NOVELTY - Corn fermentation comprises: providing a corn material comprising protein, fiber, an oil rich component and starch; producing a slurry from the corn material, where the slurry comprises water and the protein, fiber, oil rich component and starch from the corn material; fermenting the slurry; and after the fermentation is finished, obtaining at least an oil rich fraction and oil-lean fraction from the slurry.    USE - The method is useful in corn fermentation (claimed) to produce bio-diesel e.g. ethanol and corm germ meal.    ADVANTAGE - The method removes the oil-rich fraction either during or after fermentation instead of before fermentation. The germ can remain physical intact during the fermentation process with little or no chemical degradation to the germ oil. The method provides: other value added co-products e.g. high fiber and high protein which is low oil contents and has different nutrition needs which has higher feed efficiency for different livestock; and better co-products in larger pieces, which can be recovered more easily. The method reduces further energy and capital investment. The spent stream may be combined with fuel ethanol fermentation, which not only eliminates potential negative impacts on the environment but also saves water and utilizes the starch typically found in the germ fraction of alternative processes. The tail-end degerming process produces a high yield of oil from the germ fractions, cleaner germ, valuable co-products with enriched protein, fiber, oil in different fractions which can be easily tailored to produce feedstuffs with higher feed efficiency for different livestock which has different nutrition needs, and at the same time have a similar or higher ethanol yield and fermentation time as conventional dry-grind process. Microbial contamination is not an issue in the degerming ethanol process, as compared to non-cooking or low heat treatment conventional processes. The tail-end degerming process is easily adapted by industry and has less energy costs.    DETAILED DESCRIPTION - AN INDEPENDENT CLAIMS are also included for:    (1) a fermentation method (I) comprising: providing a corn material comprising protein, fiber, an oil-rich component and starch; producing a slurry from the corn material, where the slurry comprises water and the corn material; fermenting and separating the slurry, where the separating is performed concurrently with the fermenting; and obtaining at least an oil-rich fraction from the separation;    (2) an intact oil rich fraction obtained from the above methods;    (3) a germ oil and germ meal obtained from the above methods; and    (4) a fiber rich fraction, protein rich fraction or germ fraction obtained from the above methods.