Silk degumming method
A silk degumming and silk technology, applied in the field of silk degumming, can solve problems such as unsatisfactory effect of silk enzyme degumming and degumming, achieve good degumming effect, and ensure the effect of not being damaged
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Embodiment 1
[0014] This silk degumming method of the present embodiment comprises the following steps:
[0015] A. Inject water into the training tank, put in silk, heat to 98°C, and keep warm for 20 minutes;
[0016] B. After adjusting the water temperature to 95°C, add 1.2g / L soda ash and keep it warm for 5 minutes;
[0017] C. Lower the water temperature to 40°C, add 2709 alkaline protease 2g / L, and use 28KHz ultrasonic stirring to hydrolyze for 40min under the condition of pH 9.8;
[0018] D. Wash with water at 60°C for 30 minutes, then wash with cold water.
[0019] The activity of 2709 alkaline protease in this example is 100,000 u / g.
Embodiment 2
[0021] This silk degumming method of the present embodiment comprises the following steps:
[0022] A. Inject water into the training tank, put in silk, heat to 99°C, and keep warm for 15 minutes;
[0023] B. After adjusting the water temperature to 96°C, add 1g / L soda ash and keep it warm for 8 minutes;
[0024] C. Lower the water temperature to 43°C, add 2709 alkaline protease 1.2g / L, and use 26KHz ultrasonic stirring to hydrolyze for 50min under the condition of pH 9.6;
[0025] D. Wash in water at 65°C for 20 minutes, then wash in cold water.
[0026] The activity of 2709 alkaline protease in this example is 150,000 u / g.
Embodiment 3
[0028] This silk degumming method of the present embodiment comprises the following steps:
[0029] A. Inject water into the training tank, put in silk, heat to 100°C, and keep warm for 10 minutes;
[0030] B. After adjusting the water temperature to 97°C, add 0.8g / L soda ash and keep it warm for 10 minutes;
[0031] C. Lower the water temperature to 45°C, add 1g / L 2709 alkaline protease, and use 24KHz ultrasonic stirring to hydrolyze for 60min under the condition of pH 9.5;
[0032] D. Wash in water at 70°C for 15 minutes, then wash in cold water.
[0033] The activity of 2709 alkaline protease in this example is 200,000 u / g.
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