title: Filled hydrogel particles as a delivery system for n-3 long chain PUFA in low-fat frankfurters: Consequences for product characteristics with special reference to lipid oxidation.
abstract: This article examines the suitability of filled hydrogel particles for use as a delivery system for n-3 long chain PUFAs in low-fat frankfurters. Their effects on product characteristics over chilled storage were compared with those of frankfurters containing all-pork fat (control) or a comparable amount of fish oil (n-3 LCPUFA) incorporated in liquid form or in an oil-in-water emulsion. In modified samples n-3 fatty acids ranged between 801.34 to 996.37 mg/100g as opposed to 66 mg/100g in all-pork fat product. As compared with the control, hardness and chewiness values were similar (P>0.05) in filled hydrogel frankfurter. The presence of fish oil favoured lipid oxidation to varying degrees depending on delivery system, in descending order: direct oil addition>oil-in-water emulsion>hydrogels. Sensory evaluation demonstrated the advantages, from a sensory point of view, of hydrogel filled particles as n-3 delivery systems in frankfurters.
authors.affiliation: Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), C/José Antonio Novais, 10, 28040 Madrid, Spain.
authors.forename: Lorena
authors.initials: L
authors.lastname: Salcedo-Sandoval
authors.affiliation: Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), C/José Antonio Novais, 10, 28040 Madrid, Spain.
authors.forename: Susana
authors.initials: S
authors.lastname: Cofrades
authors.affiliation: Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), C/José Antonio Novais, 10, 28040 Madrid, Spain.
authors.forename: Claudia
authors.initials: C
authors.lastname: Ruiz-Capillas
authors.affiliation: Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), C/José Antonio Novais, 10, 28040 Madrid, Spain. Electronic address: fjimenez@ictan.csic.es.
authors.forename: Francisco
authors.initials: F
authors.lastname: Jiménez-Colmenero
mesh_terms: D000818:Animals; D004281:Docosahexaenoic Acids / Q000737:chemistry; D015118:Eicosapentaenoic Acid / Q000737:chemistry; D015525:Fatty Acids, Omega-3 / Q000737:chemistry*; D005504:Food Analysis; D020100:Hydrogels / Q000737:chemistry*; D015227:Lipid Peroxidation; D008461:Meat Products / Q000032:analysis*
chemical_list: D015525:Fatty Acids, Omega-3; D020100:Hydrogels; D004281:Docosahexaenoic Acids; D015118:Eicosapentaenoic Acid
keywords: Chilled storage; Filled hydrogel particles; Frankfurters; Lipid oxidation; O/W emulsion; n−3 LCPUFA delivery systems