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Geographical traceability of Italian white truffle ( Tuber magnatum Pico) by the analysis of volatile organic compounds
Author(s) -
Gioacchini Anna Maria,
Menotta Michele,
Guescini Michele,
Saltarelli Roberta,
Ceccaroli Paola,
Amicucci Antonella,
Barbieri Elena,
Giomaro Giovanna,
Stocchi Vilberto
Publication year - 2008
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.3714
Subject(s) - truffle , chemistry , mass spectrometry , fraction (chemistry) , aroma , gas chromatography–mass spectrometry , traceability , chemometrics , chromatography , food science , botany , statistics , mathematics , biology
Results are presented that were obtained on the geographic traceability of the white truffle Tuber magnatum Pico. Solid‐phase microextraction coupled to gas chromatography/mass spectrometry (SPME‐GC/MS) was employed to characterize the volatile profile of T . magnatum white truffle produced in seven geographical areas of Italy. The main components of the volatile fraction were identified using SPME‐GC/MS. Significant differences in the proportion of volatile constituents from truffles of different geographical areas were detected. The results suggest that, besides genetic factors, environmental conditions influence the formation of volatile organic compounds. The mass spectra of the volatile fraction of the samples were used as fingerprints to characterize the geographical origin. Next, stepwise factorial discriminant analysis afforded a limited number of characteristic fragment ions that allowed a geographical classification of the truffles studied. Copyright © 2008 John Wiley & Sons, Ltd.