Preparation method for tussah silk glutin powder

Abstract

The invention provides a preparation method for tussah silk glutin powder. The preparation method comprises the followings steps: firstly, based on slightly-soluble sericin liquor as a raw material, hydrolyzing the slightly-soluble sericin liquor by a double-enzyme combination process of neutral protease and trypsin; then, extracting and reccovering sericin by adopting an ultrafiltration membrane assembly and a process method, and decolorizing sericin hydrolysate by using a H2O2 decoloration process; and finally, concentrating the ericin hydrolysate by adopting a double-effect film-falling evaporating dish, and drying by adopting a centrifugal spray dryer to obtain light-yellow soluble glutin powder.

Description

technical field

[0001] The invention relates to a method for producing tussah sericin protein powder, in particular, the invention relates to a tussah sericin protein powder for preparing cosmetic mask materials and biomedical materials. Background technique

[0002] Tussah silk is a natural wild protein fiber, which is composed of about 83% silk fibroin, 12-16% sericin and a small amount of wax and inorganic substances. In order to obtain a good feel of silk, most of the sericin must be removed during silk processing, and the removed sericin is discarded as waste liquid, which not only wastes a lot of biological resources, but also causes serious water pollution. With the development of science and technology, people's understanding of the excellent properties of sericin is deepening, and the research on the development and utilization of sericin, a natural protein resource, has gradually been paid attention to. Sericin is a kind of natural polymer protein. Among the 18 ki...

Examples

Embodiment

[0016] Example: Easily soluble tussah sericin powder is prepared from insoluble sericin liquid.

[0017] Its manufacturing process is as follows:

[0018] 1. Raw material preparation: insoluble sericin solution.

[0019] 2. Hydrolysis: The hydrolysis process is a mixed double-enzyme method. Select dispase and trypsin. Among them: the ratio of neutral protease: trypsin is 2:1, the hydrolysis time is 6 hours, the hydrolysis temperature is 40°C, and the hydrolysis pH value is 7.0.

[0020] 3. Ultrafiltration separation: adopt ultrafiltration membrane components and process methods. An ultrafiltration membrane with a molecular weight cut-off of 2000 was used. The concentration of sericin solution is 7.25g / L, the ambient temperature is 15-25°C, the working pressure of the membrane is 0.18Mpa, and the retention rate of sericin is 88%.

[0021] 4. Decolorization: Since sericin is recovered from degumming wastewater, its color is taupe, which affects the use effect of sericin, so...

technical field

[0001] The invention relates to a method for producing tussah sericin protein powder, in particular, the invention relates to a tussah sericin protein powder for preparing cosmetic mask materials and biomedical materials. Background technique

[0002] Tussah silk is a natural wild protein fiber, which is composed of about 83% silk fibroin, 12-16% sericin and a small amount of wax and inorganic substances. In order to obtain a good feel of silk, most of the sericin must be removed during silk processing, and the removed sericin is discarded as waste liquid, which not only wastes a lot of biological resources, but also causes serious water pollution. With the development of science and technology, people's understanding of the excellent properties of sericin is deepening, and the research on the development and utilization of sericin, a natural protein resource, has gradually been paid attention to. Sericin is a kind of natural polymer protein. Among the 18 ki...

Examples

Embodiment

[0016] Example: Easily soluble tussah sericin powder is prepared from insoluble sericin liquid.

[0017] Its manufacturing process is as follows:

[0018] 1. Raw material preparation: insoluble sericin solution.

[0019] 2. Hydrolysis: The hydrolysis process is a mixed double-enzyme method. Select dispase and trypsin. Among them: the ratio of neutral protease: trypsin is 2:1, the hydrolysis time is 6 hours, the hydrolysis temperature is 40°C, and the hydrolysis pH value is 7.0.

[0020] 3. Ultrafiltration separation: adopt ultrafiltration membrane components and process methods. An ultrafiltration membrane with a molecular weight cut-off of 2000 was used. The concentration of sericin solution is 7.25g / L, the ambient temperature is 15-25°C, the working pressure of the membrane is 0.18Mpa, and the retention rate of sericin is 88%.

[0021] 4. Decolorization: Since sericin is recovered from degumming wastewater, its color is taupe, which affects the use effect of sericin, so...

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