JPS6455191A - Production of ultrafine powder of silk protein - Google Patents
Production of ultrafine powder of silk proteinInfo
- Publication number
- JPS6455191A JPS6455191A JP21147987A JP21147987A JPS6455191A JP S6455191 A JPS6455191 A JP S6455191A JP 21147987 A JP21147987 A JP 21147987A JP 21147987 A JP21147987 A JP 21147987A JP S6455191 A JPS6455191 A JP S6455191A
- Authority
- JP
- Japan
- Prior art keywords
- silk
- protein
- solution
- aqueous solution
- remove
- 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.)
- Granted
Links
Abstract
PURPOSE:To obtain the titled fine powder, by adding a hydrolase to a silk protein solution prepared by dispersing liquid silk protein in a silk gland in water or regenerated silk protein solution obtained by dissolving silk fibers or cocoon fibers in an aqueous solution of salts and dialyzing the solution and drying the resultant precipitates and supernatant liquid. CONSTITUTION:A silk gland is taken from the body of a silk worm and washed to remove only silk gland cells and provide a liquid silk protein in the silk gland. The above-mentioned protein is then dipped in distilled water to remove silk sericin and the obtained protein is dispersed in distilled water to afford an aqueous solution of silk fibroin. Raw silk obtained from a silk worm is boiled in a solution f sodium carbonate to remove sericin and the resultant scoured silk is dissolved in a solution of neutral salts, dialyzed to remove the neutral salts and afford an aqueous solution of regenerated silk fibroin. alpha- Chymotrypsin is then reacted with the above-mentioned aqueous solution of silk fibroin or aqueous solution of the regenerated silk fibroin to provide precipitates and supernatant liquid, which are then separated and respectively dried to afford the aimed ultrafine powder of the silk protein.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21147987A JPS6455191A (en) | 1987-08-27 | 1987-08-27 | Production of ultrafine powder of silk protein |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21147987A JPS6455191A (en) | 1987-08-27 | 1987-08-27 | Production of ultrafine powder of silk protein |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6455191A true JPS6455191A (en) | 1989-03-02 |
JPH0144320B2 JPH0144320B2 (en) | 1989-09-27 |
Family
ID=16606632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21147987A Granted JPS6455191A (en) | 1987-08-27 | 1987-08-27 | Production of ultrafine powder of silk protein |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6455191A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0753533A1 (en) * | 1995-01-27 | 1997-01-15 | JAPAN as repr. by DIR. GENERAL of NATIONAL INST. OF SERICULTURAL & ENTOMOLOGICAL SCIENCE MINISTRY OF AGR, FORESTRY & FISHERI | Process for producing fine silk fibroin powder |
WO2001003654A1 (en) * | 1999-07-12 | 2001-01-18 | Japan As Represented By Director General Of National Institute Of Sericultural And Entomological Science Ministry Of Agriculture, Forestry And Fisheries | Cosmetic containing crystalline silk ultra-fine powder |
WO2002034885A1 (en) * | 2000-10-24 | 2002-05-02 | National Institute Of Agrobiological Sciences | Sericin-containing material, process for producing the same and method of using the same |
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 |
KR100393832B1 (en) * | 1999-06-03 | 2003-08-06 | 독립행정법인농업생물자원연구소 | Method for manufacturing crystalline superfine silk powder |
WO2006033473A1 (en) * | 2004-09-22 | 2006-03-30 | Minekawa, Sumiko | Denatured silk and aqueous extract thereof |
CN112442190A (en) * | 2019-08-29 | 2021-03-05 | 武汉大学 | Preparation method of silk nano material |
-
1987
- 1987-08-27 JP JP21147987A patent/JPS6455191A/en active Granted
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0753533A4 (en) * | 1995-01-27 | 1999-01-20 | Japan As Repr By Dir General O | Process for producing fine silk fibroin powder |
EP0753533A1 (en) * | 1995-01-27 | 1997-01-15 | JAPAN as repr. by DIR. GENERAL of NATIONAL INST. OF SERICULTURAL & ENTOMOLOGICAL SCIENCE MINISTRY OF AGR, FORESTRY & FISHERI | Process for producing fine silk fibroin powder |
KR100393832B1 (en) * | 1999-06-03 | 2003-08-06 | 독립행정법인농업생물자원연구소 | Method for manufacturing crystalline superfine silk powder |
WO2001003654A1 (en) * | 1999-07-12 | 2001-01-18 | Japan As Represented By Director General Of National Institute Of Sericultural And Entomological Science Ministry Of Agriculture, Forestry And Fisheries | Cosmetic containing crystalline silk ultra-fine powder |
EP1110534A4 (en) * | 1999-07-12 | 2006-02-08 | Nat Inst Of Agrobio Sciences | Cosmetic containing crystalline silk ultra-fine powder |
WO2002034885A1 (en) * | 2000-10-24 | 2002-05-02 | National Institute Of Agrobiological Sciences | Sericin-containing material, process for producing the same and method of using the same |
US6815427B2 (en) | 2000-10-24 | 2004-11-09 | National Institute Of Agrobiological Sciences | Sericin-containing material, process for producing the same method of using the same |
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 |
WO2006033473A1 (en) * | 2004-09-22 | 2006-03-30 | Minekawa, Sumiko | Denatured silk and aqueous extract thereof |
JPWO2006033473A1 (en) * | 2004-09-22 | 2008-05-15 | 峰川 すみ子 | Modified silk and its extracted aqueous solution |
CN112442190A (en) * | 2019-08-29 | 2021-03-05 | 武汉大学 | Preparation method of silk nano material |
CN112442190B (en) * | 2019-08-29 | 2022-04-01 | 武汉大学 | Preparation method of silk nano material |
Also Published As
Publication number | Publication date |
---|---|
JPH0144320B2 (en) | 1989-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |