作者
Anna Maria Gioacchini, Michele Menotta, Luana Bertini, Ismaela Rossi, Sabrina Zeppa, Alessandra Zambonelli, Giovanni Piccoli, Vilberto Stocchi
发表日期
2005/9/15
期刊
Rapid Communications in Mass Spectrometry: An International Journal Devoted to the Rapid Dissemination of Up‐to‐the‐Minute Research in Mass Spectrometry
卷号
19
期号
17
页码范围
2365-2370
出版商
John Wiley & Sons, Ltd.
简介
This study describes a rapid method to identify different truffle species by analysis of their volatile compound fraction using static headspace solid‐phase microextraction gas chromatography/mass spectrometry. The volatile organic compounds (VOCs) were extracted using a new 2‐cm 50/30 µm DVB/CAR/PDMS fiber placed for 10 min in the headspace of the truffle sample with the vial maintained at 20°C (in a thermostatically controlled analysis room). The mass spectra of the VOC chromatograms were represented as ‘fingerprints’ of the analysed samples. Next, stepwise factorial discriminant analysis afforded a limited number of characteristic fragment ions that allowed a classification of the truffle species studied. This new method provides an effective approach to rapid quality control and identification of truffle species by analysis of their volatile fraction. Moreover, this method offers the advantage of minimizing …
引用总数
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AM Gioacchini, M Menotta, L Bertini, I Rossi, S Zeppa… - Rapid Communications in Mass Spectrometry: An …, 2005