Characteristics and composition of Parkia biglobbossa and Jatropha curcas oils and cakes

• Published in: Bioresource technology 2004-05, Vol.92 (3), p.307-310
• Main Author: Akintayo, E.T.
• Format: Article
• Language: English
• Subjects: Biological and medical sciences; chemical constituents of plants; Composition and characteristics; Fabaceae - chemistry; Fundamental and applied biological sciences. Psychology; Jatropha - chemistry; Jatropha curcas; Lipids - analysis; Nigeria; oilseed cakes; Parkia; Parkia biglobbossa; Parkia biglobosa; physicochemical properties; Phytosterols - analysis; Seed oil; seed oils; Seeds - chemistry
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/S0960-8524(03)00197-4

Parkia biglobbossa (PKBS) and Jatropha curcas (JTC) seeds were analysed for their proximate composition. The seeds oils were analysed for fatty acid, lipid classes, sterols and physicochemical characteristics. Proximate analysis revealed that the percentage crude protein, crude fat and moisture in PKBS were 32.40%, 26.525% and 10.18% respectively and 24.60%, 47.25% and 5.54% in JTC. Campesterol, stigmasterol, β-sitosterol, Δ 5-avenasterol and Δ 7-stigmasterol were identified in the seed oils, but β-sitosterol was most abundant, constituting 71.9% in JTC and 39.5% in PKBS. JTC oil had 72.7% unsaturated fatty acids with oleic acid predominating, while PKBS had 62% unsaturated fatty acids with linoleic acid being the most abundant. Results of lipid classes showed triglyceride as the dominant lipid species in the seed oils. Physicochemical analysis of the seed oils showed that they could be classified as semi drying oils and that they could be found applicable in alkyd resin and soap manufacture.