Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents

Detalhes bibliográficos
Autor(a) principal: Coelho, Maria Teresa
Data de Publicação: 2020
Outros Autores: Valério, Fátima Alexandra, Pedro, Soraia Inês, Anjos, Ofélia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/20315
Resumo: Original Article
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spelling Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contentsPrunus persicaMIR spectroscopyfructoseglucosesucrosefruit juiceOriginal ArticleFruit juice does not have the same nutritional value as fresh fruit with regards to the vitamin, mineral and dietary fibre contents and the antioxidant properties. However, it can be part of a healthy diet if it is produced with the minimal addition of sugar. This study aimed to evaluate the performance of the FTIR-ATR technique to discriminate the authenticity (concerning the addition of other pulps) and amount of sugar in peach nectars. This technique is usually used in food analysis because it does not require sample preparation, is quick and allows for the determination of several parameters with a single sample aliquot. The nutritional information provided on the labels of 69 samples of 23 different brands of commercial peach juice, was analysed. The differences in the nutritional composition and in the ingredients were determined according to an analysis of the labels. The largest differences observed between the samples were the sugar contents, the percentages of pulp and the addition of other pulps. All samples were analysed by FTIR-ATR equipped with a controlled temperature flow-through cell. The spectral multivariate analysis suggested it was possible to identify differences in the amount of sugar present and identify the presence of fruit pulps other than peachITALRepositório da Universidade de LisboaCoelho, Maria TeresaValério, Fátima AlexandraPedro, Soraia InêsAnjos, Ofélia2020-09-16T10:08:37Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/20315engCoelho, M. T., Valério, F. A., Pedro, S. I., & Anjos, O. M. S. (2020). Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents. Brazilian Journal of Food Technology, 23, e2018194https://doi.org/10.1590/1981-6723.19418info: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:RCAAP2023-03-06T14:49:45Zoai:www.repository.utl.pt:10400.5/20315Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:05:05.218726Repositório 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 Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
title Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
spellingShingle Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
Coelho, Maria Teresa
Prunus persica
MIR spectroscopy
fructose
glucose
sucrose
fruit juice
title_short Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
title_full Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
title_fullStr Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
title_full_unstemmed Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
title_sort Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents
author Coelho, Maria Teresa
author_facet Coelho, Maria Teresa
Valério, Fátima Alexandra
Pedro, Soraia Inês
Anjos, Ofélia
author_role author
author2 Valério, Fátima Alexandra
Pedro, Soraia Inês
Anjos, Ofélia
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Coelho, Maria Teresa
Valério, Fátima Alexandra
Pedro, Soraia Inês
Anjos, Ofélia
dc.subject.por.fl_str_mv Prunus persica
MIR spectroscopy
fructose
glucose
sucrose
fruit juice
topic Prunus persica
MIR spectroscopy
fructose
glucose
sucrose
fruit juice
description Original Article
publishDate 2020
dc.date.none.fl_str_mv 2020-09-16T10:08:37Z
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/10400.5/20315
url http://hdl.handle.net/10400.5/20315
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Coelho, M. T., Valério, F. A., Pedro, S. I., & Anjos, O. M. S. (2020). Application of FTIR-ATR to discriminate peach nectars with higher and lower sugar contents. Brazilian Journal of Food Technology, 23, e2018194
https://doi.org/10.1590/1981-6723.19418
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.publisher.none.fl_str_mv ITAL
publisher.none.fl_str_mv ITAL
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
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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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