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ABSTRACT <br /> Treating grass, leaves or vegetable materials with alkaline hydrogen <br /> peroxide in a modified extruder should increase in situ ruminal digesti- <br /> bility of the waste to nearly 90% (dry matter basis). Extruder treatment <br /> of waste reduced by ten-fold the amount of hydrogen peroxide required to <br /> obtain maximal increases in waste digestibility compared to the wet-slurry <br /> treatment process used in previous studies. Use of the extruder also al- <br /> lowed effective treatment of waste with alkaline hydrogen peroxide at high <br /> solids levels, eliminating the liquid waste stream and improving recovery <br /> of carbohydrate products. These assumptions are based on work that has <br /> been done in an extruder using similar biomass materials such as corn, <br /> soybeans and oat hull as well as shells of grains that contain similar <br /> properties. A patent has been filed on this previous work and is now in <br /> the pending stage. <br /> (1, <br />