title: Active food packaging based on molecularly imprinted polymers: study of the release kinetics of ferulic acid.
abstract: A novel active packaging based on molecularly imprinted polymer (MIP) was developed for the controlled release of ferulic acid. The release kinetics of ferulic acid from the active system to food simulants (10, 20, and 50% ethanol (v/v), 3% acetic acid (w/v), and vegetable oil), substitutes (95% ethanol (v/v) and isooctane), and real food samples at different temperatures were studied. The key parameters of the diffusion process were calculated by using a mathematical modeling based on Fick's second law. The ferulic acid release was affected by the temperature as well as the percentage of ethanol of the simulant. The fastest release occurred in 95% ethanol (v/v) at 20 °C. The diffusion coefficients (D) obtained ranged between 1.8 × 10(-11) and 4.2 × 10(-9) cm(2)/s. A very good correlation between experimental and estimated data was obtained, and consequently the model could be used to predict the release of ferulic acid into food simulants and real food samples.
authors.affiliation: Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Pharmacy, University of Santiago de Compostela , Campus Vida s/n, 15782 Santiago de Compostela (La Coruña), Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Otero-Pazos
authors.forename: Ana
authors.initials: A
authors.lastname: Rodríguez-Bernaldo de Quirós
authors.forename: Raquel
authors.initials: R
authors.lastname: Sendón
authors.forename: Elena
authors.initials: E
authors.lastname: Benito-Peña
authors.forename: Victoria
authors.initials: V
authors.lastname: González-Vallejo
authors.forename: M Cruz
authors.initials: MC
authors.lastname: Moreno-Bondi
authors.forename: Immaculada
authors.initials: I
authors.lastname: Angulo
authors.forename: Perfecto
authors.initials: P
authors.lastname: Paseiro-Losada
mesh_terms: D003373:Coumaric Acids / Q000737:chemistry*; D004058:Diffusion; D018857:Food Packaging / Q000295:instrumentation*; D007700:Kinetics; D054802:Molecular Imprinting; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D013696:Temperature
chemical_list: D003373:Coumaric Acids; D011108:Polymers; C004999:ferulic acid
keywords: ferulic acid; kinetic release; molecularly imprinted polymers; partition and diffusion coefficients