This research project material is available: DESIGN AND FABRICATION OF A MECHANICAL DRYER FOR DRYING OF SPENT GRAIN.
Until now, the main application of BSG has been as an animal feed (mainly for cattle), due to its high content of protein and fibre. As an animal feed, BSG can be employed either as a wet residue, shortly after separation from the wort at lautering, or as a dried material (O¨ ztu¨rk et al., 2002; Townsley, 1979). According to Huige (1994) BSG is an excellent feed ingredient for ruminants since it can be combined with inexpensive nitrogen sources, such as urea, to provide all the essential amino acids. In addition to its high nutritional value, BSG is reported to promote increased milk production without affecting animal fertility (Belibasakis and Tsirgogianni, 1996; Reinold, 1997; Sawadogo et al., 1989). When BSG was incorporated into the diet of cows, milk yield, milk total solid content and milk fat yield were increased. On the other hand, blood plasma concentrations of glucose, total protein, albumin, urea, triglycerides, cholesterol, phospholipids, sodium, potassium, calcium, phosphorus and magnesium were not affected (Belibasakis and Tsirgogianni, 1996).
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