Publication
Optimal harvesting period for cvs. Madural and Verdeal Transmontana, based on antioxidant potential and phenolic composition of olives
| dc.contributor.author | Sousa, Anabela | |
| dc.contributor.author | Malheiro, Ricardo | |
| dc.contributor.author | Casal, Susana | |
| dc.contributor.author | Bento, Albino | |
| dc.contributor.author | Pereira, J.A. | |
| dc.date.accessioned | 2016-11-16T17:05:45Z | |
| dc.date.available | 2016-11-16T17:05:45Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | In the present study we propose to determine an approximate optimum harvesting period for table olives and olive oil of two Portuguese olive cultivars (Madural and Verdeal Transmontana) based on phenolic modifications (HPLC/DAD) and antioxidant activity (scavenging capacity on 2,2-diphenyl-1- picrylhydrazyl and reducing power). Samples were collected from almost edibility to slightly overmature. The sum of polyphenols, as well as its most abundant components oleuropein and hydroxytyrosol, decreased during this maturation period, more intensively in Madural than Verdeal Transmontana. In their green stages an antioxidant potential loss was gradually observed in both olive cultivars, while in the latter purple-black phases a slight increase in the antioxidant activity was observed. Both phenolic profile and antioxidant activity were highly correlated with the maturation process. A principal component analysis showed the particular effect of maturation in both olive cultivars. Based on the acquired knowledge we can advance that, for these cultivars and geographical region, olives harvest for table olives, traditionally collected sooner, can be performed in the middle of September. For olive oil harvesting can occur in the first days of November, giving priority to cv. Madural rather than Verdeal Transmontana, in order to enhance the bioactivity, phenolic composition and stability of olive oils. | pt_PT |
| dc.description.sponsorship | Authors are grateful to the FCT (Fundaç~ao para a Ci^encia e a Tecnologia) for financial support to CIMO (PEst-OE/AGR/UI0690/ 2011) and REQUIMTE (PEst-C/EQB/LA0006/2011).We also thank for financial support to the Project “OlivaTMAD e Rede Tem atica de Informaç~ao e Divulgaç~ao da Fileira Olivícola em Tr as-os-Montes e Alto Douro” funded by PRODER Programme, Minist erio da Agricultura de Desenvolvimento Rural e das Pescas and Uni~ao Europeia e Fundo Europeu Agrícola de Desenvolvimento Rural. A. Sousa is grateful to FCT, POPH-QREN and FSE for her Ph.D. Grant (SFRH/BD/ 44445/2008). This manuscript is part of A. Sousa Ph.D. thesis. | pt_PT |
| dc.identifier.citation | Sousa, A.; Malheiro, R.; Casal, Susana; Bento, Albino; Pereira, J.A. (2015). Optimal harvesting period for cvs. Madural and Verdeal Transmontana, based on antioxidant potential and phenolic composition of olives. LWT - Food Science and Technology. ISSN 0023-6438. 62:2, p. 1120-1126 | pt_PT |
| dc.identifier.doi | 10.1016/j.lwt.2015.01.046 | pt_PT |
| dc.identifier.issn | 0023-6438 | |
| dc.identifier.uri | http://hdl.handle.net/10198/13509 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | Strategic Project - UI 690 - 2011-2012 | |
| dc.relation | Strategic Project - LA 6 - 2011-2012 | |
| dc.relation | DETERMINAÇÃO DO MOMENTO ÓPTIMO DE COLHEITA DAS CULTIVARES DE OLIVEIRA PERTENCENTES A DENOMINAÇÃO DE ORIGEM PROTEGIDA AZEITE DE TRÁS-OS-MONTES | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Maturation process | pt_PT |
| dc.subject | Olive cultivar | pt_PT |
| dc.subject | Phenolic profile | pt_PT |
| dc.subject | Antioxidant activity | pt_PT |
| dc.title | Optimal harvesting period for cvs. Madural and Verdeal Transmontana, based on antioxidant potential and phenolic composition of olives | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Strategic Project - UI 690 - 2011-2012 | |
| oaire.awardTitle | Strategic Project - LA 6 - 2011-2012 | |
| oaire.awardTitle | DETERMINAÇÃO DO MOMENTO ÓPTIMO DE COLHEITA DAS CULTIVARES DE OLIVEIRA PERTENCENTES A DENOMINAÇÃO DE ORIGEM PROTEGIDA AZEITE DE TRÁS-OS-MONTES | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FAGR%2FUI0690%2F2011/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6820 - DCRRNI ID/PEst-C%2FEQB%2FLA0006%2F2011/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F44445%2F2008/PT | |
| oaire.citation.endPage | 1126 | pt_PT |
| oaire.citation.issue | 2 | pt_PT |
| oaire.citation.startPage | 1120 | pt_PT |
| oaire.citation.title | LWT - Food Science and Technology | pt_PT |
| oaire.citation.volume | 62 | pt_PT |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6820 - DCRRNI ID | |
| person.familyName | Malheiro | |
| person.familyName | Bento | |
| person.familyName | Pereira | |
| person.givenName | Ricardo | |
| person.givenName | Albino | |
| person.givenName | José Alberto | |
| person.identifier.ciencia-id | D516-325A-9AD7 | |
| person.identifier.ciencia-id | 611F-80B2-A7C1 | |
| person.identifier.orcid | 0000-0002-7342-0511 | |
| person.identifier.orcid | 0000-0001-5215-785X | |
| person.identifier.orcid | 0000-0002-2260-0600 | |
| person.identifier.rid | N-9706-2016 | |
| person.identifier.rid | L-6798-2014 | |
| person.identifier.scopus-author-id | 25650218300 | |
| person.identifier.scopus-author-id | 35247694000 | |
| person.identifier.scopus-author-id | 57204366348 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | restrictedAccess | pt_PT |
| rcaap.type | article | pt_PT |
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