| 摘要 |
<p>Disclosed is a method of washing a grain-based substrate, such as a spent grain germ. The grain-based substrate is contacted with steam and maintained in contact with steam for a time and at a pressure sufficient to liberate at least a portion of one odor component present in the substrate. Subsequently, at least a portion of the steam and at least some of the liberated odor component is separated from the balance of the substrate, thereby leaving a washed substrate. An additive, such as a soap or detergent, may be used in connection with the washing step. The grain-based substrate may be used in connection with an animal litter. In one embodiment, a litter is prepared from distiller's dried grain. Surprisingly, washing of the dried grains in accordance with the preferred teachings reduces the odor of the distiller's dried grains and yields a litter with excellent clumping properties.</p> |
