Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage

Detalhes bibliográficos
Autor(a) principal: Fernandes, Luana
Data de Publicação: 2018
Outros Autores: Casal, Susana, Pereira, J.A., Pereira, Ermelinda, Saraiva, Jorge A., Ramalhosa, Elsa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/18752
Resumo: Edible flowers, such as pansies, are becoming more popular, but they are highly perishable. So, postharvest technologies are needed, being edible coatings a good alternative. Thus, the aim of this study was to evaluate the effect of alginate coating on physico-chemical and microbiological quality of pansies during cold storage (4 ºC for 0, 7, 14, 21 days). Coated pansies maintained good appearance until 14 days of storage, 7 days more than uncoated ones. Flavonoids, hydrolysable tannins and monomeric anthocyanins, as well antioxidant activity, were higher in coated pansies when compared to uncoated ones, on all assayed storage times. Furthermore, after 14 days of storage, uncoated pansies presented microorganism counts higher than coated, namely yeasts and moulds, suggesting an effective barrier protection of the alginate coating treatment. In summary, alginate coating has potential for extending shelf-life and improving physico-chemical and microbiological quality of pansies.
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spelling Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storageAlginate coatingAntioxidant activityBioactive compoundsMicrobial loadViola × wittrockianaEdible flowers, such as pansies, are becoming more popular, but they are highly perishable. So, postharvest technologies are needed, being edible coatings a good alternative. Thus, the aim of this study was to evaluate the effect of alginate coating on physico-chemical and microbiological quality of pansies during cold storage (4 ºC for 0, 7, 14, 21 days). Coated pansies maintained good appearance until 14 days of storage, 7 days more than uncoated ones. Flavonoids, hydrolysable tannins and monomeric anthocyanins, as well antioxidant activity, were higher in coated pansies when compared to uncoated ones, on all assayed storage times. Furthermore, after 14 days of storage, uncoated pansies presented microorganism counts higher than coated, namely yeasts and moulds, suggesting an effective barrier protection of the alginate coating treatment. In summary, alginate coating has potential for extending shelf-life and improving physico-chemical and microbiological quality of pansies.The authors acknowledge the Portuguese Foundation for Science and Technology (FCT, Portugal) for the financial support provided by the research Grant SFRH/BD/95853/ 2013 and FCT/MEC for the financial support to QOPNA research Unit (FCT UID/QUI/00062/2013), through national funds and when applicable co-financed by the FEDER, within the PT2020 Partnership Agreement and REQUIMTE through the Project PEst/UID/QUI/ 50006/2013. The authors are also grateful to FCT (Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UID/AGR/00690/2013).Biblioteca Digital do IPBFernandes, LuanaCasal, SusanaPereira, J.A.Pereira, ErmelindaSaraiva, Jorge A.Ramalhosa, Elsa2018-01-19T10:00:00Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/18752engFernandes, Luana; Casal, Susana; Pereira, J.A.; Pereira, Ermelinda; Saraiva, Jorge A.; Ramalhosa, Elsa (2018). Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage. Food Science and Biotechnology. ISSN 1226-7708. 27, p. 987-9961226-770810.1007/s10068-018-0326-0info: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:RCAAP2023-11-21T10:42:56Zoai:bibliotecadigital.ipb.pt:10198/18752Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:09:04.991022Repositório 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 Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
title Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
spellingShingle Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
Fernandes, Luana
Alginate coating
Antioxidant activity
Bioactive compounds
Microbial load
Viola × wittrockiana
title_short Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
title_full Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
title_fullStr Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
title_full_unstemmed Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
title_sort Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
author Fernandes, Luana
author_facet Fernandes, Luana
Casal, Susana
Pereira, J.A.
Pereira, Ermelinda
Saraiva, Jorge A.
Ramalhosa, Elsa
author_role author
author2 Casal, Susana
Pereira, J.A.
Pereira, Ermelinda
Saraiva, Jorge A.
Ramalhosa, Elsa
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Fernandes, Luana
Casal, Susana
Pereira, J.A.
Pereira, Ermelinda
Saraiva, Jorge A.
Ramalhosa, Elsa
dc.subject.por.fl_str_mv Alginate coating
Antioxidant activity
Bioactive compounds
Microbial load
Viola × wittrockiana
topic Alginate coating
Antioxidant activity
Bioactive compounds
Microbial load
Viola × wittrockiana
description Edible flowers, such as pansies, are becoming more popular, but they are highly perishable. So, postharvest technologies are needed, being edible coatings a good alternative. Thus, the aim of this study was to evaluate the effect of alginate coating on physico-chemical and microbiological quality of pansies during cold storage (4 ºC for 0, 7, 14, 21 days). Coated pansies maintained good appearance until 14 days of storage, 7 days more than uncoated ones. Flavonoids, hydrolysable tannins and monomeric anthocyanins, as well antioxidant activity, were higher in coated pansies when compared to uncoated ones, on all assayed storage times. Furthermore, after 14 days of storage, uncoated pansies presented microorganism counts higher than coated, namely yeasts and moulds, suggesting an effective barrier protection of the alginate coating treatment. In summary, alginate coating has potential for extending shelf-life and improving physico-chemical and microbiological quality of pansies.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-19T10:00:00Z
2018
2018-01-01T00:00:00Z
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/10198/18752
url http://hdl.handle.net/10198/18752
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Fernandes, Luana; Casal, Susana; Pereira, J.A.; Pereira, Ermelinda; Saraiva, Jorge A.; Ramalhosa, Elsa (2018). Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage. Food Science and Biotechnology. ISSN 1226-7708. 27, p. 987-996
1226-7708
10.1007/s10068-018-0326-0
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
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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
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