Chemical and physical properties of some hazelnut varieties grown in Portugal
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10198/23834 |
Resumo: | Hazelnuts are one of the most appreciated nuts worldwide due to their unique organoleptic and nutritional characteristics. The present work intended to analyse several physical and chemical properties of different hazelnut varieties grown in Portugal, namely Tonda de Giffoni, Grada de Viseu, Segorbe, Longa de Espanha, Butler, Gunslebert, and Negreta. In general, the results revealed statistically significant differences between the varieties under study. The Gunslebert had more elongated hazelnuts and with heavier shelled fruits, while the kernels of the Grada de Viseu revealed to be heavier. Grada de Viseu was harder in the shell, Gunslebert had a harder core, and Segorbe was more resistant to fracture. Fat was the more representative component for all varieties and in some cases the values of moisture and water activity were over the recommended amount ( 0.62). Tonda de Giffoni was the variety with the highest induction time, indicating the highest oxidation stability. Moreover, discriminant analysis revealed that the variables more important to distinguish the varieties were protein ( = 0.007) and water activity ( = 0.010). The results of this study help to better understand the differences between some hazelnut varieties that are cultivated in Portugal, which gives important hints for all players in the hazelnut sector. |
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Chemical and physical properties of some hazelnut varieties grown in PortugalChemical propertiesHazelnutsPhysical propertiesSpecific extinction coefficientsHazelnuts are one of the most appreciated nuts worldwide due to their unique organoleptic and nutritional characteristics. The present work intended to analyse several physical and chemical properties of different hazelnut varieties grown in Portugal, namely Tonda de Giffoni, Grada de Viseu, Segorbe, Longa de Espanha, Butler, Gunslebert, and Negreta. In general, the results revealed statistically significant differences between the varieties under study. The Gunslebert had more elongated hazelnuts and with heavier shelled fruits, while the kernels of the Grada de Viseu revealed to be heavier. Grada de Viseu was harder in the shell, Gunslebert had a harder core, and Segorbe was more resistant to fracture. Fat was the more representative component for all varieties and in some cases the values of moisture and water activity were over the recommended amount ( 0.62). Tonda de Giffoni was the variety with the highest induction time, indicating the highest oxidation stability. Moreover, discriminant analysis revealed that the variables more important to distinguish the varieties were protein ( = 0.007) and water activity ( = 0.010). The results of this study help to better understand the differences between some hazelnut varieties that are cultivated in Portugal, which gives important hints for all players in the hazelnut sector.This study was supported by the National Funds through the FCT-Foundation for Science and Technology, I.P., within the scope of the projects Refª UIDB/00681/2020 and UID/AGR/00690/2019Biblioteca Digital do IPBFerrão, Ana CristinaGuiné, Raquel P.F.Ramalhosa, ElsaLopes, ArmindaRodrigues, CláudiaMartins, HugoGonçalves, RobertoCorreia, Paula2021-08-30T09:21:26Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/23834engFerrão, Ana Cristina; Guiné, Raquel P. F.; Ramalhosa, Elsa; Lopes, Arminda; Rodrigues, Cláudia; Martins, Hugo; Gonçalves, Roberto; Correia, Paula M.R. (2021). Chemical and physical properties of some hazelnut varieties grown in Portugal. Agronomy. ISSN 2073-4395. 11:8, p. 1-142073-439510.3390/agronomy11081476info: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:RCAAP2023-11-21T10:53:18Zoai:bibliotecadigital.ipb.pt:10198/23834Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:14:46.221620Repositório 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 and physical properties of some hazelnut varieties grown in Portugal |
title |
Chemical and physical properties of some hazelnut varieties grown in Portugal |
spellingShingle |
Chemical and physical properties of some hazelnut varieties grown in Portugal Ferrão, Ana Cristina Chemical properties Hazelnuts Physical properties Specific extinction coefficients |
title_short |
Chemical and physical properties of some hazelnut varieties grown in Portugal |
title_full |
Chemical and physical properties of some hazelnut varieties grown in Portugal |
title_fullStr |
Chemical and physical properties of some hazelnut varieties grown in Portugal |
title_full_unstemmed |
Chemical and physical properties of some hazelnut varieties grown in Portugal |
title_sort |
Chemical and physical properties of some hazelnut varieties grown in Portugal |
author |
Ferrão, Ana Cristina |
author_facet |
Ferrão, Ana Cristina Guiné, Raquel P.F. Ramalhosa, Elsa Lopes, Arminda Rodrigues, Cláudia Martins, Hugo Gonçalves, Roberto Correia, Paula |
author_role |
author |
author2 |
Guiné, Raquel P.F. Ramalhosa, Elsa Lopes, Arminda Rodrigues, Cláudia Martins, Hugo Gonçalves, Roberto Correia, Paula |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Ferrão, Ana Cristina Guiné, Raquel P.F. Ramalhosa, Elsa Lopes, Arminda Rodrigues, Cláudia Martins, Hugo Gonçalves, Roberto Correia, Paula |
dc.subject.por.fl_str_mv |
Chemical properties Hazelnuts Physical properties Specific extinction coefficients |
topic |
Chemical properties Hazelnuts Physical properties Specific extinction coefficients |
description |
Hazelnuts are one of the most appreciated nuts worldwide due to their unique organoleptic and nutritional characteristics. The present work intended to analyse several physical and chemical properties of different hazelnut varieties grown in Portugal, namely Tonda de Giffoni, Grada de Viseu, Segorbe, Longa de Espanha, Butler, Gunslebert, and Negreta. In general, the results revealed statistically significant differences between the varieties under study. The Gunslebert had more elongated hazelnuts and with heavier shelled fruits, while the kernels of the Grada de Viseu revealed to be heavier. Grada de Viseu was harder in the shell, Gunslebert had a harder core, and Segorbe was more resistant to fracture. Fat was the more representative component for all varieties and in some cases the values of moisture and water activity were over the recommended amount ( 0.62). Tonda de Giffoni was the variety with the highest induction time, indicating the highest oxidation stability. Moreover, discriminant analysis revealed that the variables more important to distinguish the varieties were protein ( = 0.007) and water activity ( = 0.010). The results of this study help to better understand the differences between some hazelnut varieties that are cultivated in Portugal, which gives important hints for all players in the hazelnut sector. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-30T09:21:26Z 2021 2021-01-01T00:00:00Z |
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/10198/23834 |
url |
http://hdl.handle.net/10198/23834 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ferrão, Ana Cristina; Guiné, Raquel P. F.; Ramalhosa, Elsa; Lopes, Arminda; Rodrigues, Cláudia; Martins, Hugo; Gonçalves, Roberto; Correia, Paula M.R. (2021). Chemical and physical properties of some hazelnut varieties grown in Portugal. Agronomy. ISSN 2073-4395. 11:8, p. 1-14 2073-4395 10.3390/agronomy11081476 |
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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