Results
Among the 11 odorants tested, the overall threshold range was four orders of magnitude, varying from -1.5 log ppm to -5.5 log ppm. For n-carboxylic acids, there was an overlap between the threshold ranges of n-pentanoic acid, n-hexanoic acid and n-heptanoic acid; as well as between n-propanoic acid and n-butanoic acid, respectively.
It should be noted, however, that five out of six mice displayed their lowest threshold values with n-butanoic acid. N-octanoic acid yielded the highest olfactory detection thresholds which did not overlap with any of the other n-carboxylic acids.
Comparison of different unbranched carboxylic acids
Comparison of olfactory detection threshold values of different unbranched carboxylic acids, expressed as vapor phase concentrations. Each data point represents an individual animal.
Comparison of iso- vs n- forms of carboxylic acids
Comparison of olfactory detection threshold values of different branched carboxylic acids, expressed as vapor phase concentrations. Each data point represents an individual animal.
Comparison of different Species
Comparison of olfactory detection threshold values of different species for n-carboxylic acids, expressed as vapor phase concentrations. Each symbol represents the lowest threshold value in log ppm for each odorant tested.
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Director of undergraduate studies Biology
Last updated:
05/21/11