JPS5640695A - Powdery silk fibroin peptide and its preparation - Google Patents

Powdery silk fibroin peptide and its preparation

Info

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
Application number
JP11693879A
Other languages
Japanese (ja)
Inventor
Kuniaki Takamatsu
Kenichi Otsubo
Hiroshi Jinno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Original Assignee
Kanebo Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanebo Ltd filed Critical Kanebo Ltd
Priority to JP11693879A priority Critical patent/JPS5640695A/en
Publication of JPS5640695A publication Critical patent/JPS5640695A/en
Pending legal-status Critical Current

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  • 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
JP11693879A 1979-09-11 1979-09-11 Powdery silk fibroin peptide and its preparation Pending JPS5640695A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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