Corn (Zea mays L.) is one of the most relevant and cultivated cereals. During the processing of corn, especially in obtaining edible oil, large quantities of by-products are generated, called corn germ oil processing by-products. In this sense, this chapter provides…
How to extract oil from corn germ during flour processing?
This work aimed the recovery of oil and protein fractions from corn germ (CG) generated as a by-product during flour processing. Several oil extraction techniques were investigated: hexane at room temperature, hexane at 45 °C, supercritical carbon dioxide (Sc-CO 2) and Soxhlet with hexane and ethanol.
What is corn germ oil?
Most of the commercial corn oil is extracted from the germ and this is commonly known as “corn germ oil.” The germ from wet-milling operations (see Chapter 18) is recovered with up to 50% oil, which must be quickly processed because of its low microbiological and chemical stability.
Why are different compositions verified for corn germ oil processing by-products?
Different compositions are verified for corn germ oil processing by-products, mainly due to the diversity of extraction processes to which the corn is submitted.