title: Impact of lipid content and composition on lipid oxidation and protein carbonylation in experimental fermented sausages.
abstract: This study aims to investigate the effect of lipid content (∼4%, ∼10% and ∼15%) and composition (different lipid sources; animal fat and sunflower oil) on the oxidative stability of proteins and lipids in experimental fermented sausages. Increasing the lipid content of sausages enhanced the susceptibility of lipids to oxidation whereas the effect on the formation of specific carbonyls from protein oxidation was not so evident. Sausages manufactured with different lipid sources affected the susceptibility of lipids and proteins to oxidation as a likely result of the modifications in the fatty acid profile, as well as to the presence of antioxidant compounds. While the fatty acid profile had a major effect on the occurrence and extent of lipid oxidation, the presence of compounds with potential antioxidant activity may be more influential on the extent of protein carbonylation.
authors.affiliation: Department of Animal Production and Food Science, Faculty of Veterinary Sciences, University of Extremadura, Cáceres, Spain.
authors.forename: Verónica
authors.initials: V
authors.lastname: Fuentes
authors.forename: Mario
authors.initials: M
authors.lastname: Estévez
authors.forename: Jesús
authors.initials: J
authors.lastname: Ventanas
authors.forename: Sonia
authors.initials: S
authors.lastname: Ventanas
mesh_terms: D000818:Animals; D005285:Fermentation; D008055:Lipids / Q000737:chemistry*; D008461:Meat Products / Q000032:analysis*; D010084:Oxidation-Reduction; D050050:Protein Carbonylation; D011506:Proteins / Q000737:chemistry*; D013552:Swine
chemical_list: D008055:Lipids; D011506:Proteins
keywords: AAS; Fermented sausages; GGS; Lipid content; Lipid oxidation; Sunflower oil