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.
Can oil and protein extracts be recovered from corn germ?
Oil and proteins were successfully recovered from corn germ by a biorefinery scheme. Oil extraction yield and TPC of oils were influenced by the polarity of solvents. The protein content of recovered extracts ranged from 20 to 48%. The functionality of protein extracts depended on the defatting pretreatment.
What is corn germ oil processing by-products?
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…
What is corn germ used for?
Corn germ was usually firstly extracted oil and the defat germ (corn germ meal) was also considered a good ingredient for all livestock species [ 75 ]. It has good palatability, rich in digestible amino acids and hemicellulose, and can be used as protein feed for monogastric animals, as well as protein and energy feed for ruminants [ 76 ].