Abstract:
Appropriate formulae for the production of emulsion sausage from striped catfish and tilapia were studied. The type of fats which used in the process were lard and striped catfish fat. Formulaee for the tilapia sausage were studied by varying the level of mixed spices, fat and ice at 2.0, 2.5 and 3.0%; 10, 20 and 30%; 30, 40 and 50% of meat weight respectively. Formula for the striped catfish sausage were studied by varying the level of mixed spices, fat and ice at 2.5, 3.0 and 3.5%; 10, 20 and 30%; 40, 50 and 60% of meat weight respectively. Criteria used to select the most appropriate formulae were cooking loss, cutting force, and sensory evaluaton. The raw material cost for each formulae was estimated. Storage stability of the elected sample was done at atmospheric pressure and under vacuum in HDPE bags at 4℃. The results showed that the best formulae for tilapia-lard sausage contained 2.5% of mixed spices and 30:50% of meat weight lard: ice, while the formulae that used fish fat contained 3.0% of mixed spices and 10:50% of meat weight fat:ice. The suitable formulae of striped catfish-lard sausage contained 3.0% of mixed spices and 10:50% of meat weight lard : ice, while the formulae that used fish fat contained 3.5% of mixed spices and 10:40% of meat weight fat:ice. The chemical composition was fat 1.48-9.31% and protein 19.97-20.64%. The raw material costs of tilapia-lard sausage and catfish-lard or fish fat sausage were lower than red meat sausages. Storage life of catfish-lard sausage was 18 days, while that of catfish-fish fat sample was 5 days, at 4℃ either at mospheric or under vacuum pressure.