title: Oxidative stability of pork meat lipids as related to high-oleic sunflower oil and vitamin E diet supplementation and storage conditions.
abstract: The aim of this research work was to evaluate the oxidative stability of pork meat lipids as related to dietary supplementation with high-oleic sunflower oil (HOSO) and/or α-tocopheryl acetate (VE), as well as the influence of storage conditions. Four different diets (control; HOSO; VE; HOSO+VE), were fed to swines until slaughtering. Meat slices were packed in vessels with transparent shrink film and exposed to white fluorescent light for 3 days at 8 °C. HOSO supplementation increased oleic acid content of pork meat. The highest levels of peroxide value (PV) and cholesterol oxidation products (COPs) were detected in the control group, whereas HOSO-enriched diets displayed the highest thiobarbituric reactive substance (TBARs) content. After storage under light exposure, pork meat slices exhibited a decrease of PV, which resulted in an increasing trend of TBARs and COPs. Feeding enrichment with both HOSO and vitamin E can be, therefore, used as an appropriate supplementation strategy to produce pork meat with a suitable oxidative stability.
authors.affiliation: Dipartimento di Scienze degli Alimenti, Alma Mater Studiorum-Università di Bologna, Viale G Fanin 40, 40127 Bologna, Italy.
authors.forename: Vladimiro
authors.initials: V
authors.lastname: Cardenia
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Rodriguez-Estrada
authors.forename: Fabio
authors.initials: F
authors.lastname: Cumella
authors.forename: Luca
authors.initials: L
authors.lastname: Sardi
authors.forename: Giacinto
authors.initials: G
authors.lastname: Della Casa
authors.forename: Giovanni
authors.initials: G
authors.lastname: Lercker
mesh_terms: D000818:Animals; D002784:Cholesterol / Q000378:metabolism; D004041:Dietary Fats / Q000008:administration & dosage / Q000378:metabolism*; D019587:Dietary Supplements; D005511:Food Handling / Q000379:methods*; D006368:Helianthus / Q000737:chemistry; D008027:Light; D015227:Lipid Peroxidation / Q000187:drug effects*; D008460:Meat / Q000032:analysis*; D019301:Oleic Acid / Q000032:analysis / Q000494:pharmacology*; D010938:Plant Oils / Q000494:pharmacology*; D000074242:Sunflower Oil; D013552:Swine / Q000378:metabolism; D013696:Temperature; D017392:Thiobarbituric Acid Reactive Substances / Q000378:metabolism; D014810:Vitamin E / Q000494:pharmacology*
chemical_list: D004041:Dietary Fats; D010938:Plant Oils; D000074242:Sunflower Oil; D017392:Thiobarbituric Acid Reactive Substances; D014810:Vitamin E; D019301:Oleic Acid; D002784:Cholesterol