JPS5640695A - Powdery silk fibroin peptide and its preparation - Google Patents
Powdery silk fibroin peptide and its preparationInfo
- Publication number
- JPS5640695A JPS5640695A JP11693879A JP11693879A JPS5640695A JP S5640695 A JPS5640695 A JP S5640695A JP 11693879 A JP11693879 A JP 11693879A JP 11693879 A JP11693879 A JP 11693879A JP S5640695 A JPS5640695 A JP S5640695A
- Authority
- JP
- Japan
- Prior art keywords
- aqueous solution
- silk
- solution
- silk fibroin
- glossed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Peptides Or Proteins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To prepare the titled material having specific average degree of polymerization, average particle diameter and bulk density, and useful as a raw material of cosmetic, etc., economically, in a industrial scale, by dissolving glossed silk in a specific aqueous medium, dialyzing and hydrolyzing the solution, and spray-drying to obtain powdery material.
CONSTITUTION: Glossed silk is dissolved in an aqueous solution of copper ethylenediamine, an aqueous solution of copper hydroxide-ammonia, an aqueous solution of copper hydroxide-alkali-glycerin, an aqueous solution of lithium bromide, or an aqueous solution of chloride, nitrate or thiocyanate of calcium, magnesium or zinc, etc. The solution thus obtained is dialyzed to obtain an aqueous solution containing 0.5W20wt% of silk fibroin. It is hydrolyzed with an enzyme, acid, or alkali, and spray-dried to obtain the objective powdery material which has an average polymerization degree (n) of 2W45, an average particle diameter of 10W40μ and a bulk density ρ (g/cm3) denoted by the formula, and is essentially amorphous.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11693879A JPS5640695A (en) | 1979-09-11 | 1979-09-11 | Powdery silk fibroin peptide and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11693879A JPS5640695A (en) | 1979-09-11 | 1979-09-11 | Powdery silk fibroin peptide and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5640695A true JPS5640695A (en) | 1981-04-16 |
Family
ID=14699416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11693879A Pending JPS5640695A (en) | 1979-09-11 | 1979-09-11 | Powdery silk fibroin peptide and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5640695A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070550A1 (en) * | 2001-03-07 | 2002-09-12 | Kyoto Bio-Medical Sciences, Inc. | Fibroin powders and aqueous fibroin solutions for medical use |
| KR100354960B1 (en) * | 1999-10-23 | 2002-10-05 | 대한민국 | A method for preparation of high purified silk peptide by gel filtration chromatography |
| JP2002302499A (en) * | 2001-04-04 | 2002-10-18 | Kanebo Ltd | Granular silk fibroin and method for producing the same |
| KR100420824B1 (en) * | 2001-06-21 | 2004-03-02 | 배도규 | Silk peptide and silk fibroin powder materials made by silk and manufacturing method for those materials |
| CN103301033A (en) * | 2013-05-30 | 2013-09-18 | 南通缘生堂生物科技有限公司 | Preparation method of ultramicro silk fibroin powder |
-
1979
- 1979-09-11 JP JP11693879A patent/JPS5640695A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100354960B1 (en) * | 1999-10-23 | 2002-10-05 | 대한민국 | A method for preparation of high purified silk peptide by gel filtration chromatography |
| WO2002070550A1 (en) * | 2001-03-07 | 2002-09-12 | Kyoto Bio-Medical Sciences, Inc. | Fibroin powders and aqueous fibroin solutions for medical use |
| JP2002302499A (en) * | 2001-04-04 | 2002-10-18 | Kanebo Ltd | Granular silk fibroin and method for producing the same |
| KR100420824B1 (en) * | 2001-06-21 | 2004-03-02 | 배도규 | Silk peptide and silk fibroin powder materials made by silk and manufacturing method for those materials |
| CN103301033A (en) * | 2013-05-30 | 2013-09-18 | 南通缘生堂生物科技有限公司 | Preparation method of ultramicro silk fibroin powder |
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