Cherry fibers isolated from harvest residues as valuable dietary fiber and functional food ingredients

Authors
Basanta, Maria Florencia; de Escalada Pla, Marina Francisca; Raffo Benegas, María Dolores; Stortz, Carlos Arturo; Rojas, Ana Maria Luisa
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Residues discarded at cherry fruit harvesting were extracted with ethanol from ‘Chelan’, ‘Brooks’ and ‘Sunburst’ varieties to obtain cherry fibers constituted by the cell wall polysaccharides, applicable as functional food ingredients, additives and/or dietary fibers. Powder properties were evaluated. The highest specific volume, directly related to sample porosity, corresponded to ‘Brooks’ fibers. These results matched the best hydration properties showed by ‘Brooks’. Chemical composition may indicate a hydrogel microstructure for cherry fibers. ‘Chelan’ and ‘Sunburst’ powders showed the highest total phenolics content, 40–63% of which were bound. The FRAP-antioxidant activity determined in water was lower than that expected from the total phenolics content determined after alkaline or acid hydrolysis. Cherry fibers stabilized oil-in-water (ϕ = 50%) emulsions and showed foaming capacity. Beyond some differences observed between varieties, cherry harvesting residues constitute valuable sources of biopolymers and antioxidant compounds potentially useful as functional food ingredients and dietary fiber.
Fil: Basanta, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: de Escalada Pla, Marina Francisca. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Raffo Benegas, María Dolores. Instituto Nacional de Tecnología Agropecuaria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stortz, Carlos Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; 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
FUNCTIONAL CHERRY FIBERS
PECTINS
PHENOLICS
ANTIOXIDANT CAPACITY
EMULSION PROPERTIES
Otras Ciencias Químicas
Ciencias Químicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/32193