Document Detail

Effects of dietary incorporation of different antioxidant extracts and free-range rearing on fatty acid composition and lipid oxidation of Iberian pig meat.
MedLine Citation:
PMID:  22444809     Owner:  NLM     Status:  In-Data-Review    
This investigation was designed to evaluate the effects of feeding either free range or in confinement using concentrated diets with the same ingredients and oil source (5.5% of olive oleins) but with different antioxidant supplementation [control diet with a basal level of α-tocopheryl acetate (control); 200 mg/kg synthetic all-rac-α-tocopheryl acetate (Eall-rac); 200 mg/kg natural RRR-α-tocopheryl-acetate (ERRR-); flavonoid extract-enriched diet (AFlav); and phenolic compound-enriched extract (APhen)] on the fatty acid composition and lipid oxidation of Iberian pig muscle longissimus dorsi. The α-tocopherol concentration was significantly higher in muscles from free-range and ERRR- pigs than in muscles from Eall-rac pigs, and γ-tocopherol was only detected in muscles from free-range pigs. Longissimus dorsi muscles from free-range pigs had a significantly lower content of saturated fatty acids and higher content of polyunsaturated fatty acids than muscles from the other five groups of pigs fed in confinement; however, no significant effect on monounsaturated fatty acids was observed. No effect of dietary antioxidant supplementation (synthetic or natural α-tocopherol, flavonoid extract, or phenol extract) on the fatty acid composition of muscles was observed. A significant influence of dietary treatment on lipid oxidation was observed after 3 (P < 0.01), and 7 and 10 (P < 0.001) days of refrigerated storage, respectively. The lowest thiobarbituric acid-reactive substances (TBARS) values were found in pork chops from the free-range and ERRR- groups, intermediate values from the Eall-rac group, followed by AFlav and APhen, while the highest TBARS values corresponded to muscles from pigs fed the control concentrate. The source of α-tocopherol had a significant effect on lipid oxidation (P < 0.05), whereas the AFlav and APhen groups had similar TBARS values.
E González; J F Tejeda
Related Documents :
16280019 - N-retinoyl-d-glucosamine, a new retinoic acid agonist, mediates topical retinoid effica...
8016209 - Adventitious interconversion of cis- and trans-urocanic acid by laboratory light.
8070059 - Polysialic acid expression in the salamander retina is inducible by thyroxine.
2694159 - Synthesis and evaluation of some new retinoids for cancer chemoprevention.
8764579 - Changes in arachidonic acid levels and formation and in lipid synthesis in the human ne...
1482289 - 4-methylpyrazole partially ameliorated the teratogenicity of retinol and reduced the me...
6871619 - Bile acid and lysolecithin concentrations in the stomach of patients with gastric ulcer...
16280019 - N-retinoyl-d-glucosamine, a new retinoic acid agonist, mediates topical retinoid effica...
485649 - Free amino acids in semen: measurement and significance in normal and oligozoospermic men.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Animal : an international journal of animal bioscience     Volume:  1     ISSN:  1751-7311     ISO Abbreviation:  Animal     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2012-03-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101303270     Medline TA:  Animal     Country:  England    
Other Details:
Languages:  eng     Pagination:  1060-7     Citation Subset:  -    
1Animal Production, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Ctra de Cáceres s/n, 06071 Badajoz, Spain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Relationship between carcass weight, adipose tissue androstenone level and expression of the hepatic...
Next Document:  Young Salers suckled bull production: effect of diet on performance, carcass and muscle characterist...