Boron Isotopic Ratio in Brazilian Red Wines: a Potential Tool for Origin and Quality Studies?

Abstract

For the first time, the boron isotopic ratio is reported for Brazilian red wines. The boron concentration, 11 B/ 10 B isotopic ratio and δ 11 B were determined in 89 red wines produced in Campanha Gaúcha, Serra Gaúcha ( ). The obtained 11 B/ 10 B ratios were quite different from those observed in the literature. The ratios were quite similar among the Southern Brazilian wine producing areas, but a large difference was observed when compared with the Northeastern wines, allowing for the differentiation between these two important Brazilian wine regions. The results have also shown that is possible, based on the boron isotopic ratio, to differentiate the Brazilian red wines from Chilean, Italian and Portuguese red wine.

Tracing geographical origin of Lambrusco PDO wines using isotope ratios of oxygen, boron, strontium, lead and their elemental concentration

“…Therefore, since the natural variation of boron isotope ratio of the soil is reflected in the vine and therefore in wine, the parameter δ 11 B may represents a valuable tool in provenance and authentication studies ( Vorster, L. Greeff and P.P. Coetzee 2010 ; Almeida et al, 2017 ).…”