• corn germ oil processing – edible oil refining in Ghana
  • corn germ oil processing – edible oil refining in Ghana
  • corn germ oil processing – edible oil refining in Ghana
  • corn germ oil processing – edible oil refining in Ghana
  • 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.
  • How is kernel oil determined?
  • The kernel oil content is determined mainly by the percentage of oil in the germ and mainly by the ratio that the germ occupies in the caryopsis. Most of the commercial corn oil is extracted from the germ and this is commonly known as “corn germ oil.”
  • How to extract oil from corn germ without hexane?
  • The aqueous enzymatic method was developed to extract oil from corn germ without hexane or other organic solvents. When using corn germ samples from wet-milling operations, yields ranging from 80% to 90% corn oil were obtained using commercial cellulose, whereas in the absence of enzymes, oil yields were only between 27% and 37%.
  • How is corn oil extracted?
  • For extraction of corn oil, compressed carbon dioxide is fed in a SFE reactor, which contains the flaked germ, with temperature close to 50°C and pressure between 351 and 562 kg/cm 2. After depressurizing the system, the oil is collected in a reservoir.
  • How is corn oil refined?
  • The resulting crude oil is further refined with the consecutive steps of degumming, neutralization, bleaching, winterization, and deodorization and refined oils directly used or alternatively processed through hydrogenation, fractionation, and interesterification. Corn oil is slightly yellowish, with a mild and characteristic odor and taste.
  • Can corn oil be refined without degumming?
  • Corn oil can be directly refined without prior degumming. However, phospholipids must be withdrawn in later stages such as the neutralization step where they are removed with the saponified fatty acids or soap.