OLFACTORY RESPONSIVENESS TO DIACETYL |
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| Authors: | HARRY T LAWLESS MICHAEL J ANTINONE RICHARD A LEDFORD MARY JOHNSTON |
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| Institution: | Food Science Department New York State College of Agriculture and Life Sciences Cornell University Ithaca, New York 14853 |
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| Abstract: | Odor thresholds in the headspace over aqueous solutions of diacetyl (butane-2,3-dione) were measured in quadruplicate by a forced-choice procedure in 53 individuals. Mean individual thresholds varied over a factor of 256, with the group average at .005 μg/ml. Thresholds showed a modest negative correlation with suprathreshold intensity ratings. Intensity ratings were distributed bimodally, consistent with the existence of insensitive and sensitive groups and suggesting the possibility of a specific anosmia for this compound. |
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