The measurements of ?13C in the pulp, sugars and ethanol obtained by IRMS method, and the (D/H)I and (D/H)II determined by SNIF-NMR, compared with the data from the literature, as well as the adulteration triangle show that the suspicions of adulterations of some juices on Slovenian and Cypriot markets were present. The effects of geographic origin on properties of commercially available juices was shown with the measurements of ?18O in water and of (D/H)II in the ethanol. Cypriot juices resulted to have significantly higher ?18O values, which can be explained with warmer climatic conditions.
COBISS.SI-ID: 22738471
Vegetable oil is one of the largest studied foods due to its nutritional and medicinal properties in a correct diet. In this paper, a total of 53 Camelina sativa samples (from all known growing areas) were chemically and isotopically characterized. The fatty acid content of camelina oil was determined by gas chromatography, the ratios of stable carbon isotopes (13C/12C) of individual fatty acids and seed/bulk oil were determined by gas chromatography-combustion-stable isotope ratio mass spectrometry and elemental analysis-stable isotope ratio mass spectrometry.
COBISS.SI-ID: 22355495