title: Grapevine-shoot stilbene extract as a preservative in red wine.
abstract: This paper reports the use of a grapevine-shoot stilbene extract (Vineatrol®) as a preservative in red wine. Its effectiveness to preserve red wine quality under two different winemaking systems (traditional and Ganimede) was studied at bottling and after twelve months of storage in bottle. Enological parameters, color related parameters, volatile composition, sensory analysis and olfactometric profile were evaluated. At bottling wines treated with Vineatrol showed higher color related parameters and higher score in sensory analysis than those treated with SO2. The use of SO2 increased ester and alcohol volatile compounds in relation to the use of Vineatrol. Wine olfactometric profile was modified by Vineatrol addition. Two new odorant zones with high modified frequency appeared in wines treated with Vineatrol. After 12months of storage in bottle, wines treated with Vineatrol showed parameters related to oxidation. The weak point of the process seemed to be the evolution during the storage in bottle.
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Rancho de la Merced, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Ctra Trebujena, km 2.1, 11471 Jerez de la Frontera, Spain.
authors.forename: Rafaela
authors.initials: R
authors.lastname: Raposo
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Alameda del Obispo, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Avd. Menéndez Pidal, 14004 Córdoba, Spain.
authors.forename: María José
authors.initials: MJ
authors.lastname: Ruiz-Moreno
authors.affiliation: Instituto de Ciencias de la Vid y del Vino (ICVV), Gobierno de La Rioja-CSIC-Universidad de La Rioja, Ctra. Burgos, km. 6. Finca La Grajera, 26007 Logroño, Spain.
authors.forename: Teresa
authors.initials: T
authors.lastname: Garde-Cerdán
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Rancho de la Merced, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Ctra Trebujena, km 2.1, 11471 Jerez de la Frontera, Spain.
authors.forename: Belén
authors.initials: B
authors.lastname: Puertas
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Alameda del Obispo, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Avd. Menéndez Pidal, 14004 Córdoba, Spain.
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Moreno-Rojas
authors.affiliation: Instituto de Ciencias de la Vid y del Vino (ICVV), Gobierno de La Rioja-CSIC-Universidad de La Rioja, Ctra. Burgos, km. 6. Finca La Grajera, 26007 Logroño, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Gonzalo-Diago
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Rancho de la Merced, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Ctra Trebujena, km 2.1, 11471 Jerez de la Frontera, Spain.
authors.forename: Raúl
authors.initials: R
authors.lastname: Guerrero
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Alameda del Obispo, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Avd. Menéndez Pidal, 14004 Córdoba, Spain.
authors.forename: Víctor
authors.initials: V
authors.lastname: Ortíz
authors.affiliation: Instituto de Investigación y Formación Agraria y Pesquera (IFAPA) Centro Rancho de la Merced, Consejería de Agricultura, Pesca y Desarrollo Rural (CAPDR), Junta de Andalucía, Ctra Trebujena, km 2.1, 11471 Jerez de la Frontera, Spain. Electronic address: emma.cantos@juntadeandalucia.es.
authors.forename: Emma
authors.initials: E
authors.lastname: Cantos-Villar
mesh_terms: D003116:Color; D004952:Esters / Q000032:analysis; D005519:Food Preservation / Q000379:methods*; D010084:Oxidation-Reduction; D010636:Phenols; D012903:Smell; D013267:Stilbenes; D013649:Taste; D014920:Wine / Q000032:analysis*
chemical_list: D004952:Esters; D010636:Phenols; D013267:Stilbenes; C509818:vineatrol
keywords: Color; Olfactometry; Sensorial; Stilbene; Sulfur dioxide; Volatile compounds