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Three forages (alfalfa, timothy, reed canary grass) and two cereal residues (barley straw, com stover) were chopped at 3 to 5 mm length, pretreated with ammonia, and hydrolyzed in the presence of a commercial enzyme mixture. Between 42 and 51% of total biomass was solubilized. The liquid hydrolyzate contained soluble sugars composed on average of 49% glucose, 25% xylose, and 26% other sugars. The non-hydrolyzed residue had a low fibre content, indicating a potentially good feed energy value, but its protein value was low because a high proportion of nitrogen was bound to the fibre.
P. Savoie, D. de Halleux. K. Belkaccmi. G. Turcotte. P. Nadeau and J. Chiquette 1998. ENZYMATIC HYDROLYSIS OF FORAGE AND STRAW PRETREATED WITH AMMONIA. Canadian Agricultural Engineering 40(3):207-212.
Canadian Society for Bioengineering