Objective physico-chemical methods for the characterization of agricultural produce are
important ways of providing impartial information on the composition and origin of food …

Stable isotope analysis of grape juices and fermented products involving 2H‐NMR
spectroscopy and isotope ratio mass spectroscopy was carried out in combination with …

The authentication potential of combined isotopic and trace element analyses of wines from
a relatively restricted geographical area has been estimated for the Bordeaux region in …

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 …

Numerous works have shown that the mineral composition of plants is influenced by the
element levels in the ground, by fertilization methods, by the physiological aspects typical of …

For characterization of the origin of a wine, the NMR determination of site-specific natural
isotope fractionation (SNIF-NMR) provides a new approach. Relative and absolute values of …

Analysis of trace elements and ratios of stable isotopes have been shown to be a valuable
tool to discriminate wines according to their region of origin. Several factors, such as …

Stable isotope ratio analysis of wine by 2H-SNIF®-NMR, 13C-, and 18O-isotope ratio mass
spectrometry are official methods in the European Union for the proof of chaptalization …

The implementation of stable isotope applications in official food analyses began in 1990. At
that time the first method to detect sucrose from sugar beet or sugar cane in wine by …

It is known that 1 H NMR spectroscopy represents a good tool for predicting the grape
variety, the geographical origin, and the year of vintage of wine. In the present study we …