Effect of alginate coating on the physico-chemical and microbial quality of pansies (Viola × wittrockiana) during storage
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10198/18752 |
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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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 |
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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1799135350887546880 |