Research article summary (published 10 Aug 2009):

Characterization of commercial slovenian and cypriot fruit juices using stable isotopes.

Full Abstract

The compositions of commercially available fruit juices on the Slovenian and Cypriot markets have been compared and checked against the corresponding declarations on the packaging. Values of delta(13)C in the pulp, sugars, and ethanol (produced by fermentation and distillation) have been obtained by isotope ratio mass spectrometry and (D/H)(I) and (D/H)(II) ratios determined by Site-specific Natural Isotope Fractionation NMR and compared with literature data. These data show that some juices on the Slovenian and Cypriot markets were adulterated. Measurements of delta(18)O in the water and of (D/H)(II) in the ethanol indicated a significant difference in commercially available juices due to differences of the "tap" water in Slovenia and Cyprus, as most of the juices were diluted from concentrate. Using Principal Component Analysis, very clear differentiation can be made between juices from the two countries, arising from their distinct aquatic environments and climates. The identification of botanical origin of fruit juices was possible only in the case of Slovenian orange and apple fruit juices.

Author information

Author/s: Ogrinc, Nives (N); Bat, Karmen (K); Kosir, Iztok Joze (IJ); Golob, Terezija (T); Kokkinofta, Rebecca (R);

Affiliation: Department of Environmental Sciences, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia. nives.ogrinc(-atsign-)ijs.si

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Journal of agricultural and food chemistry (J Agric Food Chem), published in United States. (Language: eng)

Reference: 2009-Aug; vol 57 (issue 15) : pp 6764-9

Dates: Created 2009/09/02; Completed 2009/11/03;

PMID: 19586026, status: MEDLINE (last retrieval date: 11/3/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Beverages - analysis Carbon Isotopes - chemistry Cyprus Fruit - chemistry

Isotope Labeling Mass Spectrometry Oxygen Isotopes - chemistry Slovenia

Associated Chemicals: Carbon Isotopes (0) ; Oxygen Isotopes (0)

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