ricinoleic acid


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Related to ricinoleic acid: castor oil

ric·i·no·le·ic ac·id

(ris'i-nō-lē'ik as'id),
An unsaturated hydroxy acid present in castor oil.

ricinoleic acid

(rĭs′ĭn-ō-lē′ĭk)
n.
An unsaturated fatty acid, C18H34O3, prepared from castor oil and used in making soaps and in textile finishing.

ricinoleic acid

C18H34O3, an unsaturated hydroxy acid making up about 80% of fatty acids in the glycerides of castor oil. It has a strong laxative action.
CAS # 141-22-0
See also: acid
References in periodicals archive ?
However, an individual plant of the accession PI 179729 from India showed a marked deviation from the range of other plants of the same accession and from the rest of accessions in oleic acid content (189 g [kg.sup.-1] compared with 36-56 g [kg.sup.1]) and in ricinoleic acid content (714 compared with 844-880 g [kg.sup.-1]) (Table 1).
Castor Oil Alkaline Hydrolysis and Extraction of Ricinoleic Acid. The procedure has been adapted from the work by Castro Dantas et al.
Similarly, refractive index (1.4772), viscosity (6.8), hydroxyl value (162), iodine value (85) and fatty acid composition in Table 1, show that castor oil is pure and comply with die standard specification of castor oil .The oil was found to possess much potential to produce dehydrated castor oil due to the presence of ricinoleic acid (84%) (Fig.
Ricinoleic acid has been shown to have antibacterial properties against gram positive bacteria (Novak et al., 1961) and the components of CNSL have also been shown to inhibit methicillin resistant Staphylococcus aureus (Kubo et al., 2003).
It consists of ~85-95% ricinoleic acid (12-hydroxy-9-cis-octadecenoic acid) which has one hydroxyl group per mole.
The presence of a large number of ricinoleic acid glycerides in the oil is the reason of good solubility of castor oil in alcohol and of a bad solubility in petroleum ether.
The major fatty acid component of castor oil is ricinoleic acid, which comprises 90% of the fatty acid profile.
Alkyd paints are based on alkyd resin precursors, which are polyesters incorporating unsaturated fatty acid chains such as oleic acid, linoleic acid, linolenic acid, and ricinoleic acid. In the drying process of a paint film, the solvent evaporates (physical drying), and then chemical reactions take place, resulting in the curing of the binder.