Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10198/23385 |
Resumo: | Oleaster (Olea europaea var. sylvestris), or the wild olive tree, has great interest as a source of genetic material for olive breeding programs. Nevertheless, information about its oil composition is scarce. In the present work, the characterization of oleaster fruit morphology and oil chemical composition from three different tree populations in Northeastern Portugal (Moncorvo, Alijó and Vila Nova de Foz Côa) was performed. The three studied populations presented some morphological differences in the fruits, but similar oil chemical composition. Oleic acid (68.9-70.6%) was the most abundant fatty acid. High variability was observed in total tocopherol content, ranging between 263 and 503 mg/kg. Additionally, high amounts of total sterols were found, from 1742 to 2198 mg/kg of oil. A rich composition in phenols was found with 14 phenolic compounds identified. The evaluated parameters for oleander oils allowed discriminating the oils according to the geographical origin and were consistent with those commonly found in olive oil, showing that they are particularly rich in antioxidants and can be exploited in breeding programs to increase the amounts of bioactive compounds in cultivated oils. |
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Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugalBioactive compoundsGenetic resourcesValorizationWild olive treeOleaster (Olea europaea var. sylvestris), or the wild olive tree, has great interest as a source of genetic material for olive breeding programs. Nevertheless, information about its oil composition is scarce. In the present work, the characterization of oleaster fruit morphology and oil chemical composition from three different tree populations in Northeastern Portugal (Moncorvo, Alijó and Vila Nova de Foz Côa) was performed. The three studied populations presented some morphological differences in the fruits, but similar oil chemical composition. Oleic acid (68.9-70.6%) was the most abundant fatty acid. High variability was observed in total tocopherol content, ranging between 263 and 503 mg/kg. Additionally, high amounts of total sterols were found, from 1742 to 2198 mg/kg of oil. A rich composition in phenols was found with 14 phenolic compounds identified. The evaluated parameters for oleander oils allowed discriminating the oils according to the geographical origin and were consistent with those commonly found in olive oil, showing that they are particularly rich in antioxidants and can be exploited in breeding programs to increase the amounts of bioactive compounds in cultivated oils.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 REQUIMTE (NORTE- 01- 0145- FEDER-LAQV (UIDB/50006/2020). This work was also supported by PRODER project OliveOld—Identificação e caraterização de oliveiras centenárias para obtenção de produtos diferenciados” no. 53988. Nuno Rodrigues thanks to National funding by FCT—Foundation for Science and Technology, P.I., through the institutional scientific employment program-contract.Biblioteca Digital do IPBRodrigues, NunoPinho, TeresaCasal, SusanaPeres, António M.Baptista, PaulaPereira, J.A.2018-01-19T10:00:00Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/23385engRodrigues, Nuno; Pinho, Teresa; Casal, Susana; Peres, António M.; Baptista, Paula; Pereira, José Alberto (2020). Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal. Applied Sciences. ISSN 2076-3417. 10:18, p. 1-1410.3390/APP10186414info: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:RCAAP2023-11-21T10:52:17Zoai:bibliotecadigital.ipb.pt:10198/23385Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:14:23.320991Repositório 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 |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
title |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
spellingShingle |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal Rodrigues, Nuno Bioactive compounds Genetic resources Valorization Wild olive tree |
title_short |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
title_full |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
title_fullStr |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
title_full_unstemmed |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
title_sort |
Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal |
author |
Rodrigues, Nuno |
author_facet |
Rodrigues, Nuno Pinho, Teresa Casal, Susana Peres, António M. Baptista, Paula Pereira, J.A. |
author_role |
author |
author2 |
Pinho, Teresa Casal, Susana Peres, António M. Baptista, Paula 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 Pinho, Teresa Casal, Susana Peres, António M. Baptista, Paula Pereira, J.A. |
dc.subject.por.fl_str_mv |
Bioactive compounds Genetic resources Valorization Wild olive tree |
topic |
Bioactive compounds Genetic resources Valorization Wild olive tree |
description |
Oleaster (Olea europaea var. sylvestris), or the wild olive tree, has great interest as a source of genetic material for olive breeding programs. Nevertheless, information about its oil composition is scarce. In the present work, the characterization of oleaster fruit morphology and oil chemical composition from three different tree populations in Northeastern Portugal (Moncorvo, Alijó and Vila Nova de Foz Côa) was performed. The three studied populations presented some morphological differences in the fruits, but similar oil chemical composition. Oleic acid (68.9-70.6%) was the most abundant fatty acid. High variability was observed in total tocopherol content, ranging between 263 and 503 mg/kg. Additionally, high amounts of total sterols were found, from 1742 to 2198 mg/kg of oil. A rich composition in phenols was found with 14 phenolic compounds identified. The evaluated parameters for oleander oils allowed discriminating the oils according to the geographical origin and were consistent with those commonly found in olive oil, showing that they are particularly rich in antioxidants and can be exploited in breeding programs to increase the amounts of bioactive compounds in cultivated oils. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-19T10:00:00Z 2020 2020-01-01T00:00:00Z |
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/10198/23385 |
url |
http://hdl.handle.net/10198/23385 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Rodrigues, Nuno; Pinho, Teresa; Casal, Susana; Peres, António M.; Baptista, Paula; Pereira, José Alberto (2020). Chemical characterization of oleaster, olea europaea var. sylvestris (mill.) lehr., oils from different locations of northeast portugal. Applied Sciences. ISSN 2076-3417. 10:18, p. 1-14 10.3390/APP10186414 |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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