Geographical traceability of Italian white truffle (Tuber magnatum Pico) by the analysis of volatile organic compounds

Authors

  • Anna Maria Gioacchini,

    Corresponding author
    1. Istituto di Ricerca sull'Attività Motoria, Via I. Maggetti 26, Università degli Studi di Urbino ‘Carlo Bo’, 61029 Urbino, Italy
    • Istituto di Ricerca sull'Attività Motoria, Via I. Maggetti 26, Università degli Studi di Urbino ‘Carlo Bo’, 61029 Urbino, Italy.
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  • Michele Menotta,

    1. Istituto di Chimica Biologica ‘Giorgio Fornaini’, Via A. Saffi 2, University of Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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  • Michele Guescini,

    1. Istituto di Ricerca sull'Attività Motoria, Via I. Maggetti 26, Università degli Studi di Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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  • Roberta Saltarelli,

    1. Istituto di Chimica Biologica ‘Giorgio Fornaini’, Via A. Saffi 2, University of Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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  • Paola Ceccaroli,

    1. Istituto di Chimica Biologica ‘Giorgio Fornaini’, Via A. Saffi 2, University of Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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  • Antonella Amicucci,

    1. Istituto di Chimica Biologica ‘Giorgio Fornaini’, Via A. Saffi 2, University of Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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  • Elena Barbieri,

    1. Istituto di Ricerca sull'Attività Motoria, Via I. Maggetti 26, Università degli Studi di Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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  • Giovanna Giomaro,

    1. Istituto di Botanica e Orto Botanico ‘Pierina Scaramella’, University of Urbino, 61029 Urbino, Italy
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  • Vilberto Stocchi

    1. Istituto di Ricerca sull'Attività Motoria, Via I. Maggetti 26, Università degli Studi di Urbino ‘Carlo Bo’, 61029 Urbino, Italy
    2. Istituto di Chimica Biologica ‘Giorgio Fornaini’, Via A. Saffi 2, University of Urbino ‘Carlo Bo’, 61029 Urbino, Italy
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Abstract

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.

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