Nutritional Characteristics of Lempuk (Gobiopterus sp.) Endemic Fish, at Ranu Grati Lake, Pasuruan, Indonesia

Exploration of natural resources from the Lake of Ranu Grati was carried out on Lempuk fish (Gobiepterus sp). This study aimed to investigate the nutritional value of Lempuk fish (Gobiepterus sp.) consisting of proximate content, amino acids, and fatty acids. The fish sample was collected in July 2021. Standard proxymate analysis was used for protein, fat, moisture, and ash. The results showed that Lempuk fish had relatively similar proximate content to other freshwater fish and seawater fish. The proximate content of the fish is protein (14 %), lipid (7.08 %), moisture (79.27%), and dry base ash (10.67%). Glutamic acid in Lempuk fish is high. It is a medium-fat fish. Fatty acid results showed that Lempuk fish contains a large amount of unsaturated fatty acids. Hence, it is suitable for food and also reduces human cardiovascular diseases. This study concludes that the Lempuk fish (Gobiepterus sp.) has good nutritional value and is ideal for human consumption.