Fucopol as encapsulating matrix of bioactive compounds

Detalhes bibliográficos
Autor(a) principal: Lourenço, Ana Sofia Casanova
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/8514
Resumo: Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia
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spelling Fucopol as encapsulating matrix of bioactive compoundsFucoPolspray dryingmicroencapsulationgallic acidoregano essential oilMestrado em Engenharia Alimentar - Instituto Superior de AgronomiaFucoPol is an exopolysaccharide produced by the Enterobacter A47, using glycerol byproduct from the biodiesel industry as carbon source. In this work, the potential of this biopolymer to produce microparticles and to encapsulate bioactive compounds by spray drying was studied. The particles were characterized in terms of morphology (Scanning Electron Microscopy), crystallinity (X-Ray Diffraction), chemical characteristics (Fourier Transform Infrared), and thermal properties (Thermogravimetric Analysis and Differential Scanning Calorimetry). FucoPol was able to form spherical microcapsules (size from 0.5 to 26.7 μm) with a thin wall (thickness from 222 to 1094 nm) and a smooth surface. A population of small particles with dented surfaces was obtained. The microcapsules presented an amorphous structure. Gallic acid (GA) and oregano essential oil (OEO) were encapsulated using FucoPol as wall material. The bioactive loading was 12.2 wt.% and 3.1 wt.% for OEO and GA, respectively. Additionally, the encapsulation efficiency was 20% for OEO and 5.3% for GA. The release profile in simulated gastric (SGF) and intestinal (SIF) fluids revealed a total release, except for the GA in SGF, where 68% retention was observed. The compounds antioxidant capacity was not affected by the encapsulation process. From the results obtained, FucoPol reveals a good potential as microcapsules forming and encapsulating materialISA/ULAlves, Vitor Manuel DelgadoBeirão da Costa, Maria LuísaRepositório da Universidade de LisboaLourenço, Ana Sofia Casanova2015-05-04T15:36:40Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/8514TID:201845458engLourenço, A.S.C. - Fucopol as encapsulating matrix of bioactive compounds. Lisboa: ISA, 2015, 98 p.info: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:RCAAP2023-03-06T14:39:06Zoai:www.repository.utl.pt:10400.5/8514Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:55:30.352653Repositório 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 Fucopol as encapsulating matrix of bioactive compounds
title Fucopol as encapsulating matrix of bioactive compounds
spellingShingle Fucopol as encapsulating matrix of bioactive compounds
Lourenço, Ana Sofia Casanova
FucoPol
spray drying
microencapsulation
gallic acid
oregano essential oil
title_short Fucopol as encapsulating matrix of bioactive compounds
title_full Fucopol as encapsulating matrix of bioactive compounds
title_fullStr Fucopol as encapsulating matrix of bioactive compounds
title_full_unstemmed Fucopol as encapsulating matrix of bioactive compounds
title_sort Fucopol as encapsulating matrix of bioactive compounds
author Lourenço, Ana Sofia Casanova
author_facet Lourenço, Ana Sofia Casanova
author_role author
dc.contributor.none.fl_str_mv Alves, Vitor Manuel Delgado
Beirão da Costa, Maria Luísa
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Lourenço, Ana Sofia Casanova
dc.subject.por.fl_str_mv FucoPol
spray drying
microencapsulation
gallic acid
oregano essential oil
topic FucoPol
spray drying
microencapsulation
gallic acid
oregano essential oil
description Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia
publishDate 2015
dc.date.none.fl_str_mv 2015-05-04T15:36:40Z
2015
2015-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/8514
TID:201845458
url http://hdl.handle.net/10400.5/8514
identifier_str_mv TID:201845458
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Lourenço, A.S.C. - Fucopol as encapsulating matrix of bioactive compounds. Lisboa: ISA, 2015, 98 p.
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 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
_version_ 1799131033415712768

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