Optimization of Process Parameters for Castor Oil Production.

Bean conditions, processing temperature and pressing time, solvent type and solvent-solid ratio were studied to optimize oil yield from castor beans. A maximum yield of 50.16% was obtained in this study. Moisture content of 3-3.6% was found compared to the range of 5-7% reported in literature. Isopropanol, hexane and their 50:50 by volume mixture were used as solvents for oil extraction. The optimum conditions were found to be isopropanol, temperature of 108°C, pressing time of 60 minutes and solvent to liquid ratio of 6:1. [ABSTRACT FROM AUTHOR]