Produksi dan Karakterisasi Hidrolisat Jeroan Ikan Kakap Putih (Lates calcarifer)

Abstract

Viscera of Barramudi are low quality raw materials or waste, which might environmental and health problems if it’s not utilized. Barramudi viscera have high protein value (31.20%±0.33 bk) and fat (61.44%±1.22 bk). The fat content effects the process hydrolysis, so it requires process of disposal fat (deffating). Process deffating can reduce fat content from 61.44%±1.22 (bk) into 58.71%±0.65 (bk). Hydrolysis barramudi viscera using enzyme papain with activity 30 usp/mL. Optimal concentration of papain used for hydrolisis of barramudi viscera protein is 0.15% with hydrolisis time for 4 hours, temperature 55°C and pH 8. Characteristic products hydrolysates barramudi viscera (Lates calcarifer) has the water content (10.82%±0.84); ash content (7.30%±0.03); protein content (62.85%±0.72); fat content (0.84%±0.28); and carbohydrate (18.19%±1.32); protein digestibility (87.03%). Hydrolysates protein viscera barramundi has 15 content of amino acid, the highest and lowest amino acid, respectively, glutamic acid (10.75%) and histidine (1.38%). Hidrolisat protein can be applied as a source of protein in fish feed.