Preparation method of food-grade low-salt-content sea fish oligopeptide powder
A marine fish oligopeptide, food-grade technology, applied in the field of preparation of marine fish active peptides, can solve the problems of high cost, general desalination effect, high energy consumption, etc., to improve quality, wide enzymatic hydrolysis sites, and reduce pressure Effect
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Embodiment 1
[0020] Food-grade marine low-fat fishmeal is accurately weighed by a measuring scale, mixed with pure water in a pre-desalination mixing tank according to the mass ratio of material to water at 1:5, set the temperature at 25°C, stirred at a speed of 60r / min, washed with water for 10min, and passed through 100 mesh The pre-desalted fish meal is obtained by pressure filtration with a diaphragm filter press, and the desalination rate is 86.2%. The pre-desalted fish meal is transported to the enzymatic hydrolysis pre-mixing tank through a screw conveyor, and pure water is injected according to the mass ratio of material to water at 1:8, and stirred at 60r / min After mixing, pump it into the colloid mill through the screw pump, use the colloid mill to grind the pre-desalted fish meal particles to 60 mesh, and then transport it to the enzymolysis tank through the screw pump to prepare for enzymolysis; control the temperature at 50°C and pH 9.0, according to the base Add Novozymes alka...
Embodiment 2
[0023] Food-grade marine low-fat fish meal is accurately weighed by a measuring scale, mixed with pure water in a pre-desalination mixing tank according to the mass ratio of material to water 1:6, set the temperature at 30°C, and the stirring speed is 60r / min, washed with water for 20min, and then passed through 100 mesh Pre-desalted fish meal is obtained by pressure filtration with a diaphragm filter press, and the desalination rate is 89.8%; the pre-desalted fish meal is transported to the enzymatic hydrolysis pre-mixing tank through a screw conveyor, and pure water is injected according to the mass ratio of material to water at 1:10, and stirred at 60r / min After mixing, it is pumped into the colloid mill through the screw pump, and the pre-desalted fish meal particles are ground and pulverized to 80 mesh by the colloid mill, and then transported to the enzymolysis tank through the screw pump to prepare for enzymolysis; Add 0.8L of Novozymes neutral protease Neutrase to 0.8% ...
Embodiment 3
[0026]Food-grade marine low-fat fishmeal is accurately weighed by a measuring scale, mixed with pure water in a pre-desalination mixing tank according to the mass ratio of material to water 1:10, set the temperature at 50°C, stirring at a speed of 60r / min, washed with water for 30min, and then passed through 100 mesh The pre-desalted fish meal is obtained by pressure filtration with a diaphragm filter press, and the desalination rate is 94.8%; the pre-desalted fish meal is transported to the enzymatic hydrolysis pre-mixing tank through a screw conveyor, and pure water is injected according to the mass ratio of material and water at 1:6, and stirred at 60r / min After mixing, it is pumped into the colloid mill through the screw pump, and the pre-desalted fish meal particles are ground and pulverized to 100 mesh by the colloid mill, and then transported to the enzymolysis tank through the screw pump to prepare for enzymolysis; the temperature is controlled at 55°C and pH8.5, accordi...
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