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This study sought to characterize the phyto-oil extracted from an unexploited seed of African star apple ( Udara ) using soxhlet extraction method, normal hexane was used as the solvent at 67 °C for 4 h. The percentage oil yield was 23.8%. The extracted oil was liquid at room temperature, pleasant sweet smell with honey-like colour. The oil physicochemical properties such as acid value, peroxide value and saponification value were 17.41 ± 0.43 mg/KOH/g, 57.74 ± 2.77 meq/kg −1  and 236.341 ± 6.80 mg/KOH/g, respectively. Also, free fatty acid of 8.75% and iodine value of 29 ± 0.16 mg/100g were obtained. The identified fatty acids present included n-hexadecanoic acid (7.55%), 13-hexyloxacyctri-dec-10-en-2-one (1.19%), oleic acids (30.21%), octadecanoic acid (5.28%), hexadecanoic acid (2.37%), undecylenic acid (40.33%), 9-octadecanal (7.09%), and 9, 17-octadecadienal (5.98%). The properties of oil extracted revealed that the seed is a good source of oil which could be employed for industrial purposes.

Characterization and fatty acid profile analysis of oil extracted from unexploited seed of African star apple (Udara)