Impact of frost on the morphology and chemical composition of cv. Santulhana olives
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/25110 |
Resumo: | Frost events and extreme weather phenomena greatly affect several characteristics of the olive fruit. This study evaluated the impact of frost on the morphology, composition (moisture, fat, fatty acids, tocopherols, and total phenolic contents), and antioxidant activity of olives of cv. Santulhana. A total of 14 trees from the same geographical region (Santulhão, northeast of Portugal) were chosen, including trees subjected or not subjected to frost conditions (n = 7 each). The results showed that frost led to morphological changes in olive fruits, particularly in terms of weight and diameter, which were imposed by a huge decrease in the moisture content (-20%). Fat relative content increased as a consequence of the water loss (+29% in fresh pulp weight), with a slight reduction of the relative abundance of saturated fatty acids (-4%) and tocopherol contents in the fat (-17%). However, the total phenolic contents and antioxidant activity were severely affected (-70% and -42%, respectively), with potential consequences for the olive oil stability and sensorial attributes. Principal component analysis showed that both morphological and chemical parameters could be used as biomarkers to identify olives subjected or not subjected to frost. The overall negative impact of frost on the minor antioxidant contents of cv. Santulhana olives may anticipate a quality loss of olive oils extracted from olives affected by frost. |
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Impact of frost on the morphology and chemical composition of cv. Santulhana olivesFrost events and extreme weather phenomena greatly affect several characteristics of the olive fruit. This study evaluated the impact of frost on the morphology, composition (moisture, fat, fatty acids, tocopherols, and total phenolic contents), and antioxidant activity of olives of cv. Santulhana. A total of 14 trees from the same geographical region (Santulhão, northeast of Portugal) were chosen, including trees subjected or not subjected to frost conditions (n = 7 each). The results showed that frost led to morphological changes in olive fruits, particularly in terms of weight and diameter, which were imposed by a huge decrease in the moisture content (-20%). Fat relative content increased as a consequence of the water loss (+29% in fresh pulp weight), with a slight reduction of the relative abundance of saturated fatty acids (-4%) and tocopherol contents in the fat (-17%). However, the total phenolic contents and antioxidant activity were severely affected (-70% and -42%, respectively), with potential consequences for the olive oil stability and sensorial attributes. Principal component analysis showed that both morphological and chemical parameters could be used as biomarkers to identify olives subjected or not subjected to frost. The overall negative impact of frost on the minor antioxidant contents of cv. Santulhana olives may anticipate a quality loss of olive oils extracted from olives affected by frost.The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support by national funds FCT/MCTES to CIMO (UIDB/00690/2020) and to REQUIMTELAQV (UIDB/50006/2020) units and to the Associate Laboratories for Green Chemistry-LAQV (UIDB/50006/2020) and SusTEC (LA/P/0007/2020). Nuno Rodrigues thanks to National funding by FCT—Foundation for Science and Technology, P.I., through the institutional scientific employment program-contract. Ana I. Rodrigues thanks the financial support by OleaChain project “Skills for sustainability and innovation in the value chain of traditional olive groves in the Northern Interior of Portugal” (NORTE-06-3559-FSE-000188).Biblioteca Digital do IPBRodrigues, NunoCasal, SusanaRodrigues, Ana I.Cruz, RebecaPeres, António M.Pereira, J.A.2022-02-22T16:49:02Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/25110engRodrigues, Nuno; Casal, Susana; Rodrigues, Ana I.; Cruz, Rebeca; Peres, António M.; Pereira, J.A. (2022). Impact of frost on the morphology and chemical composition of cv. Santulhana olives. Applied Sciences. ISSN 2076-3417. 12:3, p. 1-112076-341710.3390/app12031222info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:56:11Zoai:bibliotecadigital.ipb.pt:10198/25110Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:15:49.826842Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
title |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
spellingShingle |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives Rodrigues, Nuno |
title_short |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
title_full |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
title_fullStr |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
title_full_unstemmed |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
title_sort |
Impact of frost on the morphology and chemical composition of cv. Santulhana olives |
author |
Rodrigues, Nuno |
author_facet |
Rodrigues, Nuno Casal, Susana Rodrigues, Ana I. Cruz, Rebeca Peres, António M. Pereira, J.A. |
author_role |
author |
author2 |
Casal, Susana Rodrigues, Ana I. Cruz, Rebeca Peres, António M. Pereira, J.A. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Rodrigues, Nuno Casal, Susana Rodrigues, Ana I. Cruz, Rebeca Peres, António M. Pereira, J.A. |
description |
Frost events and extreme weather phenomena greatly affect several characteristics of the olive fruit. This study evaluated the impact of frost on the morphology, composition (moisture, fat, fatty acids, tocopherols, and total phenolic contents), and antioxidant activity of olives of cv. Santulhana. A total of 14 trees from the same geographical region (Santulhão, northeast of Portugal) were chosen, including trees subjected or not subjected to frost conditions (n = 7 each). The results showed that frost led to morphological changes in olive fruits, particularly in terms of weight and diameter, which were imposed by a huge decrease in the moisture content (-20%). Fat relative content increased as a consequence of the water loss (+29% in fresh pulp weight), with a slight reduction of the relative abundance of saturated fatty acids (-4%) and tocopherol contents in the fat (-17%). However, the total phenolic contents and antioxidant activity were severely affected (-70% and -42%, respectively), with potential consequences for the olive oil stability and sensorial attributes. Principal component analysis showed that both morphological and chemical parameters could be used as biomarkers to identify olives subjected or not subjected to frost. The overall negative impact of frost on the minor antioxidant contents of cv. Santulhana olives may anticipate a quality loss of olive oils extracted from olives affected by frost. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-02-22T16:49:02Z 2022 2022-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/25110 |
url |
http://hdl.handle.net/10198/25110 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Rodrigues, Nuno; Casal, Susana; Rodrigues, Ana I.; Cruz, Rebeca; Peres, António M.; Pereira, J.A. (2022). Impact of frost on the morphology and chemical composition of cv. Santulhana olives. Applied Sciences. ISSN 2076-3417. 12:3, p. 1-11 2076-3417 10.3390/app12031222 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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