Abstract
An improved aqueous extraction method has been established for extraction of oil from corn germs. This method primarily included steam explosion pretreatment and aqueous ethanol extraction. Process variables such as steam pressure, resident time, particle size and ethanol concentration were investigated. The highest yield of 93.74% was obtained when ground steam-exploded corn germ (1.3MPa, 30s, 30-35μm particle size) was treated with 30% (v/v) aqueous ethanol for 2h, at 60°C and pH9.0. The residual oil content in water and sediment phase decreased dramatically to 4% and 3%, respectively. The enhancement mechanism of the process induced by steam explosion was analyzed by confocal laser scanning microscope (CLSM). The quality of extracted crude oil was also investigated. The results showed that the quality of extracted oil was superior to commercial oils.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
