title: Effect of dietary carnosic acid on the fatty acid profile and flavour stability of meat from fattening lambs.
abstract: Thirty-two lambs were fed with barley straw supplemented by a concentrate alone, or a concentrate enriched with either vitamin E (VITE006: 0.6 g kg(-1) feed concentrate) or carnosic acid (CARN006: 0.6 g kg(-1) feed concentrate; or CARN012: 1.2 g kg(-1) feed concentrate). In order to elucidate the influence of the dietary supplementation of carnosic compared with a reference diet antioxidant (vitamin E), the animals were slaughtered and the longissimus thoracis were lyophilised to determine the FAs profile and the phenolic compounds. In addition, longissimus lumborum slices were stored in a modified atmosphere package for 3 days and then grilled to determine volatile compounds. Dietary carnosic acid did not modify the FAs profile, but had a clear effect on the production of volatile compounds, in a dose-dependent manner. These results have implications for the food industry, since dietary carnosic acid seems to extend the shelf life of lamb meat.
authors.affiliation: Instituto de Ganadería de Montaña, CSIC-Universidad de León, Finca Marzanas, E-24346 Grulleros, León, Spain. laramoran@eae.csic.es
authors.forename: Lara
authors.initials: L
authors.lastname: Morán
authors.forename: F Javier
authors.initials: FJ
authors.lastname: Giráldez
authors.forename: Sara
authors.initials: S
authors.lastname: Panseri
authors.forename: Noelia
authors.initials: N
authors.lastname: Aldai
authors.forename: M José
authors.initials: MJ
authors.lastname: Jordán
authors.forename: Luca M
authors.initials: LM
authors.lastname: Chiesa
authors.forename: Sonia
authors.initials: S
authors.lastname: Andrés
mesh_terms: D045784:Abietanes / Q000378:metabolism*; D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D005227:Fatty Acids / Q000032:analysis* / Q000378:metabolism; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry / Q000378:metabolism; D010936:Plant Extracts / Q000378:metabolism*; D012756:Sheep / Q000254:growth & development / Q000378:metabolism*; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000378:metabolism
chemical_list: D045784:Abietanes; D005227:Fatty Acids; D010936:Plant Extracts; D055549:Volatile Organic Compounds; C018381:salvin