Results 341 to 350 of about 54,368 (362)

On the Unpredictability of Odor

Angewandte Chemie International Edition, 2006
AbstractThe relationship between molecular structure and odor has fascinated and puzzled chemists for more than a century. Despite a great deal of research on structure–odor relationships, prediction of the odor of a novel molecule remains a statistical exercise and models only provide a probability of the character, threshold, and intensity. Surprises
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An odor compass for localizing an odor source

Sensors and Actuators B: Chemical, 1996
An odor-source localization system has been developed that mimics animal behavior. The directional probe is called an active sampling probe, and was modeled on the behavior of the silkworm moth. It was extended to an odor compass which continuously points towards the direction of the odor source, using a small fan and two semiconductor gas sensors. The
T.Nakamoto, H.Ishida, T.Moriizumi
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Evaluation of key odorants in sauvignon blanc wines using three different methodologies.

Journal of Agricultural and Food Chemistry, 2012
In this study three different approaches were employed to identify key odorants in Sauvignon blanc wines. First, the concentrations of the odorants were compared to their respective aroma detection thresholds.
F. Benkwitz, Laura Nicolau, C. Lund, Michelle K. Beresford, M. Wohlers, P. Kilmartin   +5 more
semanticscholar   +1 more source

Characterization of the key odorants in raw Italian hazelnuts ( Corylus avellana L. var. Tonda Romana) and roasted hazelnut paste by means of molecular sensory science.

Journal of Agricultural and Food Chemistry, 2012
The concentrations of 19 odorants, recently characterized by GC-olfactometry and aroma extract dilution analysis as the most odor-active compounds in raw hazelnuts, were quantitated by stable isotope dilution assays (SIDA).
A. Burdack-Freitag, P. Schieberle
semanticscholar   +1 more source

Odor Index: an Integration of Odor Parameters

2008 Providence, Rhode Island, June 29 - July 2, 2008, 2008
Abstract An integrated parameter, odor index, is developed to describe an odor and to evaluate odor debate technologies by incorporating the parameters of the odor concentration, odor intensity, and hedonic tone. An assumption is made that the odor index is equivalent to the geometrical mean of odor intensity and hedonic tone.
Ike Edeogu, Guoliang Qu, John J. R. Feddes   +2 more
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Odor Learning and Odor Memory in the Rat

1994
For many years it was believed that olfaction played an important role in species-specific but not learned or cognitive behaviors. This view was based largely on the fact that the modality was phylogenetically old, that it appeared to project only to primitive (limbic) parts of the brain, and that olfactory bulbectomy produced profound deficits in ...
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The role of algae and cyanobacteria in the production and release of odorants in water.

Environmental Pollution, 2017
Jechan Lee, P. Rai, Y. Jeon, Ki‐Hyun Kim, E. Kwon   +4 more
semanticscholar   +1 more source

ODORS, ODORANTS, AND DEODORANTS IN AVIATION

Annals of the New York Academy of Sciences, 1954
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Identification of odorants in wood of Calocedrus decurrens (Torr.) Florin by aroma extract dilution analysis and two-dimensional gas chromatography–mass spectrometry/olfactometry

Analytical and Bioanalytical Chemistry, 2017
Linda Schreiner, H. Loos, A. Buettner
semanticscholar   +1 more source

THE ODORANTS

Annals of the New York Academy of Sciences, 1954
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