Effect of type of muscle and Cu supplementation on trace element concentrations in cattle meat

Title: Effect of type of muscle and Cu supplementation on trace element concentrations in cattle meat
Authors: García-Vaquero, MarcoMiranda, MartaBenedito, José LuisBlanco-Penedo, IsabelLópez-Alonso, Marta
Permanent link: http://hdl.handle.net/10197/11302
Date: Jun-2011
Online since: 2020-03-06T11:49:32Z
Abstract: Considering that meat is an important source of metals exposure to humans it is important to explore trace element concentrations in different types of muscles. Because of the demonstrated effect of Cu-supplementation on mineral status, the influence of Cu-supplementation was also evaluated. Samples of four different muscles (diaphragm, cardiac, semitendinous and pectoral, n=120) from beef calves receiving typical commercial diets Cu-supplemented (15mg Cu2SO4/kg DM) and non-supplemented were taken and acid digested. The levels of non-essential (As, Cd, Hg, Pb and Sn) and essential (Co, Cr, Fe, Mn, Mo, Ni, Se and Zn) elements were analyzed by ICP-MS. The statistical analyzes included two way Anova, post hoc DHS Tukey and Spearman correlations. The most active and less fat containing muscles showed in general the highest essential and the lowest non-essential trace element accumulation. As and Hg muscular residues are indicative of animal exposure, however, in situations of an adequate mineral status, essential trace element concentrations in muscle are irrespective of the mineral status of the animal and could be possibly related to their own particular muscular metabolism. Cu-supplementation significantly reduced As but caused a significant decrease of Se, which could have significance for the animal's health.
metadata.dc.description.othersponsorship: Xunta de Galicia
Fondo Social Europeo
Type of material: Journal Article
Publisher: Elsevier
Journal: Food and Chemical Toxicology
Volume: 49
Issue: 6
Start page: 1443
End page: 1449
Copyright (published version): 2011 Elsevier
Keywords: Skeletal muscleDiaphragmMyocardiumAnimalsCattleSeleniumTrace elementsCopper sulfateFood contaminationDietary supplementsMeat products
DOI: 10.1016/j.fct.2011.03.041
Language: en
Status of Item: Peer reviewed
Appears in Collections:Agriculture and Food Science Research Collection

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