Comment on Excitation-Emission Fluorescence Spectroscopy Combined with Three-Way Methods of Analysis as a Complementary Technique for Olive Oil Characterization

摘要

Sir:In a recent work(1a)the authors presented a rapid method of the authentication of olive oils using three chemio-metric analyses of fluorometric data.Twelve of 13 extra virgin olive oils(EVOO)were differentiated from 16 olive(OO),2 virgin olive(VOO),and 2 olive pomace(OPO)oils.The EVOOs were distinguished from the OOs on the basis of their fluorescence bands in the 400-600 nm range obtained with the right-angle(RA)technique.Such RA emissions consist of only one band in the OOs and of four weak bands in the EVOOs.