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Kaolin foliar spray induces positive modifications in volatile compounds and fruit quality of Touriga-Nacional red wine

2024Journal article Open access
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dc.contributor.authorDinis, Lia Tânia
dc.contributor.authorPereira, Sandra
dc.contributor.authorFraga, Irene
dc.contributor.authorRocha, Sílvia M.
dc.contributor.authorCosta, Carina
dc.contributor.authorMartins, Cátia
dc.contributor.authorVilela, Alice
dc.contributor.authorArrobas, Margarida
dc.contributor.authorMoutinho-Pereira, José
dc.date.accessioned2024-07-31T14:46:15Z
dc.date.available2024-07-31T14:46:15Z
dc.date.issued2024
dc.description.abstractSolar radiation and temperature play crucial roles in grapevine metabolic processes and are known to have a positive impact on grape berry composition; however, excessive exposure to these factors can be detrimental. Kaolin-based particle film technology has emerged as a valuable solution for mitigating the effects of heat and water stresses in vineyards. This work aimed to evaluate the effects of kaolin application on the phenolic composition, chromatic characteristics, oenological parameters, volatile compounds and sensory profile of red wine. The study was carried out in one growing season in the commercial vineyard “Quinta dos Aciprestes” in the Douro Superior sub-region. Twelve rows in triplicate of the Touriga-Nacional variety underwent foliar kaolin treatment (applied at the pre-veraison stage, at the manufacturerrecommended and -tested dosage of 5 % (w/v)), and another twelve rows comprised the nontreated control group. Kaolin increased the phenolic compound and tartaric acid concentrations (2.4 % and 20.8 % respectively), total acidity (2.4 %), the deep reddish colour of the berries, total and coloured anthocyanin (2.8 %), and total and polymeric pigments (3.6 %); meanwhile, a decrease was observed in pH (-1.4 %) and alcoholic degree (-4.8 %). No significant differences were observed in any sensory parameters between the wine from the kaolin-treated and control vines, but the tasters found the aroma of the former to be fruitier and more complex, with an agreeable acidic taste and persistence. It was possible to group the volatile compounds into two distinct groups based on the results of the Pearson’s correlation matrix. This grouping corresponds to the sensory descriptors common to each of the respective volatiles. Overall, the results further support the potential efficacy of utilising kaolin to alleviate summer-related stress in grapevines.pt_PT
dc.description.sponsorshipThis work was supported by National Funds by FCT - Portuguese Foundation for Science and Technology as part of the project UIDB/04033/2020, UIDB/00616/2020, UIDP/00616/2020, through the Associate Laboratory LAQV-REQUIMTE (10.54499/LA/P/0008/2020, 10.54499/ UIDB/50006/2020 and 10.54499/UIDP/50006/2020) and the Project PRR Vine&Wine C644866286-011. The authors acknowledge ADVID for their collaboration, Eng. Rui Soares from Real Companhia Velha Company for the collaboration and efforts in providing the vineyard facilities and wine this study, and the collaboration of BASF, namely Paulo Matos. Dinis L.-T. thank the FCT and UTAD for the research contract (D.L. Law no. 57/2017-DOI: 10.54499/ DL57/2016/CP1378/CT0005).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDinis, Lia Tânia; Pereira, Sandra; Fraga, Irene; Rocha, Sílvia M.; Costa, Carina; Martins, Cátia; Vilela, Alice; Arrobas, Margarida; Moutinho-Pereira, José (2024). Kaolin foliar spray induces positive modifications in volatile compounds and fruit quality of Touriga-Nacional red wine. OENO One. ISSN 2494-1271. 58:2, p. 1-18pt_PT
dc.identifier.doi10.20870/oeno-one.2024.58.2.7945pt_PT
dc.identifier.issn2494-1271
dc.identifier.urihttp://hdl.handle.net/10198/30144
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherInternational Viticulture and Enology Societypt_PT
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relationChemistry Center - Vila Real
dc.relationChemistry Center - Vila Real
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationNot Available
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectClimate change mitigationpt_PT
dc.subjectkaolin applicationpt_PT
dc.subjectSensory profilept_PT
dc.subjectWine qualitypt_PT
dc.subjectWine secondary metabolitespt_PT
dc.titleKaolin foliar spray induces positive modifications in volatile compounds and fruit quality of Touriga-Nacional red winept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardTitleChemistry Center - Vila Real
oaire.awardTitleChemistry Center - Vila Real
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00616%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00616%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0008%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1378%2FCT0005/PT
oaire.citation.endPage18pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleOENO Onept_PT
oaire.citation.volume58pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamDL 57/2016
person.familyNameArrobas
person.givenNameMargarida
person.identifier.ciencia-id971C-B85B-1EC0
person.identifier.orcid0000-0002-4652-485X
person.identifier.scopus-author-id8575728800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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