Use of innovative technologies in the production of gelatine from animal tissues

A process for producing gelatin from a fish skin, the process comprising:

• (a) drying the fish skin at a temperature of between 75° C. to 85° C. until a moisture content of the dried fish skin is less than a 15% by weight;
• (b) cleaning the dried fish skin with clean water;
• (c) degreasing the cleaned fish skin with fish ether for a period of time of seven hours to nine hours such that a fat content of the degreased fish skin is less than 1% by weight;
• (d) removing impurities from the degreased fish skin by soaking and stirring the degreased fish skin in a sodium chloride solution (NaCl) of 1% concentration for a period of time of one hour;
• (e) cleaning the impurity-removed fish skin with deionized water and the NaCl;
• (f) ultra-high pressure treating the cleaned impurity-removed cleaned fish skin at a rate of five milliliters per gram of fish skin and adding deionized water to the fish skin and then placing the fish skin under a pressure of 380 Mpa to 420 MPa for a period of time of 20 minutes to 25 minutes to produce a fish skin slurry;
• (g) collagen gel extracting by beating the fish skin of step (f) and adding deionized water to the fish skin slurry at a ratio of ten milliliters of deionized water per one gram of fish skin at a temperature of 58° C. to 62° C. and at a pH of 6.0 for four hours;
• (h) centrifuging the extracted collagen gel of step (g) at 4000 revolutions per minute for thirty minutes;
• (i) inflating the extracted collagen gel by exposing raw material to an ohmic system, an ultrasound system, a hydrostatic pressure system, a homogenization system, a microwave system, and combinations thereof;
• and
• (j) drying a supernatant form the centrifuged extracted collagen gel of step (h) at 50° C. to 55° C. until a moisture content of the supernatant is less than 14% by weight so as to obtain the produced gelatin.