NMR and Chemometric methods: A powerful combination for characterization of Balsamic and Traditional Balsamic Vinegar of Modena

Application of automated eightfold suppression of water and ethanol signals in 1H NMR to provide sensitivity for analyzing alcoholic beverages

“…[8,9] An example of such multiselective pulses is shifted laminar pulse [10] that was successfully applied in studies about the interactions of organic solvents with biomolecules. [11] As for alcoholic beverages, suppression of both water and ethanol signals was used for beer [12] and wine [3,13] analysis. However, to our knowledge, suppression has never been applied to alcoholic beverages with high ethanol content (spirits).…”

Xylella fastidiosa and olive quick decline syndrome (CoDiRO) in Salento (southern Italy): a chemometric 1H NMR-based preliminary study on Ogliarola salentina and Cellina di Nardò cultivars

“…PLS-DA and OPLS-DA were used for the discrimination of samples with different characteristics (such as cultivars and/or geographical origin) as shown in several recent studies of metabolomics [13][14][15][16]. The robustness and predictive ability of the statistical models for discrimination purposes were tested by crossvalidation default method (7-fold) and further evaluated with permutation test (400 permutations) of SIMCA 14 software, Umetrics, Umea, Sweden [17,18].…”

The Balsamic Family

“…The fact that the refractive response of old TBV samples is higher than that of cooked must is likely due to the presence of high-molecular-weight biopolymers (Falcone and Giudici 2008). The reducing sugars, glucose and fructose, are present in isoforms, with only α and β pyranosidic forms present for glucose, but both pyranosidic and furanosidic α and β forms for fructose (Consonni et al 2008). Other minor sugars have been detected in TBV.…”