| 摘要 |
<p>The process for separating or recovering proteins and fats from substances of animal origin, organic substances or refluent from working organic substances includes the step of: treating the substance with alkaline bisulfite, which reduces its pH value and partially saponifies the fats; adding to the so treated substance a concentrated hydroxy acid which disagregates the lipidic and proteic fractions, carbonizes the present impurities, precipitates in an irreversible way the suspended proteins and causes the breaking of the basic soap, thus re-forming fatty acid and partially causing an acid saponification having strong emulsifying properties; recovering with known physic techniques the most precipitated proteins and not-emulsified fats, evidentiating a watery fraction comprising further suspended proteins and if necessary, according to the starting substance, an emulsified lipidic fraction which is then separated with known physic techniques from the watery fraction; causing a pH inversion of the watery fraction thus coagulating the suspended proteins, and recovering mechanically the coagulated proteins and precipitating from the obtained watery fraction the sulfuric ions provided in it.</p> |
