Method for efficiently preparing livestock and poultry cartilage collagen polypeptide
A collagen polypeptide and cartilage technology, applied in the biological field, can solve problems such as unsatisfactory extraction efficiency of collagen polypeptide in livestock and poultry cartilage, and achieve the effect of improving application value and extraction efficiency
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Embodiment 1
[0030] The method for efficiently preparing livestock and poultry cartilage collagen polypeptide described in this embodiment comprises the following steps:
[0031] (1) Get 1kg of the precipitate processed according to the aforementioned impurity removal and pretreatment steps, and set aside;
[0032] (2) Add 0.5mol / L pepsin solution (acetic acid pH 3.0) to the cartilage after the pretreatment according to the ratio of solid to liquid of 1:10 times, place it in a pressure extraction device, and control the enzymolysis temperature to At 4°C, the enzymatic hydrolysis treatment was carried out alternately under the control of -0.1MPa micro-negative pressure environment and normal pressure environment. After the solution was completed, centrifuge at 4°C and 12000rpm for 30 minutes, collect the supernatant, and add 20% sodium chloride solution for overnight salting out, then centrifuge at 4°C and 12000rpm to collect flocculent white precipitate;
[0033] (3) Dissolve the obtaine...
Embodiment 2
[0036] The method for efficiently preparing livestock and poultry cartilage collagen polypeptide described in this embodiment comprises the following steps:
[0037] (1) Get 1kg of the precipitate processed according to the aforementioned impurity removal and pretreatment steps, and set aside;
[0038] (2) Add 0.3mol / L pepsin solution (acetic acid pH 3.0) to the pretreated cartilage according to the ratio of solid to liquid of 1:10 times, place it in a pressure extraction device, and control the enzymolysis temperature to At 4°C, the enzymatic hydrolysis treatment was carried out alternately in a micro-negative pressure environment of -0.1MPa and a normal pressure environment. After the solution, centrifuge at 4°C and 12000rpm for 30 minutes, collect the supernatant, add 20% sodium chloride solution for overnight salting out, and then centrifuge at 4°C and 12000rpm to collect flocculent white precipitate;
[0039] (3) Dissolve the obtained precipitate in 0.5mol / L acetic acid...
Embodiment 3
[0042] The method for efficiently preparing livestock and poultry cartilage collagen polypeptide described in this embodiment comprises the following steps:
[0043] (1) Get 1kg of the precipitate processed according to the aforementioned impurity removal and pretreatment steps, and set aside;
[0044] (2) Add 0.8mol / L pepsin solution (acetic acid pH 3.0) to the pretreated cartilage according to the ratio of solid to liquid of 1:10 times, place it in a pressure extraction device, and control the enzymolysis temperature to At 4°C, the enzymatic hydrolysis treatment was carried out alternately under the control of -0.1MPa micro-negative pressure environment and normal pressure environment. After the solution was completed, centrifuge at 4°C and 12000rpm for 30 minutes, collect the supernatant, and add 20% sodium chloride solution for overnight salting out, then centrifuge at 4°C and 12000rpm to collect flocculent white precipitate;
[0045] (3) Dissolve the obtained precipitat...
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