Chapter-1 Introduction Bran is a outer most layer of the cereal grain and consists of the nucellar epidermis, seed coat, pericarp and aleurone. The aleurone layer consists of heavy walled, cube shaped cells which are composed primarily of cellulose. It is low in starch and high in minerals, fat, and protein. However, due to its thick cellulosic walls, these nutrients are unavailable for digestion in monogastric species. Bran from a wide array of cereal grains have been shown to have an…