In the process of corn oil extraction, the germ passes through conditioning operations (heating, humidification and extrusion), to then be submitted to oil extraction by expeller (pre-pressing) and solvent extraction, with hexane being the solvent chosen by processors ( Moreau, 2005 ).
Is corn germ hard to process?
But because corn germ can be notoriously tough to process, it requires the right extraction equipment to press oil efficiently to get optimal returns. Here¡¯s what you need to know about processing corn germ to capitalize on the commercial value of its oil. Whole corn kernels only contain a small amount of fat, around 5% by weight.
What is corn germ oil?
Corn germ contains a lot of nutrients such as protein, fat and vitamins. The protein content is about 15%, fat content is about 45% (of which 85% are unsaturated fatty acids based on oleic acid and linoleic acid), otherwise, about 8 % of dietary fiber. Corn germ oil is the oil extracted from corn germ at low temperature.
Can absolute isopropanol be used in corn germ-bran oil extraction?
The absolute isopropanol showed excellent performance as a solvent in corn germ-bran oil extraction, with yields above 75% from the temperature of 50 °C, in single stage batch extraction.