Cosmetic containing spider silk hydrolysate and preparation method thereof
A technology for cosmetics and spider silk is applied in the field of cosmetics containing spider silk hydrolyzate and its preparation, and achieves the effects of low energy consumption, low investment and high operational safety factor
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Embodiment 1
[0050] Example 1 Preparation of spider silk hydrolyzate
[0051] The hydrolysis process of the present embodiment spider silk hydrolyzate is:
[0052] (1) Pretreatment: Take 2g of spider silk, rinse it with purified water to remove impurities, and put it in an agate ball mill for crushing until the spider silk has a flocculent or powdery growth length of <1mm.
[0053] (2) Hydrolysis: Put the pulverized spider silk into a 1L glass container, add 200mL of 20g / L sodium hydroxide solution, and hydrolyze for 5h at a temperature of 80°C.
[0054] (3) Centrifugation: Centrifuge the hydrolyzate at a rotational speed of 15000r / min for 20min.
[0055] (4) Collection: Collect the centrifuged hydrolyzate into a glass container.
[0056] (5) Hydrolysis: hydrolyze the unhydrolyzed spider silk again, the method is the same as (2).
[0057] (6) Neutralization: neutralize with 1mol / L hydrochloric acid solution to pH 4.5.
[0058] (7) Filtration: filter the neutralized hydrolyzate through ...
Embodiment 2
[0060] Example 2 Preparation of spider silk hydrolyzate
[0061] The hydrolysis process of the present embodiment spider silk hydrolyzate is:
[0062] (1) Pretreatment: Take 2g of spider silk, rinse it with purified water to remove impurities, and put it in an agate ball mill for crushing until the spider silk has a flocculent or powdery growth length of <1mm.
[0063] (2) Hydrolysis: Put the pulverized spider silk into a 1L glass container, add 200mL of 15g / L sodium hydroxide solution, and hydrolyze for 4.5h at a temperature of 85°C.
[0064] (3) Centrifugation: Centrifuge the hydrolyzate at a rotational speed of 15000r / min for 20min.
[0065] (4) Collection: Collect the centrifuged hydrolyzate into a glass container.
[0066] (5) Hydrolysis: hydrolyze the unhydrolyzed spider silk again, the method is the same as (2).
[0067] (6) Neutralization: neutralize with 1mol / L hydrochloric acid solution to pH 5.0.
[0068] (7) Filtration: filter the neutralized hydrolyzate throug...
Embodiment 3
[0070] Example 3 Preparation of spider silk hydrolyzate
[0071] The hydrolysis process of the present embodiment spider silk hydrolyzate is:
[0072] (1) Pretreatment: Take 2g of spider silk, rinse it with purified water to remove impurities, and put it in an agate ball mill for crushing until the spider silk has a flocculent or powdery growth length of <1mm.
[0073] (2) Hydrolysis: Put the pulverized spider silk into a 1L glass container, add 200mL of 25g / L sodium hydroxide solution, and hydrolyze for 4 hours at a temperature of 90°C.
[0074] (3) Centrifugation: Centrifuge the hydrolyzate at a rotational speed of 15000r / min for 20min.
[0075] (4) Collection: Collect the centrifuged hydrolyzate into a glass container.
[0076] (5) Hydrolysis: hydrolyze the unhydrolyzed spider silk again, the method is the same as (2).
[0077] (6) Neutralization: neutralize with 1mol / L hydrochloric acid solution to pH 5.5.
[0078] (7) Filtration: filter the neutralized hydrolyzate thr...
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