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Foliar application of biostimulants improves nutritional and bioactive quality of walnuts

2024Journal article Open access
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dc.contributor.authorPascoalino, Liege
dc.contributor.authorPires, Tânia C.S.P.
dc.contributor.authorPinela, José
dc.contributor.authorRodrigues, M.A.
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarros, Lillian
dc.contributor.authorBarreira, João C.M.
dc.contributor.authorReis, Filipa S.
dc.date.accessioned2024-12-20T16:18:35Z
dc.date.available2024-12-20T16:18:35Z
dc.date.issued2024
dc.description.abstractOwing to their health benefits, walnuts are attracting interest as a good option for nutritious meals, thereby promoting their production. Furthermore, the adoption of ecologically and environmentally friendly agriculture strengthens biostimulant use as a sustainable complement to traditional fertilizers. This study evaluated the effects of different foliarapplied biostimulants in walnut tree orchards, in northeastern Portugal, on walnuts' chemical composition and bioactivity. RESULTS: Walnut samples were rich in fat (particularly the polyunsaturated linoleic acid), dietary fiber and protein. Sucrose was the most prevalent soluble sugar, followed by glucose and fructose. Studied samples also showed an antioxidant activity comparable (or superior) to that of Trolox. Some plant biostimulants (e.g. Sprint Plus®) had a positive impact on the nutritional composition of walnuts, more specifically by boosting tocopherol levels, besides improving the bioactivity of walnut extracts against specific bacteria. CONCLUSION: Overall, this research demonstrated that important quality traits of walnuts can be improved using sustainable agricultural bioproducts and practices.pt_PT
dc.description.sponsorshipThis work was supported by national funds through FCT/MCTES (PIDDAC): CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/2020) and UIDP/00690/2020 (DOI: 10.54499/UIDP/00690/2020); and SusTEC, L.A. Pascoalino/0007/2020 (DOI:10.54499/LA/P/0007/2020). The authors also thank the National funding by FCT – Foundation for Science and Technology, through the institutional scientific employment program, contract with L.Barros, and the individual scientific employment program, contract with JP (DOI: 10.54499/CEECIND/01011/2018/CP1578/CT0002), F.S. Reis (2021.03728.CEECIND) and J.C.M. Barreira (CEECIND/04479/2017). LAP thanks FCT for her individual research grant (UI/BD/153745/2022).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPascoalino, Liege Aguiar; Pires, Tânia C.S.P.; Pinela, José; Rodrigues, Manuel Ângelo; Ferreira, Isabel C.F.R.; Barros, Lillian; Barreira, João C.M.; Reis, Filipa S. (2024). Foliar application of biostimulants improves nutritional and bioactive quality of walnuts. Journal of the Science of Food and Agriculture. ISSN 0022-5142. 105:2, p. 1138–1146pt_PT
dc.identifier.doi10.1002/jsfa.13904pt_PT
dc.identifier.eissn1097-0010
dc.identifier.issn0022-5142
dc.identifier.urihttp://hdl.handle.net/10198/30764
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relationMountain Research Center
dc.relationMountain Research Center
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relationNot Available
dc.relationCYPonins: Cypress saponins as a possible bio-based alternative to address high-mortality rate tumours
dc.relationNot Available
dc.relationValorisation of bio-residues from apple industrial processing: application of added-value compounds as food and nutraceutical additives
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectJuglans regia Lpt_PT
dc.subjectPlant biostimulantspt_PT
dc.subjectNutritional valuept_PT
dc.subjectChemical compositionpt_PT
dc.subjectBioactivitypt_PT
dc.titleFoliar application of biostimulants improves nutritional and bioactive quality of walnutspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardTitleMountain Research Center
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardTitleNot Available
oaire.awardTitleCYPonins: Cypress saponins as a possible bio-based alternative to address high-mortality rate tumours
oaire.awardTitleNot Available
oaire.awardTitleValorisation of bio-residues from apple industrial processing: application of added-value compounds as food and nutraceutical additives
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2018/CEECIND%2F01011%2F2018%2FCP1578%2FCT0002/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F04479%2F2017%2FCP1403%2FCT0002/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/UI%2FBD%2F153745%2F2022/PT
oaire.citation.titleJournal of the Science of Food and Agriculturept_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamCEEC IND 2018
oaire.fundingStreamCEEC IND4ed
oaire.fundingStreamCEEC IND 2017
oaire.fundingStreamOE
person.familyNamePascoalino
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person.givenNameTânia C.S.P.
person.givenNameJosé
person.givenNameManuel Ângelo
person.givenNameIsabel C.F.R.
person.givenNameLillian
person.givenNameJoão C.M.
person.givenNameFilipa S.
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project.funder.nameFundação para a Ciência e a Tecnologia
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rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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