Document Detail


Element concentrations in Chianti Classico appellation wines.
MedLine Citation:
PMID:  14650628     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The concentrations of 21 elements (Al, B, Ba, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, P, Pb, S, Si, Sr, Ti, V and Zn) were determined in wine samples of the very popular Italian Chianti Classico appellation, vintage 1997. Concentrations of most elements in Chianti Classico wines fell in the range of European red wines. Data variability (expressed as a coefficient of variation, CV) was maximum for elements more prone to exogenous contamination such as Cu (a residue of vineyard treatments; CV = 165), Pb (from atmospheric contamination; CV = 99) or Ni (from wine-making contamination; CV = 78). With respect to the results of a previous survey on 1987 vintage wines (n = 24) from the same appellation, levels of Mn, Cr, Pb and Cd decreased by a factor of 1.65, 1.84, 2.67, and 3.00, respectively. The improved quality and standard of hygiene in wine-making, and the phasing out of leaded gasoline during the last decade are probably responsible for these results. No differences were found for Al, Mg, Fe and Zn. The principal component analysis successfully distinguished Chianti Classico wines from Chianti and Venetian Cabernet Sauvignon, which were analysed for comparison. Seven elements (Al, Mg, Ca, K, Sr, Mn and Si) described a distinctive pattern. The classification success rate was lower for the two Tuscan wines because of similarities in the growing environment and variety composition. However, several elements appear as important chemometric parameters for developing a specific system to protect the designation of origin of Chianti Classico wines.
Authors:
Fabrizio Monaci; Roberto Bargagli; Silvano Focardi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)     Volume:  17 Suppl 1     ISSN:  0946-672X     ISO Abbreviation:  J Trace Elem Med Biol     Publication Date:  2003  
Date Detail:
Created Date:  2003-12-02     Completed Date:  2004-07-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508274     Medline TA:  J Trace Elem Med Biol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  45-50     Citation Subset:  IM    
Affiliation:
Dipartimento di Scienze Ambientali "G. Sarfatti", Università degli Studi di Siena, Siena, Italy. monaci@unisi.it
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MeSH Terms
Descriptor/Qualifier:
Aluminum / analysis
Cadmium / analysis
Chromium / analysis
Copper / analysis
Iron / analysis
Lead / analysis
Magnesium / analysis
Manganese / analysis
Nickel / analysis
Spectrophotometry, Atomic
Time Factors
Trace Elements*
Wine*
Zinc / analysis
Chemical
Reg. No./Substance:
0/Trace Elements; 7429-90-5/Aluminum; 7439-89-6/Iron; 7439-92-1/Lead; 7439-95-4/Magnesium; 7439-96-5/Manganese; 7440-02-0/Nickel; 7440-43-9/Cadmium; 7440-47-3/Chromium; 7440-50-8/Copper; 7440-66-6/Zinc

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


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