title: Electronic nose and GC-MS analysis of volatile compounds in Tuber magnatum Pico: evaluation of different storage conditions.
abstract: The characteristic aromatic composition of white truffles (Tuber magnatum Pico) determines its culinary and commercial value. However modifications of truffle organoleptic proprieties occur during preservation. A study of headspace of white truffles by using Electronic nose (E-nose), gas chromatography-mass spectrometry (GC-MS) and sensory analyses was performed. Truffles were stored at different conditions for 7 days: +4 and +8°C wrapped in blotting paper or covered by rice or none of the above. Headspace E-nose measurements and sensory analyses were performed each day. Statistical multivariate analysis of the data showed the capability of E-nose to predict sensorial analysis scores and to monitor aroma profile changes during storage. Truffle's volatile molecules were also extracted by headspace solid phase microextraction technique and separated and identified by GC-MS. Partial Components Analysis of data was performed. E-nose and GC-MS results were in agreement and showed that truffle storage in paper at +8°C seemed to be the best storage condition.
authors.affiliation: Center for Integrated Research - CIR, Unit of Electronics for Sensor Systems, University Campus Bio-Medico, via Álvaro del Portillo 21, 00128 Rome, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Pennazza
authors.forename: C
authors.initials: C
authors.lastname: Fanali
authors.forename: M
authors.initials: M
authors.lastname: Santonico
authors.forename: L
authors.initials: L
authors.lastname: Dugo
authors.forename: L
authors.initials: L
authors.lastname: Cucchiarini
authors.forename: M
authors.initials: M
authors.lastname: Dachà
authors.forename: A
authors.initials: A
authors.lastname: D'Amico
authors.forename: R
authors.initials: R
authors.lastname: Costa
authors.forename: P
authors.initials: P
authors.lastname: Dugo
authors.forename: L
authors.initials: L
authors.lastname: Mondello
mesh_terms: D001203:Ascomycota / Q000737:chemistry*; D062609:Electronic Nose; D061353:Food Storage; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006801:Humans; D009812:Odorants / Q000032:analysis*; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D055549:Volatile Organic Compounds