Premium
EVALUATION OF OLFACTORY INTENSITY: COMPARATIVE STUDY OF TWO METHODS
Author(s) -
ATANASOVA BORIANA,
LANGLOIS DOMINIQUE,
NICKLAUS SOPHIE,
CHABANET CLAIRE,
ETIÉVANT PATRICK
Publication year - 2004
Publication title -
journal of sensory studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 53
eISSN - 1745-459X
pISSN - 0887-8250
DOI - 10.1111/j.1745-459x.2004.tb00150.x
Subject(s) - sniffing , repeatability , ethyl butyrate , audiology , odor , stimulus (psychology) , mathematics , psychology , pattern recognition (psychology) , statistics , artificial intelligence , computer science , chromatography , chemistry , cognitive psychology , medicine , ethyl acetate , neuroscience
Two experimental procedures recommended for the evaluation of the psychophysical characteristics of odorous compounds, olfactory matching with the 1‐butanol scale and cross‐modality matching with the finger span are compared. The intensity of ethyl butyrate and guaiacol solutions presented at four different concentration levels was evaluated by a panel of sixteen subjects over five repetitions using the two methods. Each stimulus was delivered to the subject from a Teflon bag through a nose‐shaped glass sniffing port. The discrimination ability, repeatability, panel homogeneity and within‐subject variability of the methods were assessed. Results indicate that with both methods, subjects were able to highly discriminate the presented concentration levels of the odorants. There were no great difference in repeatability and the same individual variability was observed between both methods. However, the smaller within‐subject variability highlighted for the 1‐butanol scale method suggested that this method is potentially more powerful than finger‐span method.