The Impact of Grape Varieties to Wine Isotopic Characterization

1H-NMR Profiling and Carbon Isotope Discrimination as Tools for the Comparative Assessment of Walnut (Juglans regia L.) Cultivars with Various Geographical and Genetic Origins—A Preliminary Study

“…The carbon stable isotopes are important for biological, cultivar and climatic differentiation [24,29,30]. Variation of δ 13 C values between different plants and plant products may be attributed, besides the metabolic pathway, to geographical origin, environmental factors (temperature, humidity, rainfall, light exposure, water availability), cultivar, growth conditions and harvest time [26].…”

Classification of red wines using suitable markers coupled with multivariate statistic analysis

“…Isodat version 3.0 processing software was used for processing data. Working experimental conditions were described in a previous paper (Costinel et al, 2011). The calibration of the instrument was performed with CO 2 4.5 (99.995 %) from a tank, which was previously calibrated with BCR 656.…”

“…to obtain fingerprints that characterize different classes. Usually, fingerprints of wine natural organic constituents were used as suitable tools to classify wines varieties (Saurina, 2010;Versari et al, 2014), whereas isotopic ratios ( 13 C/ 12 C, 18 O/ 16 O and 2 H/ 1 H) can provide information for both variety and vintage discrimination (Costinel, Tudorache, Ionete, & Vremera, 2011;de Villiers, Alberts, Tredoux, & Nieuwoudt, 2012).…”

The application of SNIF‐NMR and IRMS combined with C, H and O isotopes for detecting the geographical origin of Chinese wines

“…In addition, other analytical techniques such as HPLC, GC, GC-MS, ICP-AES, ICP-MS, IR, IRMS and NMR have also been used to detect the adulteration of food products (Cordella et al, 2002;Ogrinc et al, 2003;Jaganathan et al, 2006;Di Paola-Naranjo et al, 2011;Giusti et al, 2011). Multi-element stable isotope analysis by SNIF-NMR and IRMS was proposed to be a powerful technique, especially in determining the authenticity and geographical origin of wine (Monakhova et al, 2014;Ogrinc et al, 2001Ogrinc et al, , 2003Roßmann et al, 1999;Pîrn au et al, 2013;Costinel et al, 2011;Aghemo et al, 2011). China is a vast territory with a diverse climate and has a buoyant wine market due to a large population.…”