Balsamic vinegar of Modena (ABM) is a product obtained from concentrated grape must with the addition of wine vinegar. It can be adulterated with the addition of exogenous water. The official method EN16466-3, based on the analysis of the stable isotope ratio δ18O of the water, is not applicable to ABM with high density (above 1.20 at 20 °C). In this work, for the first time, the official method was modified, providing for a prior dilution of the sample and applying a correction of the data in order to eliminate the isotopic contribution of the diluent, whereupon the within- and between-day standard deviations of repeatability (Sr) were estimated. Considering the limit values of δ18O for vinegar and concentrated must, the threshold limit of δ18O, below which the ABM product can be considered adulterated, has been identified.
Perini, M.; Pianezze, S.; Paolini, M.; Larcher, R. (2024-03-07). High-density balsamic vinegar: application of stable isotope ratio analysis to determine watering down. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 72 (4): 1845-1848. doi: 10.1021/acs.jafc.2c08362 handle: https://hdl.handle.net/10449/80715
High-density balsamic vinegar: application of stable isotope ratio analysis to determine watering down
Perini, Matteo
Primo
;Pianezze, Silvia;Paolini, Mauro;Larcher, RobertoUltimo
2024-03-07
Abstract
Balsamic vinegar of Modena (ABM) is a product obtained from concentrated grape must with the addition of wine vinegar. It can be adulterated with the addition of exogenous water. The official method EN16466-3, based on the analysis of the stable isotope ratio δ18O of the water, is not applicable to ABM with high density (above 1.20 at 20 °C). In this work, for the first time, the official method was modified, providing for a prior dilution of the sample and applying a correction of the data in order to eliminate the isotopic contribution of the diluent, whereupon the within- and between-day standard deviations of repeatability (Sr) were estimated. Considering the limit values of δ18O for vinegar and concentrated must, the threshold limit of δ18O, below which the ABM product can be considered adulterated, has been identified.File | Dimensione | Formato | |
---|---|---|---|
2024 JAFC Perini.pdf
accesso aperto
Tipologia:
Versione editoriale (Publisher’s layout)
Licenza:
Creative commons
Dimensione
1.68 MB
Formato
Adobe PDF
|
1.68 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.