Limonene


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Related to Limonene: linalool, geraniol

limonene

[′lim·nə‚lēn]
(organic chemistry)
C10H16 A terpene with a lemon odor that is optically active and is found in oils from citrus fruits and in oils from peppermint and spearmint; a colorless, water-insoluble liquid that boils at 176°C.

Limonene

 

1-methy1–4-isopropenylcyclohexene-1, a terpene hydrocarbon; colorless liquid with a lemony odor. Oxidizes readily in air. Boiling point, 176°C; density, 0.8411 g/cm3 at 20°C. Limonene exists in two optically active (+) and (-) forms, as well as a (±)-form (racemic mixture) commonly called dipentene.

Limonene is a component of many essential oils. For example, citrus oils contain mainly (+)-limonene (approximately 90 percent), which may be extracted by rectification processes. Dipentene is also found in turpentine. Limonene is used as an odoriferous substance in perfume and cosmetics manufacture.

References in periodicals archive ?
Because fully replacing BPA for limonene can be complicated for most industries at this moment, BPA can increasingly take over.
Limonene suppresses lipopolysaccharide- induced production of nitric oxide, prostaglandin E2, and pro-inflammatory cytokines in RAW 264.
At the treatment dose of 1,000 [micro]L/L, the most pronounced inhibition of methane production was noted for carvacrol, with the magnitude of inhibition decreasing in the following order: carvacrol (-86%), citral (-44%), bornyl acetate (-38%), [alpha]-pinene (-29%), [beta]-pinene (-28%), eugenol (-24%), linalool (-24%), limonene (-23%) and 1,4-cineole (-22%).
But [beta]-myrcene, [alpha]-pinene, limonene, bornyl acetate, geranyl acetate and [beta]-caryophyllene expressed no antibacterial effects.
Co-encapsulation of fish oil with phytosterol esters and limonene by milk proteins.
The use of the silk to encapsulate limonene provides a fully biodegradable, biocompatible encapsulation system which demonstrates the potential for limonene stabilization at elevated temperatures.
limonene a-pinene and AY-pinene were ordered from product supplier of Alfa Aesar company in Beijing China.
Selected reaction conditions ensure the higher limonene reaction rates and avoid diffusional limitation artifacts (Barrera et al.
2005) and [alpha]-pinene, [beta]-pinene, 3-carene, estragole, [alpha]-carinol, limonene, [beta]-phellandrene, [tau]-cardinol, [tau]-muurolol, myrcene, and [alpha]-terpineol in small ponderosa pines (Pinus ponderosa Lawson; Kelkar et al.
The characteristic organoleptic properties of limonene and its usage in food and other applications encouraged the scientists and industries to work extensively on its synthesis and microbial conversions [8-12].