title: The potential of e-nose aroma profiling for identifying the geographical origin of licorice (Glycyrrhiza glabra L.) roots.
abstract: Licorice roots cultivated commercially in distinct geographical areas such as China, Iran, Italy (Abruzzo, Basilicata, Calabria and Sicily) and Turkey were classified using an artificial olfactive system (e-nose) based on metal oxide semiconductor sensors (MOS). The resultant instrumental data were processed using a multivariate statistical analysis method in order to classify the raw samples according to its origin. The e-nose odourprintings were obtained by a canonical discriminant analysis carried out with the aim of relating the specific data-sets corresponding to whole licorice roots aroma with the e-nose reference dataset. E-nose results were compared to those obtained by SPME/GC-MS. The HS-SPME/GC/MS analysis was used as a control system to check for the actual existence of differences in the chemical composition of sample headspace. These results imply the possibility to use an electronic nose as a tool for a quick, effective and non-destructive authentication of licorice roots.
authors.affiliation: Department of Agriculture, Laboratory of Food Chemistry, University of Reggio Calabria, Feo di Vito, 89100 Reggio Calabria, Italy; Fondazione Mediterranea Terina, Research Laboratory "Quality and Food Safety and New Technologies" - Qua.Sic.A.Tec. MIUR Acc n. 28/2010, Area Industriale, 88046 Lamezia Terme (CZ), Italy. Electronic address: mariateresa.russo@unirc.it.
authors.forename: Mariateresa
authors.initials: M
authors.lastname: Russo
authors.affiliation: Fondazione Mediterranea Terina, Research Laboratory "Quality and Food Safety and New Technologies" - Qua.Sic.A.Tec. MIUR Acc n. 28/2010, Area Industriale, 88046 Lamezia Terme (CZ), Italy.
authors.forename: Demetrio
authors.initials: D
authors.lastname: Serra
authors.affiliation: Fondazione Mediterranea Terina, Research Laboratory "Quality and Food Safety and New Technologies" - Qua.Sic.A.Tec. MIUR Acc n. 28/2010, Area Industriale, 88046 Lamezia Terme (CZ), Italy.
authors.forename: Francesca
authors.initials: F
authors.lastname: Suraci
authors.affiliation: Department of Agriculture, Laboratory of Food Chemistry, University of Reggio Calabria, Feo di Vito, 89100 Reggio Calabria, Italy.
authors.forename: Rosa
authors.initials: R
authors.lastname: Di Sanzo
authors.affiliation: Department of Agriculture, Laboratory of Food Chemistry, University of Reggio Calabria, Feo di Vito, 89100 Reggio Calabria, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Fuda
authors.affiliation: Fondazione Mediterranea Terina, Research Laboratory "Quality and Food Safety and New Technologies" - Qua.Sic.A.Tec. MIUR Acc n. 28/2010, Area Industriale, 88046 Lamezia Terme (CZ), Italy.
authors.forename: Santo
authors.initials: S
authors.lastname: Postorino
mesh_terms: D062609:Electronic Nose; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006035:Glycyrrhiza / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*; D012903:Smell
keywords: Artificial olfactory system; E-nose; Glycyrrhiza glabra L.; HS-SPME/GC–MS; Metal oxide semiconductor