Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco

Detalhes bibliográficos
Autor(a) principal: Taous, F.
Data de Publicação: 2020
Outros Autores: Amenzou, N., Marah, H., Maia, R., Máguas, C., Bahmad, L., Kelly, S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/46882
Resumo: Argan oil is obtained from the fruits of the Argan tree (Arganiaspinosa), an endemic species from south-western Morocco. Oil is extracted from Argan seeds through a traditional or a semi-automated process. In the case of edible oils, seeds are roasted before extraction, but when the oil is used for cosmetics, no seed roasting is required. Several cooperatives and private enterprises are established in south-west Morocco producing and commercializing edible and Cosmetic Argan oil. The identification of the geographical origin of Argan oils is attracting great interest from consumers and producers since it may be used as a criterion for guaranteeing quality and authenticity. Stable isotope techniques can provide useful information on the origin of food products. For these reasons the natural abundance isotopic ratios of Carbon, Oxygen and Nitrogen were measured using isotope ratio mass spectrometry (IRMS) for samples (cosmetics oil, seed) produced between July and August 2012 in different Moroccan cooperatives with certified PGI (protected geographical indication) label and organic certification, representing five provenances in the southwest part of Morocco. These provenances are distinct on a Geographical, hydrological and climatic level: Essaouira, Agadir Idaou Tanane, chtouka Ait Baha, Taroudant and Tiznit. IRMS was selected as a reliable technique to characterise the stable carbon and oxygen isotope ‘fingerprints' of Moroccan Protected Geographical Indication (PGI) Argan oils and nitrogen isotope analysis of the Agan nut. Moreover, it demonstrated relationships between environmental parameters and the isotopic composition of plants coming from geographically distinct areas. The results obtained in this study indicate that it is possible to differentiate Argan oil producing areas, which can be associated with regional (cooperatives), and promote and protect the quality and commercial value of this important Moroccan plant product.
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spelling Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in MoroccoArgan oilCarbon oxygenNitrogen stable isotopesProtected geographical indicationStable isotope fingerprintArgan oil is obtained from the fruits of the Argan tree (Arganiaspinosa), an endemic species from south-western Morocco. Oil is extracted from Argan seeds through a traditional or a semi-automated process. In the case of edible oils, seeds are roasted before extraction, but when the oil is used for cosmetics, no seed roasting is required. Several cooperatives and private enterprises are established in south-west Morocco producing and commercializing edible and Cosmetic Argan oil. The identification of the geographical origin of Argan oils is attracting great interest from consumers and producers since it may be used as a criterion for guaranteeing quality and authenticity. Stable isotope techniques can provide useful information on the origin of food products. For these reasons the natural abundance isotopic ratios of Carbon, Oxygen and Nitrogen were measured using isotope ratio mass spectrometry (IRMS) for samples (cosmetics oil, seed) produced between July and August 2012 in different Moroccan cooperatives with certified PGI (protected geographical indication) label and organic certification, representing five provenances in the southwest part of Morocco. These provenances are distinct on a Geographical, hydrological and climatic level: Essaouira, Agadir Idaou Tanane, chtouka Ait Baha, Taroudant and Tiznit. IRMS was selected as a reliable technique to characterise the stable carbon and oxygen isotope ‘fingerprints' of Moroccan Protected Geographical Indication (PGI) Argan oils and nitrogen isotope analysis of the Agan nut. Moreover, it demonstrated relationships between environmental parameters and the isotopic composition of plants coming from geographically distinct areas. The results obtained in this study indicate that it is possible to differentiate Argan oil producing areas, which can be associated with regional (cooperatives), and promote and protect the quality and commercial value of this important Moroccan plant product.ElsevierRepositório da Universidade de LisboaTaous, F.Amenzou, N.Marah, H.Maia, R.Máguas, C.Bahmad, L.Kelly, S.2022-03-02T01:30:36Z2020-032020-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/46882eng10.1016/j.forc.2019.100198info: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:RCAAP2023-11-08T16:47:32Zoai:repositorio.ul.pt:10451/46882Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:57:59.712831Repositório 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 Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
title Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
spellingShingle Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
Taous, F.
Argan oil
Carbon oxygen
Nitrogen stable isotopes
Protected geographical indication
Stable isotope fingerprint
title_short Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
title_full Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
title_fullStr Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
title_full_unstemmed Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
title_sort Stable isotope ratio analysis as a new tool to trace the geographical origin of Argan oils in Morocco
author Taous, F.
author_facet Taous, F.
Amenzou, N.
Marah, H.
Maia, R.
Máguas, C.
Bahmad, L.
Kelly, S.
author_role author
author2 Amenzou, N.
Marah, H.
Maia, R.
Máguas, C.
Bahmad, L.
Kelly, S.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Taous, F.
Amenzou, N.
Marah, H.
Maia, R.
Máguas, C.
Bahmad, L.
Kelly, S.
dc.subject.por.fl_str_mv Argan oil
Carbon oxygen
Nitrogen stable isotopes
Protected geographical indication
Stable isotope fingerprint
topic Argan oil
Carbon oxygen
Nitrogen stable isotopes
Protected geographical indication
Stable isotope fingerprint
description Argan oil is obtained from the fruits of the Argan tree (Arganiaspinosa), an endemic species from south-western Morocco. Oil is extracted from Argan seeds through a traditional or a semi-automated process. In the case of edible oils, seeds are roasted before extraction, but when the oil is used for cosmetics, no seed roasting is required. Several cooperatives and private enterprises are established in south-west Morocco producing and commercializing edible and Cosmetic Argan oil. The identification of the geographical origin of Argan oils is attracting great interest from consumers and producers since it may be used as a criterion for guaranteeing quality and authenticity. Stable isotope techniques can provide useful information on the origin of food products. For these reasons the natural abundance isotopic ratios of Carbon, Oxygen and Nitrogen were measured using isotope ratio mass spectrometry (IRMS) for samples (cosmetics oil, seed) produced between July and August 2012 in different Moroccan cooperatives with certified PGI (protected geographical indication) label and organic certification, representing five provenances in the southwest part of Morocco. These provenances are distinct on a Geographical, hydrological and climatic level: Essaouira, Agadir Idaou Tanane, chtouka Ait Baha, Taroudant and Tiznit. IRMS was selected as a reliable technique to characterise the stable carbon and oxygen isotope ‘fingerprints' of Moroccan Protected Geographical Indication (PGI) Argan oils and nitrogen isotope analysis of the Agan nut. Moreover, it demonstrated relationships between environmental parameters and the isotopic composition of plants coming from geographically distinct areas. The results obtained in this study indicate that it is possible to differentiate Argan oil producing areas, which can be associated with regional (cooperatives), and promote and protect the quality and commercial value of this important Moroccan plant product.
publishDate 2020
dc.date.none.fl_str_mv 2020-03
2020-03-01T00:00:00Z
2022-03-02T01:30:36Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/46882
url http://hdl.handle.net/10451/46882
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1016/j.forc.2019.100198
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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