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Oak extract application to grapevines as a plant biostimulant to increase wine poliphenols

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dc.contributor.author Alonso, Gonzalo L. es_ES
dc.contributor.author CadahÍa, Estrella es_ES
dc.contributor.author Pardo Minguez, Francisco es_ES
dc.contributor.author Pardo Garcia, Ana Isabel es_ES
dc.contributor.author Martinez Gil, Ana Maria es_ES
dc.contributor.author Salinas, M. Rosario es_ES
dc.date.accessioned 2014-12-12T07:10:11Z
dc.date.available 2014-12-12T07:10:11Z
dc.date.issued 2014 es_ES
dc.identifier.citation Food research international, 2014, 150-160 es_ES
dc.identifier.uri http://hdl.handle.net/10578/4337
dc.description.abstract Oak extract is a mixture of compounds including phenolics (volatiles and non volatiles), which could act as plant biostimulant if they are able to modulate plant physiological response. It is known that it can modify grape volatile composition after the application over grapevines, impacting on wine aroma, but no studies have been carried out on phenolic composition. So, the aim of this work was to evaluate the phenolic composition of wines elaborated from Monastrell grapevines treated with a commercial oak extract in order to study its biostimulant activity. Several families of polyphenols were studied, including phenolic acids, stilbenes, flavanols, flavonols and anthocyanins, which were analyzed by HPLC-DAD-MS. Results showed oak extract could be considered like an important biostimulant of grape polyphenols, since it affected grape composition, producing less alcoholic and acid wines with higher colour intensity, lower shade and so a more stable colour and higher content of polyphenols such as gallic acid, hydroxycynnamoyltartaric acids, acylated anthocyanins, flavanols and stilbenes. es_ES
dc.format text/plain en_US
dc.language.iso es en_US
dc.rights info:eu-repo/semantics/openAccess en_US
dc.subject Física química y matemáticas es_ES
dc.subject Ingenierías es_ES
dc.title Oak extract application to grapevines as a plant biostimulant to increase wine poliphenols es_ES
dc.type info:eu-repo/semantics/article en_US


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