Odors derivatives

Jiroma. The fragrance or odor of food, perceived by the nose by sniffing. In wines, the aroma refers to odors derived from the variety of grape, eg, muscat aroma. It is the overall odor impression as perceived by the nasal cavity. 

Fig. 23.1 Results of the odor preference test in a Y-maze (A). Female mice carrying lesions in either the MOE (B) or VNO (C) were given a choice between volatile odors derived from an intact or a gonadectomized male...

Boag, B. and Mlotkiewicz, J. A. (1994). Effect of odor derived from lion feces on behavior of wild rabbits. Journal of Chemical Ecology 20,631-637. 

Polyphenylenoxide (PPO) Substituted phenols are used as monomers for the production of polyphenylenoxides, (PPOs) so they as well as phenolic degradation products can be found as emitted odor active compounds. In one case the odor of a PPO was predominantly caused by 2,6-dimethylphenol and trimethylanisol as well as by a tentatively identified substituted methoxypyrazine (Mayer and Breuer, 2004a). Another potent odorant derived from higher molecular phenolic compounds, antioxidants for example, by the influence of heat (>200 °C) and pressure is guaiacol (2-methoxyphenol) (Mayer and Breuer, 2006). 

Movies have depicted its power to repel werewolves and vampires. The characteristic garlic odor derives from the many sulfur compounds it contains. One of the major constituents is allicin, a compound with antibacterial properties. 

Insects are the most diverse group animals on earth, with approximately five million species described to date (Novotny et al. 2002). Amidst this great diversity are adaptations common to all insects that maximize inclusive fitness in their respective habitats. One such fundamental adaptation is the ability to respond to cues in the environment, in particular the ability to detect external biological compounds via a chemical sensor. The sophisticated olfactory system of insects is able to sense volatile odorants derived from prey, host plants, and conspecific individuals. These compounds are detected by olfactory receptor neurons (ORNs) housed in the antennae, and these ORNs relay information about food sources, oviposition sites, and mates that leads to behavior based on neural responses mediated by the ORNs. The binding... 

When domestic wastewater is treated by chemical precipitation followed by carbon adsorption, one of the problems encountered is that the carbon columns become highly odorous. The odor derives from the reduction of S04 to HS by microorganisms growing within the carbon column on biodegradable adsorbed organic matter. This is the sulfate-reduction reaction. Attempts to alleviate the situation by injecting air into the columns have met with little success because the oxidation of sulfide by oxygen is not always a rapid process, especially if the sulfides... 

Formic acid is the irritant in the sting of certain ants. Vinegar is a 5 percent solution of acetic acid in water. Benzoic acid is used to synthesize aspirin. Carboxylic acids are found extensively in nature. The tartness of many fruits as well as sour milk is due to carboxylic acids. Some acids have very unpleasant odors. Derivatives of carboxylic acids are important in lipids (fats), synthetic plastics and fibers, aspirin, and soaps. 

YARMOR 60 pine oil" is a clear, pale yellow to near water-white oily liquid with a distinct pinelike odor. Derived from terpene oils of pinewood origin, it is a blend of related compounds, principally terpene alcohols. It is intended for manufacture of cleaners and disinfectants, and for other uses where a good-quality pine oil is required. 

Decahydronaphthalene - hI-( )dro- naf-tho- len (Decalin ) n. A saturated bicyclic hydrocarbon, CioHig, essentially two cyclohexane rings fused together, sharing two hydrogen atoms. The commercial product is a mixture of cis- and trans-isomers. It is a colorless liquid with an aromatic odor, derived by treating molten naphthalene with hydrogen in the presence of a catalyst. 

Uses Nongreasy emoiiient, soiubiiizer, bodying agent also low odor derivative Properties Gardner A color sol. in animal and veg. oils, ethanol insol. in water acid no. 0.7 iodine no. 12 Witafrol 7440 [SasolN.Am.]... 

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