Analysis of single-cultivar extra virgin olive oils by means of an Electronic Nose and HS-SPME/GUMS methods

Anno: 2006

Autori: Cimato A., Dello Monaco D., Distante C., Epifani M., Siciliano P., Taurino A.M., Zuppa M., Sani G.

Affiliazione autori: Univ Lecce, CNR, IMM, CNR,Microelect & Microsyst Inst, I-73100 Lecce, Italy
CNR IPSL, I-50018 Florence, Italy

Abstract: The detection of aroma volatile compounds emitted by extra virgin olive oils (EVOOs) is of key importance in the quality control of this product. Physical-chemical techniques (GC, GUMS, HPLC) and sensory analysis (panel test) are the classical methods used for this purpose, but they are expensive, time consuming, and do not allow on-line measurements.
In this paper a new device, an Electronic Nose, that is a sensor array based on pure and doped SnO2 sol-gel thin films used for the discrimination of different Mediterranean “single-cultivar” EVOOs, was presented. To confirm the sensor array responses, analytical technique like headspace-solid phase micro-extraction/gas chromatography/mass spectrometry (HS-SPME/GC/MS) analysis was applied to the analysis of volatiles compounds in EVOOs samples. Moreover sensory analysis on EVOOs was carried out.
The obtained GC/MS data were used to identify the particular compounds and characterize the chemical composition of the EVOOs samples. In addition a chemometric pattern recognition technique was used for multivariate data analysis. The variations in the GC/MS fingerprint of the different samples were analysed using principal component analysis (PCA). Statistical analyses were carried out on data obtained from Electronic Nose, GC/MS and sensory analysis.

Giornale/Rivista: SENSORS AND ACTUATORS B-CHEMICAL

Volume: 114 (2)      Da Pagina: 674  A: 680

Parole chiavi: principal component analysis; single-cultivar; Electronic Nose
DOI: 10.1016/j.snb.2005.06.058

Citazioni: 40
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-04-27
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