Coverage progresses from an overview of flavor and fragrance materials to sample preparation, analysis of raw materials and finished products, gas chromatography and olfactometry
, multivariate techniques, and electronic nose technology and applications.
The standard method for making quantitative measurements of compost odor is by odor panel validation or olfactometry
Use of gas chromatography olfactometry
(GC-O) to detect unknown emissions from building products containing linseed oil.
The investigators fractionated the aroma extract into acidic and neutral-basic components before it was analyzed by gas chromatography olfactometry
and gas chromatography mass spectrometry.
And he'll use his lab's olfactometry
equipment to separate and analyze the smells created by the various compounds.
Using atmospheric pressure chemical ionization, mass spectrometry and olfactometry
, Dutch scientists studied the importance of different aromas for satiation, from both the consumer and food product points of view.
Perschbacher-Buser, for "Odor Characterization of Open-Lot Beef Cattle Feedyards Using Triangular Forced-Choice Olfactometry
," Transactions of the ASAE, Vol.
The technique combines olfactometry
and gas chromatography-olfactometry
One is dynamic olfactometry
, which presents air samples over a series of dilution ratios to trained odor panelists.
In a double-blind placebo-controlled randomized cross-over full factorial design, the researchers gave healthy subjects two different aroma profiles using a computer-controlled stimulator based on air dilution olfactometry
The investigators used solvent-assisted flavor evaporation (SAFE) with gas chromatography olfactometry
(GC-O) and GC-mass spectrometry (GC-MS) techniques to extract, characterize and identify aroma-active compounds in peanuts.
Using a selective and sensitive bioassay for smells based on gas chromatography olfactometry
, called CharmAnalysis, scientists have investigated the compounds responsible for specific anosmia.