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Fisheries processing produces fish skin as a by-product. By using simple technology, the skin can be processed to produce high-protein snack foods, that the taste can be adjusted to the public tastes, such as chips. The economic value of these skin chips can be improved if they are packaged attractively and processed to a contemporary taste. The purpose of this study was to innovate technology in the utilization of fishery by-products to produce the salted egg fish skin chips and analyze its characteristics before and after storage. Fish skin used was tilapia fish ( Oreochromis niloticus ). The methods include the fish skin blanching using water at a temperature of 90°C for approximately 2 minutes, draining, and soaking in a 0.5% sodium bicarbonate solution at 21-23°C for 15 minutes, then salt 2% and garlic 2.5% (w/w) adding then deep frying with an oil temperature of 170-180°C for 75 seconds. Salted egg fish skin chips were packed in aluminum foil pouches and stored for 84 days. The parameters observed were yield, water content, ash content, protein content, fat content, and rancidity (TBA), physical tests (crispness, i.e., hardness and breaking force also aw), and microbiological analysis (total mold). The results showed that the yield of dried tilapia skin was 37.30%; water content increased during the storage and the same condition for ash content, protein content, fat content, and rancidity, but they did not change significantly. Likewise, crispness values were decreased, but aw values were increased during storage. While the total mold increased, but the value was still within safe limits. The salted egg chips from tilapia fish skin could still be developed to be accepted and safe for consumption by the consumers.

Conversion of fisheries processing by-product into salted-egg fish skin chips