Extraction of gelatin Using sodium hydroxide, in conjunction with the SIM app where acid concentration 0.2 0.4 0.6 0.8 is the same, and 1.0 percent is 3 hours and sodium hydroxide to remove minerals from the fish flakes. Sobbing app acids, collagen occurs, the new structure suitable for extraction. When the time to pour the slurry, leaving but a Flake the fish and then wash them 2-3 times, making the fish looks like a table extracted with hot water at 4 degrees Celsius is 1.5 hours at 70 laeokrong water water to evaporation temperature at 55 degrees Celsius, dry and then put it to grind them into powder.
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