Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal

Detalhes bibliográficos
Autor(a) principal: Rego, Andreia
Data de Publicação: 2018
Outros Autores: Mota, Carla, Gueifão, Sandra, Ventura, Marta, Delgado, Inês, Lopes, Joel, Matos, Ana, Castanheira, Isabel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.18/5976
Resumo: This study evaluated amino acids, antioxidant capacity, and arsenic species present in Indica and Japonica rice cultivars (Oryza sativa L.) grown in similar regions, as well as brown rice. Essential amino acids in brown rice exhibited a greater abundance when compared to white rice. Lysine was the only essential amino acid with higher concentration in white rice than in brown rice. Results showed antioxidant activity of 0.46 IC50 (mg mL 1) and TPC 0.11 mg eq. GA/g of sample. Total arsenic content in rice samples was about 200 mg/kg. HPLC-ICP-MS determinations revealed iAs as the predominant species in bran samples. Through Spearman’s correlation, negative correlations between six amino acids and total arsenic content in japonica white rice were observed. Sulphur amino acid cysteine presented the highest negative correlation (q = 0.758, p-value = 0.011). Based on our results, a regular benefit-risk assessment for rice products to enhance the consumption choice is recommended.
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spelling Amino acid contents and toxically relevant arsenic of rice varieties consumed in PortugalRiceArsenic SpeciationAmino AcidsAntioxidant CapacitySegurança AlimentarComposição dos AlimentosThis study evaluated amino acids, antioxidant capacity, and arsenic species present in Indica and Japonica rice cultivars (Oryza sativa L.) grown in similar regions, as well as brown rice. Essential amino acids in brown rice exhibited a greater abundance when compared to white rice. Lysine was the only essential amino acid with higher concentration in white rice than in brown rice. Results showed antioxidant activity of 0.46 IC50 (mg mL 1) and TPC 0.11 mg eq. GA/g of sample. Total arsenic content in rice samples was about 200 mg/kg. HPLC-ICP-MS determinations revealed iAs as the predominant species in bran samples. Through Spearman’s correlation, negative correlations between six amino acids and total arsenic content in japonica white rice were observed. Sulphur amino acid cysteine presented the highest negative correlation (q = 0.758, p-value = 0.011). Based on our results, a regular benefit-risk assessment for rice products to enhance the consumption choice is recommended.Highlights: Brown rice shows a higher content of AA than white rice; iAs species are predominant in bran samples; Correlations were found between AA and As.The scientific work was funded by the Portuguese Fundação para a Ciência e a Tecnologia (FCT) under the scope of the strategic project UID/EMS/00667/2013. The analytical work has been financially supported by the SUDOE Interreg IV B Programme through the ORQUE SUDOE project (Ref. SOE3/P2/F591/5).Elsevier/ International Measurement Confederation (IMEKO)Repositório Científico do Instituto Nacional de SaúdeRego, AndreiaMota, CarlaGueifão, SandraVentura, MartaDelgado, InêsLopes, JoelMatos, AnaCastanheira, Isabel2019-02-27T15:59:22Z2018-012018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.18/5976engMeasurement. 2018 Jan;113:189-195. Doi:10.1016/j.measurement.2017.03.0250263-224110.1016/j.measurement.2017.03.025info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-20T15:41:06Zoai:repositorio.insa.pt:10400.18/5976Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:40:33.122039Repositório 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 Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
title Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
spellingShingle Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
Rego, Andreia
Rice
Arsenic Speciation
Amino Acids
Antioxidant Capacity
Segurança Alimentar
Composição dos Alimentos
title_short Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
title_full Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
title_fullStr Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
title_full_unstemmed Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
title_sort Amino acid contents and toxically relevant arsenic of rice varieties consumed in Portugal
author Rego, Andreia
author_facet Rego, Andreia
Mota, Carla
Gueifão, Sandra
Ventura, Marta
Delgado, Inês
Lopes, Joel
Matos, Ana
Castanheira, Isabel
author_role author
author2 Mota, Carla
Gueifão, Sandra
Ventura, Marta
Delgado, Inês
Lopes, Joel
Matos, Ana
Castanheira, Isabel
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Nacional de Saúde
dc.contributor.author.fl_str_mv Rego, Andreia
Mota, Carla
Gueifão, Sandra
Ventura, Marta
Delgado, Inês
Lopes, Joel
Matos, Ana
Castanheira, Isabel
dc.subject.por.fl_str_mv Rice
Arsenic Speciation
Amino Acids
Antioxidant Capacity
Segurança Alimentar
Composição dos Alimentos
topic Rice
Arsenic Speciation
Amino Acids
Antioxidant Capacity
Segurança Alimentar
Composição dos Alimentos
description This study evaluated amino acids, antioxidant capacity, and arsenic species present in Indica and Japonica rice cultivars (Oryza sativa L.) grown in similar regions, as well as brown rice. Essential amino acids in brown rice exhibited a greater abundance when compared to white rice. Lysine was the only essential amino acid with higher concentration in white rice than in brown rice. Results showed antioxidant activity of 0.46 IC50 (mg mL 1) and TPC 0.11 mg eq. GA/g of sample. Total arsenic content in rice samples was about 200 mg/kg. HPLC-ICP-MS determinations revealed iAs as the predominant species in bran samples. Through Spearman’s correlation, negative correlations between six amino acids and total arsenic content in japonica white rice were observed. Sulphur amino acid cysteine presented the highest negative correlation (q = 0.758, p-value = 0.011). Based on our results, a regular benefit-risk assessment for rice products to enhance the consumption choice is recommended.
publishDate 2018
dc.date.none.fl_str_mv 2018-01
2018-01-01T00:00:00Z
2019-02-27T15:59:22Z
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/10400.18/5976
url http://hdl.handle.net/10400.18/5976
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Measurement. 2018 Jan;113:189-195. Doi:10.1016/j.measurement.2017.03.025
0263-2241
10.1016/j.measurement.2017.03.025
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier/ International Measurement Confederation (IMEKO)
publisher.none.fl_str_mv Elsevier/ International Measurement Confederation (IMEKO)
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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instacron_str RCAAP
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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
repository.mail.fl_str_mv
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