Adsorption capacity of phenolic compounds onto cellulose and xylan

dc.citation.issue2pt_BR
dc.citation.spage314pt_BR
dc.citation.volume35pt_BR
dc.creatorCOSTA, Telma dos Santos
dc.creatorROGEZ, Hervé Louis Ghislain
dc.creatorPENA, Rosinelson da Silva
dc.date.accessioned2017-07-03T14:56:26Z
dc.date.available2017-07-03T14:56:26Z
dc.date.issued2015-06
dc.description.abstractThe interaction between three phenolic compounds (catechin, caffeic acid and ferulic acid) onto two dietary fibres (cellulose and xylan) has been evaluated to inquire possible interferences on the biodisponibility of phenolic compounds. The adsorption kinetics were performed using solutions containing 100 mg/L of phenolic compounds during a contact time ranging between 10 and 120 minutes at pH 2.0, 4.5, and 7.0. After the kinetics, isotherms were obtained using phenolic compounds concentration ranging between 10 and 80 mg/L during 60 minutes, at pH 2.0 and 7.0 and temperature of 36 °C. Results indicate that adsorbed quantities mainly changed in function of pH, however the maximum adsorption was only of 0.978 mg of caffeic acid/g of xylan at pH 2 and after 60 min. Redlich-Peterson model were able to predict the adsorption isotherms of all phenolic compounds onto cellulose, except for caffeic acid at pH 7.0. The low adsorption capacities observed suggest that both dietary fibres are unable to compromise the biodisponibility of phenolic compounds, especially in the small intestine, where they are partially absorbed.pt_BR
dc.identifier.citationCOSTA, Telma dos Santos ; ROGEZ, Herve Louis Ghislain ; PENA, Rosinelson da Silva. Adsorption capacity of phenolic compounds onto cellulose and xylan. Food Science and Technology (Campinas), Campinas, v. 35, n. 2, p. 314-320, abr./jun. 2015. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000200314&lng=pt&nrm=iso>. Acesso em: 03 jul. 2017. <http://dx.doi.org/10.1590/1678-457X.6568>.pt_BR
dc.identifier.issn1678-457Xpt_BR
dc.identifier.urihttps://repositorio.ufpa.br/handle/2011/8773
dc.languageporpt_BR
dc.publisherUniversidade Federal do Parápt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.initialsUFPApt_BR
dc.relation.ispartofFood Science and Technology (Campinas)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectCompostos fenólicospt_BR
dc.subjectCinéticapt_BR
dc.subjectCelulosept_BR
dc.subjectIsotermapt_BR
dc.titleAdsorption capacity of phenolic compounds onto cellulose and xylanpt_BR
dc.typeArtigo de Periódicopt_BR
dcterms.citation.epage320pt_BR

Arquivo(s)

Pacote Original

Agora exibindo 1 - 1 de 1
Carregando...
Imagem de Miniatura
Nome:
Artigo_AdsorptionCapacityPhenolic.pdf
Tamanho:
888.66 KB
Formato:
Adobe Portable Document Format

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.82 KB
Formato:
Item-specific license agreed upon to submission
Descrição: