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The Volatile profile of longissimus dorsi muscle of heifers fed pasture, pasture silage or cereal concentrate: implication for dietary discrimination

Vasta, Valentina and Luciano, Giuseppe and Dimauro, Corrado and Röhrle, Florian and Priolo, Alessandro and Monhahan, Frank J. and Moloney, Aidan P. (2011) The Volatile profile of longissimus dorsi muscle of heifers fed pasture, pasture silage or cereal concentrate: implication for dietary discrimination. Meat Science, Vol. 87 (3), p. 282-289. eISSN 1873-4138. Article.

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DOI: 10.1016/j.meatsci.2010.11.003

Abstract

The aim of this study was to determine the effect of different diets on beef meat volatile organic compounds (VOC). Seven heifers grazed pasture for twelve months (group P); 8 heifers received grass silage ad libitum indoors for six months and then were switched to pasture for six months (group SiP); 8 heifers received grass silage ad libitum indoors for six months and then switched to pasture and also offered 0.5 of the diet dry matter of concentrate for six months (group SiPC); 8 heifers received concentrate for twelve months (group C). The muscle longissimus dorsi was sampled at slaughter and subjected to VOC analysis by SPME-GC-MS. Some aldeyhdes, ketones and furans deriving from lipid oxidation were affected by the treatments. Skatole, 3-undecanone, cuminic alcohol and 1-butanol, 2-methyl allowed the discrimination between animals fed concentrate from animals fed non-concentrate diets. Germacrene D, a terpenoid, was a marker of grass feeding.

Item Type:Article
ID Code:5472
Status:Published
Refereed:Yes
Uncontrolled Keywords:Cattle, meat, SPME/CG/MS, α-Tocopherol, volatile compounds
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/19 Zootecnica speciale
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze zootecniche
Publisher:Elsevier
eISSN:1873-4138
Copyright Holders:© 2010 The American Meat Science Association
Deposited On:21 Feb 2011 10:36

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