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Chemical analysis of Citrullus lanatus seed oil obtained from Southern Nigeria

A B ST R A C T Nigeria is one of the countries of the world with a variety of oil seeds, therefore the potential of Nigeria leading Africa, and the world at large, in the area of seeds oil production was examined by evaluating the oil yield and physicochemical qualities of oil extracted from Citrullus lanatus from the southern region of the country. The lipid content of Citrullus lanatus seeds was found to be 57.26%. The iodine, saponification, acid, free fatty acid, peroxide, specific gravity, refractive index and pH, were analysed using standard procedures and values were found to be 114.94g I 2/100g, 220.19 mgKOH/g, 7.09 mgKOH/g, 4.512%, 20.00 meq/kg, 0.913, 1.35, and 4.45 respectively. The oil contains five main fatty acids: palmitic, stearic, oleic, linoleic are linolenic acids, but the most abundant fatty acid is linoleic with a value of 64.15% which is used industrially as a drying agent in gloss paint. Due to their high oil yield and abundance, oils from Citrullus lanatus seeds may be considered as Nigeria potential asset for soap production and other industrial applications.