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Adsorption capacity of phenolic compounds onto cellulose and xylan Ciênc. Tecnol. Aliment.
Costa,Telma dos Santos; Rogez,Hervé; Pena,Rosinelson da Silva.
The 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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cellulose; Xylan; Adsorption; Phenolic compounds; Isotherm; In vitro tests.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612015000200314
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