Analysis of virgin olive oil volatiles by a novel electronic nose based on a miniaturized SAW sensor array coupled with SPME enhanced headspace enrichment.
A novel electronic nose based on solid-phase microextraction (SPME) coupled with a surface acoustic wave (SAW) sensor array has been used to analyze different quality virgin olive oils. A mathematical model was designed with 37 samples to distinguish lampante from the other virgin olive oils categories (extra-virgin and virgin), because lampante-virgin olive oils cannot be consumed without a previous refining process. The model, successfully validated with a test set of 16 samples, was able to classify 90% of the samples correctly. Misclassifications were explained by SPME-HRGC analyses and a second sensory evaluation.
García-González
Diego L
DL
Instituto de la Grasa (CSIC), Padre García Tejero 4, 41012 Seville, Spain. dluisg@cica.es
Barie
Nicole
N
Rapp
Michael
M
Aparicio
Ramón
R
D000162:Acoustics; D002849:Chromatography, Gas / Q000379:methods*; D004581:Electronics; D008962:Models, Theoretical; D009666:Nose; D009812:Odorants / Q000032:analysis*; D000069463:Olive Oil; D010938:Plant Oils / Q000737:chemistry*; D015203:Reproducibility of Results; D014835:Volatilization
D000069463:Olive Oil; D010938:Plant Oils