of different nitrogen sources in synthetic wine fermentations
(Elsevier, 2021-02)A collection of 33 Saccharomyces yeasts were used for wine fermentation with a sole nitrogen source: ammonium and four individual aroma-inducing amino acids. The fermentation performance and chemical wine composition were ... -
Selection of Native Non-Saccharomyces Yeasts with Biocontrol Activity against Spoilage Yeasts in Order to Produce Healthy Regional Wines
(MDPI, 2019-07)Two major spoilage yeasts in the wine industry, Brettanomyces bruxellensis and Zygosaccharomyces rouxii, produce off-flavors and gas, causing considerable economic losses. Traditionally, SO2 has been used in winemaking to ... -
Sensory and chemical effects of two alternatives of prefermentative cold soak in Malbec wines during winemaking and bottle ageing
(2015)Two alternatives of cold soak (CS), traditional external refrigeration (CS‐T) and use of solid CO2 (CS‐DI), were evaluated in Malbec wines and contrasted against a control (C) during winemaking and up to 24 months of bottle ... -
Sensory Impact of Extended Maceration and Regulated Deficit Irrigation on Washington State Cabernet Sauvignon Wines
(2013-12)Irrigation practices such as regulated deficit irrigation (RDI) and winemaking practices such as extended maceration have been experimentally evaluated from a chemical perspective but their impacts on sensory composition ...