Abstract:
This study was intended to identify chemical properties and contents of amino acids of four inferior
sea fishes in Madura, Indonesia. The studied fishes were ‘bibisan’ (Apogon albimaculosus), ‘baji-baji’
(Platycephalidae cymbacephalus), ‘lidah’ (Cynoglossus lingua) and ‘sebelah’ (Psettodes erumei),The contents
of the nutritive substances in the fish products (proteins, ash, and fats) were determined. This study confirmed
that in terms of both quantity and quality of the fishes as a significant source of essential amino acids and lysine
present in fishes could supplement the corresponding deficiency in plant proteins. The most abundant amino
acids in all the fishes were glutamic acid that roles as flavor-enhancing compounds which provide an ‘umami’
(savory) taste in food.
