title: Vine-shoot waste aqueous extract applied as foliar fertilizer to grapevines: Effect on amino acids and fermentative volatile content.
abstract: The aim of this work was to study the influence of foliar applications of different wood aqueous extracts on the amino acid content of musts and wines from Airén variety; and to study their relationship with the volatile compounds formed during alcoholic fermentation. For this purpose, the foliar treatments proposed were a vine-shoot aqueous extract applied in one and two times, and an oak extract which was only applied once. Results obtained show the potential of Airén vine-shoot waste aqueous extracts to be used as foliar fertilizer, enhancing the wine amino acid content especially when they were applied once. Similar results were observed with the aqueous oak extract. Regarding wine fermentative volatile compounds, there is a close relationship between musts and their wines amino acid content allowing us to discuss about the role of proline during the alcoholic fermentation and the generation of certain volatiles.
authors.affiliation: Universidad de Castilla-La Mancha, E.T.S.I. Agrónomos y Montes, Cátedra de Química Agrícola, Avda. de España s/n, 02071 Albacete, Spain.
authors.forename: R
authors.initials: R
authors.lastname: Sánchez-Gómez
authors.affiliation: Instituto de Ciencias de la Vid y del Vino (Gobierno de La Rioja-CSIC-Universidad de La Rioja), Carretera de Burgos Km 6, Finca La Grajera, 26007 Logroño, Spain.
authors.forename: T
authors.initials: T
authors.lastname: Garde-Cerdán
authors.affiliation: Universidad de Castilla-La Mancha, E.T.S.I. Agrónomos y Montes, Cátedra de Química Agrícola, Avda. de España s/n, 02071 Albacete, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Zalacain
authors.affiliation: ICAAM-Instituto de Ciências Agrárias e Ambientais Mediterrânicas, IIFA, Universidade de Évora, Núcleo da Mitra, Ap. 94, 7002-554 Évora, Portugal.
authors.forename: R
authors.initials: R
authors.lastname: Garcia
authors.affiliation: Departamento de Fitotecnia, Escola de Ciências e Tecnologia, ICAAM, Universidade de Évora, Núcleo da Mitra, Ap. 94, 7002-554 Évora, Portugal.
authors.forename: M J
authors.initials: MJ
authors.lastname: Cabrita
authors.affiliation: Universidad de Castilla-La Mancha, E.T.S.I. Agrónomos y Montes, Cátedra de Química Agrícola, Avda. de España s/n, 02071 Albacete, Spain. Electronic address: Rosario.Salinas@uclm.es.
authors.forename: M R
authors.initials: MR
authors.lastname: Salinas
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D005285:Fermentation; D005308:Fertilizers; D010936:Plant Extracts / Q000737:chemistry*; D018520:Plant Shoots / Q000737:chemistry; D013030:Spain; D027843:Vitis / Q000737:chemistry / Q000254:growth & development; D055549:Volatile Organic Compounds / Q000032:analysis*; D014866:Waste Products; D014920:Wine / Q000032:analysis*
chemical_list: D000596:Amino Acids; D005308:Fertilizers; D010936:Plant Extracts; D055549:Volatile Organic Compounds; D014866:Waste Products
keywords: Aroma; Foliar application; Grape; Nitrogen compounds; Oak; Vine-shoot extracts; Wine