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Article: Study on the Influence of Pasture on Volatile Fraction of Ewes' Dairy Products by Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry
- Article from:
- Journal of Dairy Science
- Article date:
- February 1, 2007
- Author:
CopyrightCopyright American Dairy Science Association Feb 2007. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
The detection of markers of identification of the geographical origin of food is an attractive challenge and, as far as dairy products are concerned, this paper represents a contribution to this field. In this research the influence of feed on the volatile compound composition was investigated on milk, 2-mo-old cheese (Caciotta), and whey cheese (ricotta) obtained from the same flock of Sarda ewes, under standardized technological conditions. Three different types of pasture (mixture of Lolium perenne and Trifolium squarrosum; rough pasture; Avena sativa) were studied. Solid-phase microextraction combined with gas chromatography-mass spectrometry was used and principal component ...