corn germ oil refining machine in morocco

                                               
                                               
                                               
                                               
                                               
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  • What is corn germ oil?
  • Corn germ oil is a by-product of the corn oil milling process. Most corn that is harvested is used as feed but the proportion of the corn that is milled is increasing because of bioethanol production. During the wet milling process, the germ is isolated from the starch using cyclone separators, washed, and dried.
  • How is corn germ isolated from starch?
  • During the wet milling process, the germ is isolated from the starch using cyclone separators, washed, and dried. The dried germ contains about 50% oil, in which the oil constitutes about 85% of the total amount of oil present in the corn.
  • How is corn germ oil extracted?
  • In most industries, corn germ oil is extracted by pre-pressing and solvent to improve the yield of corn germ oil . Recent study demonstrated that the corn germ oil extracted by supercritical CO 2 could improve the antioxidant capacity of oil without lowering the profile of fatty acids .
  • Does corn germ oil contain linoleic acid?
  • Therefore, commercial corn oil is mostly extracted from corn germ and is commonly known as corn germ oil. Corn germ oil is one of the nutritional vegetable oils with a high content of unsaturated fatty acids (¡Ý 80%), especially linoleic acid (¡Ý 50%) (Table 4), total trans fatty acid content was <0.3% [124, 125].
  • How is corn oil produced?
  • The dried germ contains about 50% oil, in which the oil constitutes about 85% of the total amount of oil present in the corn. The oil is produced by first expelling the germ and then extracting the expeller cake with n -hexane. Global annual corn production is 700 million tonnes but corn oil production is only 400 000 tonnes.
  • How many tocopherols are in corn germ oil?
  • Most of the tocopherols are found in corn germ (about 90%), followed by pericarp (c. 5%) and endosperm (c. 5%) (Hall III and Zhao, 2011). According to Moreau and Hicks (2006), the content of tocopherols is approximately 28 times higher in corn germ oil than in corn fiber oil.