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Application of vine-shoot chips during winemaking and aging of Malbec and Bonarda wines
Fanzone, Martín Leandro; Catania, Anibal Alejandro; Assof, Mariela Vanesa; Jofre, Viviana Patricia; Prieto, Jorge Alejandro; Gil Quiroga, Daniela; Lacognata Sottano, Juan; Sari, Santiago Eduardo (MDPI Publication, 2021-07)The growing demand in recent years for sustainable wine production has led to the management of waste and by-products. Among them, vine-shoots could be used as additives comparable to the oak fragments widely employed in ... -
Combined effect of temperature and ammonium addition on fermentation profile and volatile aroma composition of Torrontés Riojano wines
Perez, Maria Dolores; Assof, Mariela Vanesa; Bolcato, Esteban Augusto; Sari, Santiago Eduardo; Fanzone, Martín Leandro (2018-01)The effects of process temperature and ammonium supplementation on fermentation profile, volatile aroma composition and wine sensory characteristics were evaluated in Torrontés Riojano (Vitis vinifera L.) wines from Mendoza ... -
Determinación simultánea de carotenoides y fenoles en subproductos agroalimentarios: Microextracción Líquido-Sólido Asistida por Ultrasonido optimizada por metodologías de diseño experimental
Jofre, Viviana Patricia; Assof, Mariela Vanesa; Vargas, Eliana Vanina; Fanzone, Martín Leandro (Universidad Juan Agustín Maza, 2020)En el presente trabajo se desarrolló un nuevo método de microextracción líquido-sólido asistido por ultrasonido para determinar biocompuestos en subproductos agroalimentarios. El método analítico propuesto para extraer ... -
Efecto de la técnica de sangrado sobre la composición fenólica de vinos cv. Malbec = Effect of saignée on phenolic composition of Malbec wines
Fanzone, Martín Leandro; Assof, Mariela Vanesa; Peña Neira, Alvaro; Zamora, Fernando; Jofre, Viviana Patricia (Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias, 2013)El mercado actual exige, en gran parte, la disponibilidad de vinos estructurados con coloraciones intensas, razón por la cual los enólogos evalúan constantemente diversas variantes tecnológicas tendientes a satisfacer los ... -
Effect of different closure types and storage temperatures on the color and sensory characteristics development of Argentinian Torrontes Riojano white wines aged in bottles
Castellanos, Erika Romina; Jofre, Viviana Patricia; Fanzone, Martín Leandro; Assof, Mariela Vanesa; Catania, Anibal Alejandro; Diaz Sambueza, Alejandra Mariela; Heredia, Francisco José; Mercado, Laura Analia (Elsevier, 2021-06)During aging, most bottled white wines lose their distinctive organoleptic characteristics according to their storage conditions (closure, temperature, time). However, the effect of these factors on organoleptic characteristics ... -
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 ... -
Enzymatic activities produced by mixed Saccharomyces and non-Saccharomyces cultures : relationship with wine volatile composition
Maturano, Yolanda Paola; Assof, Mariela Vanesa; Fabani, Maria Paula; Nally, María Cristina; Jofre, Viviana Patricia; Rodriguez Assaf, Leticia Anahi; Toro, Maria Eugenia; Vazquez, Fabio; Castellanos de Figueroa, Lucía Inés (2015-11)During certain wine fermentation processes, yeasts, and mainly non-Saccharomyces strains, produce and secrete enzymes such as b-glucosidases, proteases, pectinases, xylanases and amylases. The effects of enzyme activity ... -
Evaluation of dihydroquercetin-3-O-glucoside from Malbec grapes as copigment of malvidin-3-O-glucoside
Fanzone, Martín Leandro; González-Manzano, Susana; Pérez-Alonso, Joaquín; Escribano-Bailón, María Teresa; Jofre, Viviana Patricia; Assof, Mariela Vanesa; Santos-Buelga, Celestino (2015-05-15)Malbec is a wine grape variety of great phenolic potential characterized for its high levels of anthocyanins and dihydroflavonols. To evaluate the possible implication of dihydroflavonols in the expression of red wine color ... -
Free Volatile Compounds of cv. Pedro Giménez (Vitis vinifera L.) White Grape Must Grown in San Juan, Argentina
Maturano, Yolanda Paola; Nally, María Cristina; Assof, Mariela Vanesa; Toro, Maria Eugenia; Castellanos de Figueroa, Lucía Inés; Jofre, Viviana Patricia; Vazquez, Fabio (2018)The free aromatic composition of must from Pedro Giménez grapes, grown in San Juan, Argentina, was characterised. Samples from the vintages of 2008 and 2009 were analysed by gas chromatography–mass spectrometry–solid phase ... -
Impact of closure type and storage temperature on chemical and sensory composition of Malbec wines (Mendoza, Argentina) during aging in bottle
Giuffrida, María Lourdes; Ubeda, Cristina; Heredia, Francisco José; Catania, Anibal Alejandro; Assof, Mariela Vanesa; Fanzone, Martín Leandro; Jofre, Viviana Patricia (Elsevier, 2019-07)Malbec is the flagship variety of Argentina mainly due to its high oenological value and plasticity to obtain different wine styles. During bottled aging, the chemical and organoleptic composition of wines is subject to ... -
Impact of phenolic and polysaccharidic composition on commercial value of Argentinean Malbec and Cabernet Sauvignon wines
Fanzone, Martín Leandro; Peña Neira, Alvaro; Gil, Mariona; Jofre, Viviana Patricia; Assof, Mariela Vanesa; Zamora, Fernando (Elsevier, 2012-01)Knowledge of the chemical composition of wine and its association with the commercial value constitutes an objective tool to assess quality and can be used as a marketing strategy. Phenolic compounds are very important ... -
Microwave-assisted maceration and stems addition in Bonarda grapes: Effects on wine chemical composition over two vintages
Fanzone, Martín Leandro; Coronado, Ignacio Leon; Sari, Santiago Eduardo; Catania, Anibal Alejandro; Gil i Cortiella, Mariona; Assof, Mariela Vanesa; Jofre, Viviana Patricia; Ubeda, Cristina; Peña Neira, Alvaro (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 ... -
Mutagenesis, screening and isolation of Brettanomyces bruxellensis mutants with reduced 4-ethylphenol production
Alvarez Gaona, Izmari Jasel; Assof, Mariela Vanesa; Jofre, Viviana Patricia; Combina, Mariana; Ciklic, Ivan Francisco (Springer, 2021-01)The use of non-conventional yeast species to obtain interesting flavors and aromas has become a new trend in the fermented beverages industry. Among such species, Brettanomyces bruxellensis (B. bruxellensis) has been ... -
Phenolic characterisation of red wines from different grape varieties cultivated in Mendoza province (Argentina)
Fanzone, Martín Leandro; Zamora, Fernando; Jofre, Viviana Patricia; Assof, Mariela Vanesa; Gómez Cordovés, Carmen; Peña Neira, Alvaro (Wiley, 2012-02)Background: Knowledge of the chemical composition of wine and its association with the grape variety/cultivar is of paramount importance in oenology and a necessary tool for marketing. Phenolic compounds are very important ... -
Radiaciones no ionizantes y madera de sarmientos: Estrategias tecnológicas innovadoras para la crianza de vinos tintos
Fanzone, Martín Leandro; Jofre, Viviana Patricia; Mastropietro, Miguel; Assof, Mariela Vanesa; Catania, Anibal Alejandro; Aliquo, Gustavo Alberto; Prieto, Jorge Alejandro; Lacognata Sottano, Juan; Nuñez, Ines; Sari, Santiago Eduardo (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 ... -
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
Sturm, Maria Elena; Assof, Mariela Vanesa; Fanzone, Martín Leandro; Martínez, Claudio; Ganga, M. Angélica; Jofre, Viviana Patricia; Ramirez, María Laura; Combina, Mariana (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 ... -
Selection of indigenous Saccharomyces cerevisiae strains to ferment red musts at low temperature
Massera, Ariel Fernando; Assof, Mariela Vanesa; Sturm, Maria Elena; Sari, Santiago Eduardo; Jofre, Viviana Patricia; Cordero-Otero, Ricardo; Combina, Mariana (2012-03)The aim of this work was to select native Saccharomyces cerevisiae strains to conduct the alcoholic fermentation of red must at low temperature (15°C), thus producing volatile compounds that enhance the aromatic profile ... -
Spray-dried Ancellotta red wine: natural colorant with potential for food applications
Alvarez Gaona, Izmari Jasel; Fanzone, Martín Leandro; Sari, Santiago Eduardo; Assof, Mariela Vanesa; Perez, Maria Dolores; Chirife, Jorge; Zamora, María Clara (Springer, 2019-10-04)Ancellotta red wine (Vitis vinifera L.) was encapsulated by spray-drying (inlet and outlet temperatures were 145 °C and 70 °C, respectively) to obtain a wine powder with a low water activity (aw) using maltodextrin DE10 ... -
Volatile Profile Characterization of Extra Virgin Olive Oils from Argentina by HS-SPME/GC-MS and Multivariate Pattern Recognition Tools
Fernández, María de Los Ángeles; Assof, Mariela Vanesa; Jofre, Viviana Patricia; Silva, María Fernanda (2014-11)The distinctive aroma of virgin olive oil is attributed to a large number of chemical compounds of different classes such as aldehydes, alcohols, esters, hydrocarbons, ketones, furans, and other volatile compounds that are ...