On the possibility of molecular recognition of taste substances studied by Gábor analysis of oscillations.
A liquid membrane oscillator containing nitromethane as membrane material has been investigated. The influence of substances responsible for taste belonging to four classes (sweetness, saltiness, sourness and bitterness) on oscillation patterns of liquid membrane oscillators with cationic surfactant benzyldimethyltetradecylammonium chloride (BDMTAC) was examined. A new approach based on Gábor transformation is proposed for obtaining the power spectra of the observed oscillating signals and for establishing "fingerprints" of the investigated substances. It was shown that two-dimensional form of these power spectra might be used efficiently for this purpose.
Płocharska-Jankowska
Elzbieta
E
Commodity Science Laboratory, Faculty of Economics and Management, Gdańsk University of Technology, Poland. ep@zie.pg.gda.pl
Szpakowska
Maria
M
Mátéfi-Tempfli
Stefan
S
Nagy
Ottó B
OB
D001548:Benzalkonium Compounds / Q000737:chemistry; D015374:Biosensing Techniques / Q000379:methods*; D000431:Ethanol / Q000737:chemistry; D008567:Membranes, Artificial; D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry; D009595:Nitroparaffins / Q000737:chemistry; D010507:Periodicity; D010851:Picrates / Q000737:chemistry; D013649:Taste
D001548:Benzalkonium Compounds; D008567:Membranes, Artificial; D009595:Nitroparaffins; D010851:Picrates; C005883:zephiramine; D000431:Ethanol; C005858:picric acid; D008697:Methane; C008640:nitromethane