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Titolo:
Determination of authenticy, regional origin, and vintage of Slovenian wines using a combination of IRMS and SNIF-NMR analyses
Autore:
Ogrinc, N; Kosir, IJ; Kocjancic, M; Kidric, J;
Indirizzi:
Jozef Stefan Inst, Dept Environm Sci, Ljubljana 1000, Slovenia Jozef Stefan Inst Ljubljana Slovenia 1000 Sci, Ljubljana 1000, Slovenia Natl Inst Chem, Ljubljana 1000, Slovenia Natl Inst Chem Ljubljana Slovenia 1000 st Chem, Ljubljana 1000, Slovenia Agr Inst Slovenia, Ljubljana 1000, Slovenia Agr Inst Slovenia Ljubljana Slovenia 1000 enia, Ljubljana 1000, Slovenia
Titolo Testata:
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
fascicolo: 3, volume: 49, anno: 2001,
pagine: 1432 - 1440
SICI:
0021-8561(200103)49:3<1432:DOAROA>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
NATURAL ABUNDANCE LEVEL; DATA-BANK WINES; ISOTOPE FRACTIONATION; DEUTERIUM CONTENT; FRUIT JUICES; ETHANOL; CARBON; IDENTIFICATION; HYDROGEN; GERMANY;
Keywords:
Slovenian wines; natural stable isotope ratios; PCA; LDA; geographical origin; authenticity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Ogrinc, N Trent Univ, Dept Chem, 1600 W Bank Dr, Peterborough, ON K9J 7B8,Canada Trent Univ 1600 W Bank Dr Peterborough ON Canada K9J 7B8 Canada
Citazione:
N. Ogrinc et al., "Determination of authenticy, regional origin, and vintage of Slovenian wines using a combination of IRMS and SNIF-NMR analyses", J AGR FOOD, 49(3), 2001, pp. 1432-1440

Abstract

The authenticity and geographical origin of wines produced in Slovenia were investigated by a combination of IRMS and SNIF-NMR methods. A total of 102 grape samples of selected wines were carefully collected in three different wine-growing regions of Slovenia in 1996, 1997, and 1998. The stable isotope data were evaluated using principal component analysis (PCA) and Linear discriminant analysis (LDA). The isotopic ratios to discriminate between coastal and continental regions are the deuterium/hydrogen isotopic ratio of the methylene site in the ethanol molecule (D/H)(II) and delta C-13 values; including also delta O-18 values in the PCA and LDA made possible separation between the two continental regions Drava and Sava. It was found that delta O-18 values are modified by the meteorological events during grape ripening and harvest. The usefulness of isotopic parameters for detecting adulteration or watering and to assess the geographical origin of wines is improved only when they are used concurrently.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 18:30:41