title: Effect of dietary supplementation on lipid photooxidation in beef meat, during storage under commercial retail conditions.
abstract: The effects of feeding composition on the photosensitized oxidation of lipids from beef meat, were evaluated during storage under commercial retail conditions. Feeding was enriched with linseed oil (LO), Dl-α tocopheryl acetate (vE) and conjugated linoleic acid (CLA) at different doses and provided for diverse periods, resulting in 7 diet groups (A-G). After slaughtering and 2 weeks of holding period, meat slices were packed in vessels with transparent shrink film and exposed to white fluorescent light for 8h at 8 °C. Total cholesterol oxidation products (COPs) level varied from 4.0 to 13.0 μg/g of lipids, which corresponded to 0.1-0.6% oxidized cholesterol. The lowest peroxide value (PV) was found in the diet added with vE and LO for 90 days. Light exposure only had a significant impact on thiobarbituric acid reactive substances (TBARs). In general, Dl-α tocopheryl acetate supplemented for 90 days improved the oxidative stability of beef meat stored under commercial retail conditions.
authors: Interdepartmental Centre for Agri-Food Industrial Research, Alma Mater Studiorum-Università di Bologna, Cesena, Italy.
authors: Vladimiro
authors: V
authors: Cardenia
authors: Department of Agricultural and Food Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy.
authors: Milena
authors: M
authors: Massimini
authors: Department of Agricultural and Food Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy.
authors: Alba
authors: A
authors: Poerio
authors: Department of Agricultural and Food Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy.
authors: Maria Chiara
authors: MC
authors: Venturini
authors: Interdepartmental Centre for Agri-Food Industrial Research, Alma Mater Studiorum-Università di Bologna, Cesena, Italy; Department of Agricultural and Food Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy. Electronic address: maria.rodriguez@unibo.it.
authors: Maria Teresa
authors: MT
authors: Rodriguez-Estrada
authors: Centro Ricerche Produzioni Animali C.R.P.A. S.p.A., Reggio Emilia, Italy.
authors: Paola
authors: P
authors: Vecchia
authors: Interdepartmental Centre for Agri-Food Industrial Research, Alma Mater Studiorum-Università di Bologna, Cesena, Italy; Department of Agricultural and Food Sciences, Alma Mater Studiorum-Università di Bologna, Bologna, Italy.
authors: Giovanni
authors: G
authors: Lercker
mesh_terms: D000818:Animals; D017849:Animals, Inbred Strains; D002417:Cattle; D002784:Cholesterol / Q000031:analogs & derivatives / Q000032:analysis / Q000737:chemistry; D004032:Diet / Q000662:veterinary*; D004041:Dietary Fats / Q000032:analysis* / Q000528:radiation effects; D018857:Food Packaging; D005519:Food Preservation; D063427:Food Quality; D061353:Food Storage; D007558:Italy; D008027:Light / Q000009:adverse effects; D044243:Linoleic Acids, Conjugated / Q000008:administration & dosage; D008043:Linseed Oil / Q000008:administration & dosage; D008054:Lipid Peroxides / Q000032:analysis / Q000037:antagonists & inhibitors / Q000737:chemistry; D008297:Male; D008460:Meat / Q000032:analysis* / Q000191:economics / Q000528:radiation effects; D010084:Oxidation-Reduction; D055668:Photochemical Processes; D025341:Principal Component Analysis; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis / Q000737:chemistry; D024502:alpha-Tocopherol / Q000008:administration & dosage*
chemical_list: D004041:Dietary Fats; D044243:Linoleic Acids, Conjugated; D008054:Lipid Peroxides; D017392:Thiobarbituric Acid Reactive Substances; D008043:Linseed Oil; D002784:Cholesterol; D024502:alpha-Tocopherol
keywords: Beef meat; CLA; Cholesterol oxidation; Diet; Dl-α tocopheryl acetate; Lipid oxidation; Storage