Chemical Composition of Fats and Oils

15-55 % unsaturated fatty acids 20 - 65 % rosin acids 5-30 % unsaponifiables 

Vemonia oil, is a triglyceride of vernolic acid, an epoxy oleic acid. Vernonia oil is extracted from the seeds of Vemortia galamensis (or ironweed), a plant native to Eastern Africa. Vernonia seed contains atx ut 40 to 42% oil of which 73 to 80% is vernolic acid. 

Vernonia oil has been discussed as natural alternative to epoxidized soya bean oil or epoxidized linseed oil for applications such as reactive diluent for low VOC alkyd paints. 

Jojoba oil is similar to, and miscible with, sebum, which is secreted by human sebaceous glands to lubricate and protect skin and hair. Obtained by cold pressing, its peculiar chemical properties make it the only vegetable oil in nature having the same characteristics as sperm oil. 

Sperm oil occurs in the blubber and in the head cavities of the sperm whale (this cavity helps the whale keep part of his head above water to breathe). The oil contains a solid fraction (spermaceti, cetin, cetylpalmitate) which can be cristallised.The liquid fraction mainly contains oleyloleate and higher mono-unsaturated fatty acid monesters of unsaturated fatty alcohol. 

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