| 摘要 |
Chitin is extracted from the shells of exoskeletal animals such as crab, shrimp, crayfish, and lobster. bv a primarily physical process comprising the step of cutting the shells in a wet state to approximately uniform particles. The resultant mass is then diluted and mixed to form a pumpable slurry. The slurry is separated to remove most unwanted materials, after which the particle size of the concentrated chitinous residue is further reduced. The once-washed, finely cut chitinous slurry is again separated, resulting in a chitin end product. <IMAGE> |
