Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products

Detalhes bibliográficos
Autor(a) principal: Lourenço, Ana Sofia Casanova
Data de Publicação: 2021
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/22907
Resumo: Doutoramento em Engenharia Alimentar / Instituto Superior de Agronomia. Universidade de Lisboa
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network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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spelling Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food productspineapple peelantioxidantsmicroencapsulationspray dryingactive biodegradable filmsDoutoramento em Engenharia Alimentar / Instituto Superior de Agronomia. Universidade de LisboaWorldwide, fruit sector discards tons of byproducts causing negative economic, environmental and social impacts. However, most of these byproducts, like pineapple peel, are composed of added value molecules with functional properties, such as antioxidant capacity. As such, this study was focused on the recovery of the bioactive compounds from pineapple peel using preferentially direct, environmentally friendly and low-cost techniques, for further application in food products preservation, aiming to replace synthetic antioxidants. Solid-liquid extraction processes were applied, and the one delivering an extract with higher total phenolics content and antioxidant capacity was a single extraction step with pineapple peel-solvent ratio of 1:1 (w/w) for 25 minutes at ambient temperature, using ethanol-water (80-20%) as solvent, followed by ethanol evaporation under vacuum. However, the storage of the obtained liquid extract before application compromises its antioxidant capacity due to degradation/oxidation reactions. Thus, its stabilization was explored by spray drying using different wall materials (maltodextrin, inulin, and arabic gum) and inlet air temperatures. The microencapsulation process at 150 °C using maltodextrin was the one showing higher maintenance of the antioxidant activity of compounds present in the extract before encapsulation during spray drying. In addition, the microparticles obtained maintained their antioxidant activity during storage at 6 °C for six months. These particles were used in the development of active biodegradable films that were applied in beef meat preservation. The films showed a good performance in retarding lipid oxidation, maintaining the color of red beef meat and in the inhibition of initial growth of aerobic mesophilic bacteria during storage. It is envisaged a high potential for the microparticles loaded with pineapple peel extract to be incorporated in food systems in order to enhance their stability and nutritional value, enabling simultaneously the valorization of pineapple byproducts within a circular economy conceptISA/ULAlves, Vitor DelgadoMartins, Margarida MoldãoRepositório da Universidade de LisboaLourenço, Ana Sofia Casanova20212025-01-05T00:00:00Z2021-01-01T00:00:00Zdoctoral thesisinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10400.5/22907TID:101506082engLourenço, A.S.C. - Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products. Lisboa: ISA, 2021, 212 p.info: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:RCAAP2024-11-20T19:13:26Zoai:repositorio.ul.pt:10400.5/22907Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-20T19:13:26Repositório 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 Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
title Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
spellingShingle Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
Lourenço, Ana Sofia Casanova
pineapple peel
antioxidants
microencapsulation
spray drying
active biodegradable films
title_short Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
title_full Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
title_fullStr Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
title_full_unstemmed Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
title_sort Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products
author Lourenço, Ana Sofia Casanova
author_facet Lourenço, Ana Sofia Casanova
author_role author
dc.contributor.none.fl_str_mv Alves, Vitor Delgado
Martins, Margarida Moldão
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Lourenço, Ana Sofia Casanova
dc.subject.por.fl_str_mv pineapple peel
antioxidants
microencapsulation
spray drying
active biodegradable films
topic pineapple peel
antioxidants
microencapsulation
spray drying
active biodegradable films
description Doutoramento em Engenharia Alimentar / Instituto Superior de Agronomia. Universidade de Lisboa
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01T00:00:00Z
2025-01-05T00:00:00Z
dc.type.driver.fl_str_mv doctoral thesis
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/22907
TID:101506082
url http://hdl.handle.net/10400.5/22907
identifier_str_mv TID:101506082
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Lourenço, A.S.C. - Natural antioxidants from pineapple (Ananas comosus L.Merr.) byproducts stabilized by spray drying for food products. Lisboa: ISA, 2021, 212 p.
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 ISA/UL
publisher.none.fl_str_mv ISA/UL
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
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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