| 摘要 |
The present invention relates to the process of producing gelatin from fish. More particularly the invention relates to the method of producing gelatin from skin, bones, and scales. The present invention provides an economically viable process of producing high quality gelatin. In step one, cleaning the fish at low temperature and separating the boneless meat, swim bladder, cartilage and other impurities from skin, bones, and scales of the fish. In step two, soaking the mixture of skin, bones, scales, of step one with protease enzyme while maintaining low temperature for about up to 4 hours. In step three, washing the mixture of step two with water at low temperature. In step four, soaking the mixture of step three with alkali for at-Ieast 2 hours while maintaining low temperature. In step five, washing the mixture of step four with water at low temperature. In step six, soaking the mixture of step five, with acid for at least 2 hours while maintaining low temperature. In step seven, washing the mixture of step six with water at low temperature. In step eight, extracting gelatin from the mixture of step seven at about neutral pH at temperature of about 40°C to 70°C. Optionally, in the process step one, only boneless meat and other impurities are separated from skin, bones, scales, swim bladder and cartilage and in the process step two thereof mixture of skin, bones,scales, swim bladder and cartilage of the fish is soaked with protease enzyme while maintaining low temperature. A method of producing gelatin uses a complex mixture of skin, bones, scales of the topical fishes, and / or Surimi Processed Material. Such Surimi Processed Material may also contain swim bladder and cartilage of the fish. |
