Cocoon sericin layer alcohol soluble substance and preparation method thereof

A technology of alcohol-soluble matter and cocoon silk, which is applied in the field of silkworm cocoon sericin layer alcohol-soluble matter and its preparation, can solve the problems of impracticality, etc., and achieve good application prospects, obvious social benefits, and low cost effects
CN101601640AInactive Publication Date: 2009-12-16SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2009-12-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a cocoon sericin layer alcohol soluble substance, comprising the following steps: wetting clean cocoon shell, cocoon outer floss, waste silk or raw silk in water and carrying out degumming treatment for 1-5h under the conditions that the temperature is 110-140 DEG C and the pressure is 0.1-0.26Mpa to obtain silk degumming liquid; filtering and concentrating the silk degumming liquid to obtain concentrated sericin liquid and then adding an organic solvent for extraction; collecting supernatant and repeatedly extracting lower precipitate with the organic solvent; carrying out spray drying or vacuum freeze drying after concentrating combined supernatant to prepare powder, namely the cocoon sericin layer alcohol soluble substance; wherein, the volume ratio of the concentrated sericin liquid to the organic solvent is 1:1-9. The non-sericin component obtained by the invention has antioxidant activity, antityrosinase activity and alpha-glucosidase inhibition activity, and has wide application prospects in such aspects as cosmetics, anti-aging health care products, hypoglycemic drugs and the like.
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Description

technical field

[0001] The invention relates to an extract of silkworm cocoon sericin layer, in particular to an alcohol soluble product of silkworm cocoon sericin layer and a preparation method thereof. Background technique

[0002] Silk is mainly composed of silk fibers accounting for 70% of the total amount and 30% of the sericin layer covering the silk fibers. In the sericin layer: sericin protein accounts for about 25% of the total cocoon layer, and the remaining 5% is non-sericin components, such as carbohydrates, waxes and pigments. Silk fiber and sericin are secreted by the rear and middle silk gland cells of the silkworm respectively, while the non-sericin component comes from mulberry leaves, which are eaten by silkworms. It is digested and absorbed by the midgut, enters the blood, and finally reaches the silk glands to mix with sericin. When silkworms spin cocoons, this gelatinous mixture is coated on the outside of silk fibers to protect and glue the fibers, ma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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