How to improve bio-oil production from Egyptian castor seeds?
Also, Egyptian castor is one of the most important crops for oil production compared with other commonly used oil crops. The main aim of this study is to enhance the production of bio-oil from Egyptian castor seeds by using microwave and ultrasonic as pre-treatments.
How is castor oil extracted?
Castor oil seed contains about 30%–50% oil ( m/m ). 74, 75 Castor oil can be extracted from castor beans by either mechanical pressing, solvent extraction, or a combination of pressing and extraction. 74 After harvesting, the seeds are allowed to dry so that the seed hull will split open, releasing the seed inside.
How to extract bio-oil from castor seeds?
The bio-oil was extracted from the Egyptian castor seeds by a screw press without pre-treatments and pre-treatments were accomplished using Microwave and ultrasonic pretreatments to enhance the production of bio-oil from castor seeds. The schematic diagram in Fig. 1 shows the sequence of oil extraction by screw press from castor seeds.
Does extraction screw speed affect oil extraction yield from castor seeds?
To achieve that, the effects of extraction screw speed (30, 60 and 90 rpm) and temperature (120, 140, 160 and 200 °C) on oil extraction yield from castor seeds, extraction energy and extraction time were studied. The results indicate that, the highest value of decreasing of oil extraction yield