Citation: Yury Kovalchuk et al.; "In vivo odourant
response properties of migrating adult-born neurons in the mouse olfactory bulb"; Nature Communications, 2015; 6: 6349 DOI: 10.1038/ncomms7349
 The gas is odourless and colourless, but an odourant
is added to the container before sale.
They used 128 different odourant
molecules to concoct their mixtures.
However, 2,4decadienal is considered as a more important odourant
for chicken flavour compared to hexanal due to its much lower odour threshold (Shi and Ho, 1994).
It said minimum odourant
level was laid down by law and monitored by the Health and Safety Executive.
Each valve was connected by Portex tubing to a 250-ml gas-washing bottle which contained 55 ml of an odourant
. The gas-washing bottles were hidden from the participants' view by black postercard.
Modern professional perfumers train at specialist colleges, smelling odourants
on paper strips in thousands of combinations until they can identify hundreds of materials and nuances in quality.
Identification of potent odourants
in static headspace samples of green and black tea powders on the basis of aroma extract dilution analysis (AEDA).
According to the European Standard these materials should be tested for suitability, by verifying whether or not they can store a mixture of odourants
with minimal variations in odour and composition for times of storage of 30 hours, which is the maximum storage time allowed by the European Standard.
Coimbra, "Volatile composition of Baga red wine: assessment of the identification of the would-be impact odourants
," Analytica Chimica Acta, vol.
difference in Lavender (2001) stress/arousal scores odourants
were (Motomura, between stress and associated Sakurai, stress/lavender with reduced and Yotsuya condition and between mental stress 2001) Japan stress only and non-stress condition (p< 0.01) No sig.
Awaken olfactory receptors of humans and experimental animals by coffee odourants
to induce appetite.