Carrot fiber (CF) composite films for antioxidant preservation: Particle size effect

• Authors: Idrovo Encalada, Alondra Mariela; Basanta, Maria Florencia; Fissore, Eliana Noemi; De'nobili, Maria Dolores; Rojas, Ana Maria Luisa
• Publication Year: 2016
• Language: English
• Format: article
• Status: Published version
• Description: The effect of particle size (53, 105 and 210 μm) of carrot fiber (CF) on their hydration properties and antioxidant capacity as well as on the performance of the CF-composite films developed with commercial low methoxyl pectin (LMP) was studied. It was determined that CF contained carotenoids and phenolics co-extracted with polysaccharides (80%), rich in pectins (15%). CF showed antioxidant activity and produced homogeneous calcium-LMP-based composites. The 53-μm-CF showed the lowest hydration capability and produced the least elastic and deformable composite film due probably to CF bridged by calcium-crosslinked LMP chains. Antioxidant activity associated to the loaded CF was found in composites. When l-(+)-ascorbic acid (AA) was also loaded, its hydrolytic stability increased with the decrease in CF-particle size, showing the lowest stability in the 0%-CF- and 210 μm-CF-LMP films. Below ≈250 μm, the particle size determined the hydration properties of pectin-containing CF, affecting the microstructure and water mobility in composites.; Fil: Idrovo Encalada, Alondra Mariela. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaria de Educación Superior, Ciencia, Tecnología e Innovación; Ecuador; Fil: Basanta, Maria Florencia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina; Fil: Fissore, Eliana Noemi. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina; Fil: De'nobili, Maria Dolores. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina; Fil: Rojas, Ana Maria Luisa. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
• Subject: ANTIOXIDANT PRESERVATION; AVERAGE PARTICLE SIZE; CAROTENOIDS AND PHENOLICS; CARROT FIBER; COMPOSITE FILMS; PECTINS; Alimentos y Bebidas; Otras Ingenierías y Tecnologías; INGENIERÍAS Y TECNOLOGÍAS
• Access level: Restricted access
• License: https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
• Institution: Consejo Nacional de Investigaciones Científicas y Técnicas
• OAI Identifier: oai:ri.conicet.gov.ar:11336/59532