Effect of Drying Temperatures on Physicochemical Properties and Oil Yield of African Star Apple (Chrysophyllum alibidum) Seeds

Ajala A.S. & Adeleke S.A.

Abstract

African Star Apple seeds (Chrysophyllum albidum) were subjected to sun-drying and tunnel drying at 50 0C, 600C, 700C and 800C. The oil in these seeds were extracted and subjected to physical and chemical analysis. The results showed that increase in drying temperature of the seed decreased percentage oil yield, saponification value, free fatty acid, acid value, and iodine value. Boiling and flash point increases with increasing the drying temperature of the seeds. The properties evaluated indicated that the oil can have long shelf life and resistance to rancidity.