Castor Oil: Ricinoleic
acid is a major component of castor oil and makes up about 90 per cent of it.
[USPRwire, Fri Sep 28 2018] Castor oil is one of the most multipurpose plant oils, obtained by pressing the seed of the castor oil plant (Ricinus communis).It is well known source of a monounsaturated, ricinoleic
and 18-carbon fatty acid.
The oil extracted from the seeds has 90% ricinoleic
acid, which promotes high economic value as lubricant for high-speed engines, being widely used in aviation, whereas in medicine it has been used for its purgative qualities (Silva et al., 2008).
acid was present in two samples of J.
The results of lipase production with castor oil may be attributed to the anti-nutritional effect of ricinoleic
acid (88.3% of the total fatty acid profile), an unsaturated omega-9 fatty acid called 12-hydroxy-9-cis-octadecenoic acid.
Castor oil contained about 90% ricinoleic
acid ([C.sub.18][H.sub.34][O.sub.3]) which induces and promotes lipase production .
Castor seeds contain about 50-70% of an oil, a triglyceride whose fatty acid chains are composed of almost 90% ricinoleic
acid, which is remarkable consistency.
 revealed that ricinoleic
acid acyl-CoA does not dominate during endosperm oil formation.
acid, the active metabolite of castor oil, causes irritation and inflammation of the intestinal mucosa which leads to increased prostaglandin release, enhanced peristalsis, and reduced reabsorption of sodium ion, chloride ion, and water from the gut which give rise to diarrhea .
In ethanol extract for example the amount of eieosenoic acid and ricinoleic
acid is greater than that of these acids in the acetone extract while the percentage yields of palmitic, palmitoleic, stearic, oleic, linoleic, and linolenic acids are greater in acetone extracts than in the ethanol extracts (Table 6).
Sulphonated castor oil is used for dyeing and preservation of leather, production of Ricinoleic
acid (polyamide resin) and in biodiesel studies (Anonymous, 2009; Ombrello, 2009).