| Research Abstract |
A newly smell communication system with analyzing and reproducing chemical constituents of smell was investigated with three steps, (A) Constructions of biochemical gas-sensors and nose system with high gas-selectivity, (B) Fabrication of a smell regenerator, (C) Construction and sensory evaluation of the smell communication system. The detailed results are described as follows.
(A) Several kinds of biochemical gas-sensors (bio-device, bio-sniffer) were developed by immobilizing biological catalysts (enzyme) onto sensing tip of dissolved oxygen electrode, screen printed electrodes and oxygen sensitive optical fibers. Detectable gas-substances: ethanol, dimethyl sulfide, trimethylamine, methyl mercaptan, ammonia, acetaldehyde, formaldehyde, etc.
(B) The smell reproducer for typical smell constituents, ethanol (alcohol-), trimethylamine (fish-), methyl mercaptan (radish-) and dimethyl sulfide(seaweed-odor substance), was fabricated using 2 x 2ch gas-generators (totally 4ch).
(C) The smell communication system for the above mentioned constituents was constructed by connecting (A) the bio-nose with (B) the gas-reproducer. The system was applied for smell communications of food and drink (alcohol, fish, radish and seaweed), and evaluated by the sensory test with healthy male subjects, thus obtained over 80% of smell transmissibility.
|
