Citral


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Related to Citral: geraniol, citronellol

citral

[′si‚tral]
(organic chemistry)
C10H16O A pale-yellow liquid that in commerce is a mixture of two isomeric forms, alpha and beta; insoluble in water, soluble in glycerin or benzyl benzoate; used in perfumery and as an intermediate to form other compounds. Also known as geranial; geranialdehyde.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Citral

 

(also 3,7-dimethyl-2,6-octadienal), a terpene aldehyde. Citral is a light yellow liquid with the structural formula

It has a strong lemon-like odor. Citral is insoluble in water but soluble in alcohol and ether. It has a boiling point of 228°–229°C and a density of 0.887 g/cm3 at 20°C.

Citral consists of a mixture of two stereoisomeric forms: the trans form α-citral (I), or geranial, and the cis form β-citral (II), or neral. A component of many essential oils, it is separated industrially from these oils—especially from lemongrass oil, which contains up to 80 percent citral. It is also synthesized from such compounds as isoprene, acetylene, and acetone.

Citral is used as an ingredient of flavorings, perfumes, and drugs. It is also used as a raw material in the production of vitamin A and many valuable odoriferous substances, including citronellol, ionone, methylionone, iralia, and hydroxycitronellal.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Citral and linalool chemotypes of Lippia alba essential oil as anesthetics for fish: a detailed physiological analysis of side effects during anesthetic recovery in silver catfish (Rhamdia quelem).
Las tecnicas para microencapsular citral y otros derivados del aceite de limon en la industria alimentaria, en su mayoria se basan en sistemas coloidales blandos, siendo principalmente las emulsiones de aceite en agua, nanoemulsiones, complejos moleculares, liofilizacion, secado por atomizacion y secado por lecho fluidizado.
citratus essential oils and their main components citral (cis+trans 95% by Alfa Aesar.
Corroborating with these results, Jensen, Provan, Larssen, Bron and Obach (2015) verified that pure citral (0.3 g [kg.sup.-1] diet) had no effect on growth of Atlantic salmon (Salmo salar) fed for 30 days.
alba puede deberse principalmente por la accion del componente mayoritario encontrado: el citral. Por lo general, la accion inhibitoria del citral, al igual que componentes relacionados como el citronelal (encontrado a una concentracion de 0.11%) y el a-pineno, se ve reflejado en la granulacion del citoplasma, ruptura de la membrana celular e inactivacion o inhibicion de la sintesis de enzimas intra y extracelulares (Garcia et al.
However, the cytotoxic effect of Lippia alba, with its main constituent citral on HeLa and VERO cell lines was reported [18].
Dodecanal, 2-decenal, citronellal, citronellyl acetate, [alpha]-terpinyl acetate, [alpha]-pinene, citral, perillaldehyde, decanal, linalool, and citronellol were purchased from Sigma Aldrich (St.
In this context, monoterpene citral, an isomeric mixture of neral and geranial, a component of lemongrass oil, has been reported to have many biological activities such as antibacterial and anti-inflammatory activities [8-10].
[17] proposed the use of citral nanoemulsions to improve the physicochemical stability of the compound in addition to enhancing its antimicrobial action.
The percentage composition of myrcene in rosemary was 3.99 [+ or -] 0.2 and 5.01 [+ or -] 0.3 in eucalyptus, [beta]-lin1oo1 (0.45 [+ or -] 0.01, 0.50 [+ or -] 0.02), nerol (15.00 [+ or -] 0.02, 23.98 [+ or -] 0.03), citral (18.01 [+ or -] 0.02,14.02 [+ or -] 0.02), limonene oxide (0.40 [+ or -] 0.03, 1.05 [+ or -] 0.02), cineole (9.23 [+ or -] 0.03, 10.00 [+ or -] 0.01), berbenol (4.56 [+ or -] 0.02, 2.22 [+ or -] 0.02), and oleic acid (27.67 [+ or -] 0.01, 19.98 [+ or -] 0.02) (Table 4).
Most of the plant seeds contain resins and volatile oils such as borneol, camphene, citral, eucalyptol, linalool, phenllandrene, zingiberine and zingiberol phenols, responsible for its potent antimicrobial activities [17].