Document Detail


Traceability of Asiago mountain cheese: a rapid, low-cost analytical procedure for its identification based on solid-phase microextraction.
MedLine Citation:
PMID:  16162515     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The traceability of Asiago mountain cheese was established by analyzing samples of herbaceous species, milk, and cheese of mountain origin using the head-space solid-phase microextraction sampling procedure coupled with gas chromatography-mass spectrometry. As preliminary work had highlighted the characteristic presence of sesquiterpenes in Asiago mountain cheese, these species were considered effective markers of mountain origin. Systematic qualitative analysis, carried out using a carboxen/polydimethylsiloxane fiber, revealed several sesquiterpenes in mountain herbage and milk, in particular beta-caryophyllene and alpha-humulene, in Asiago mountain cheese, confirming sesquiterpenes as markers of cheese produced from animals grazing on mountain pastures. Analysis was performed on 19 samples of herbage, 8 of milk, and 8 of cheese, collected in summer from 4 mountain farms on the Asiago plateau. For quantitative analysis of caryophyllene in cheese, polydimethylsiloxane fiber sampling, coupled with the standard addition method to eliminate matrix effect, was preferred. The amount of beta-caryophyllene found ranged from 21 to 65 microg/kg.
Authors:
G Favaro; F Magno; A Boaretto; L Bailoni; R Mantovani
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of dairy science     Volume:  88     ISSN:  1525-3198     ISO Abbreviation:  J. Dairy Sci.     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-09-15     Completed Date:  2006-03-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985126R     Medline TA:  J Dairy Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3426-34     Citation Subset:  IM    
Affiliation:
Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy.
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MeSH Terms
Descriptor/Qualifier:
Altitude
Animals
Cheese / analysis*,  classification*
Gas Chromatography-Mass Spectrometry / economics,  methods
Geography
Milk / chemistry
Sesquiterpenes / analysis
Chemical
Reg. No./Substance:
0/Sesquiterpenes; 13877-93-5/caryophyllene; 6753-98-6/humulene

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


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