A process for fractionating the whole wheat kernel into its bran, germ and endosperm components includes the steps of tempering the wheat kernel in water, pin milling the wheat kernel, sifting the milled kernal to separate the germ and bran components from the endosperm, hydrating and agitating the endosperm...http://www.google.de/patents/US3979375?utm_source=gb-gplus-sharePatent US3979375 - Fractionation of the whole wheat kernel by pin milling