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 libitumindoors for sixmonths and then switched to pasture and also offered 0.5 of the diet dry matter of concentrate for sixmonths (group SiPC); 8 heifers received concentrate for twelvemonths (group C). Themuscle 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.
The volatile profile of longissimus dorsi muscle of heifers fed pasture, pasture silage or cereal concentrate: Implication for dietary discrimination / Vasta, V; Luciano, G; Dimauro, Corrado; Röhrle, F; Priolo, A; Monahan, F. J.; Moloney, A. P.. - In: MEAT SCIENCE. - ISSN 0309-1740. - 87:(2011), pp. 282-289. [10.1016/j.meatsci.2010.11.003]
The volatile profile of longissimus dorsi muscle of heifers fed pasture, pasture silage or cereal concentrate: Implication for dietary discrimination
DIMAURO, Corrado;
2011-01-01
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 libitumindoors for sixmonths and then switched to pasture and also offered 0.5 of the diet dry matter of concentrate for sixmonths (group SiPC); 8 heifers received concentrate for twelvemonths (group C). Themuscle 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.