| 摘要 |
The invention relates to forage production and can be used by factories for processing animal product refused screenings. The inventive method for producing a food supplement from a keratin-containing raw material consists in heating, grinding, sterilising and drying an initial raw material whose moisture ranges from 35 to 95 %, in subsequently compacting and heating in a mixer-grinder channel with a continuous feeding at a pressure of 0.4-10.0 mPa and the raw material temperature ranging from 60 to 120 °C followed by a hydrothermal processing thereof with a temperature of 150-250 °C for 5-300 seconds associated with simultaneous fine grinding and abrasion. Afterwards, the thus processed raw material is transferred to an atmospheric pressure area. The inventive method makes it possible to simplify a production process, reduce costs and improve the quality of the protein supplement. |
