A method for the determination of furanic compounds intraditional balsamic vinegars is proposed. It is based on ionexclusion chromatographic separation and diode-array detection of furans through an isocratic elution with 0.01N phosphoric acid and 16% acetonitrile. Preliminary trials on standard compounds stability in heat–acidic conditions are also performed. In all the 19 samples analyzed, 2-furoic acid, 5HMF, and furfural are found.No sample contains 4-hydroxy-2,5-dimethyl-3-(2H)-furanone(DHMF); 2-acetylfuran; or furfuryl alcohol. Three Unknown compounds are also detected. The last eluting of these compoundsis identified as 5-acethoxymethylfurfural, and, notwithstanding apartial hydrolysis in our chromatographic conditions, itsquantitation can be carried out.
Determination of furanic compounds in traditional balsamic vinegars by ion-exclusion liquid chromatography and diode-array detection / F., Chinnici; Masino, Francesca; Antonelli, Andrea. - In: JOURNAL OF CHROMATOGRAPHIC SCIENCE. - ISSN 0021-9665. - STAMPA. - 41:6(2003), pp. 305-310. [10.1093/chromsci/41.6.305]
Determination of furanic compounds in traditional balsamic vinegars by ion-exclusion liquid chromatography and diode-array detection
MASINO, Francesca;ANTONELLI, Andrea
2003
Abstract
A method for the determination of furanic compounds intraditional balsamic vinegars is proposed. It is based on ionexclusion chromatographic separation and diode-array detection of furans through an isocratic elution with 0.01N phosphoric acid and 16% acetonitrile. Preliminary trials on standard compounds stability in heat–acidic conditions are also performed. In all the 19 samples analyzed, 2-furoic acid, 5HMF, and furfural are found.No sample contains 4-hydroxy-2,5-dimethyl-3-(2H)-furanone(DHMF); 2-acetylfuran; or furfuryl alcohol. Three Unknown compounds are also detected. The last eluting of these compoundsis identified as 5-acethoxymethylfurfural, and, notwithstanding apartial hydrolysis in our chromatographic conditions, itsquantitation can be carried out.
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