| 摘要 |
A protein concentrate for addition to animal feedstuffs is prepared by the leaching of grass with alkali, precipitation with acid, and fermentation with Trichoderma viriide or Trichoderma hanzianum. The concentrate contains approx. 72% protein calculated on the dry matter. The protein concentrate is manufactured by extracting protein from the plants, precipitating the proteins with acid, and separating the precipitated proteins, which are then dried and the residue from the protein extraction process is acidified and the acidified residue fermented with cellulotic micro-organisms in the presence of inorganic nutrients, the bath being sparged with oxygen. When fermentation is completed the living mass of micro-organisms is separated from the fermentation bath and dried. The use of the protein concentrate in feedstuffs for various animals is described. |
