发明名称 |
METHOD FOR PREPARING SILK POWER PEPTIDE BY ENZYMATIC DEGRADATION |
摘要 |
PURPOSE: Provided is a method for preparing silk power peptide by enzymatic degradation of silk fibroin. The peptide has a molecular weight of 12,000-13,000, polymerization of 163 and solubility of 70% at pH 1-13, and its internal absorptivity is thus high, so as to contribute to development of functional foods or medicines. CONSTITUTION: The method for preparing silk power peptide by enzymatic degradation of silk fibroin comprises the following steps of: (a) purifying silk fibroin by adding flavourzyme or a protein produced from Aspergillus oryzae and Bacillus subtilis, Bacillus thermoproteolyticus Rokko thereinto; (b) removing salt by adding calcium chloride and ethanol in the resultant and dialyzing them; and (c) obtaining powdered peptide by adding flavourzyme or a protein produced from Aspergillus oryzae and Bacillus subtilis, Bacillus thermoproteolyticus Rokko into the solution and then reacting and freeze-drying them.
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申请公布号 |
KR100286388(B1) |
申请公布日期 |
2001.01.12 |
申请号 |
KR19980008600 |
申请日期 |
1998.03.14 |
申请人 |
REPUBLIC OF KOREA(MANAGEMENT : RURAL DEVELOPMENT ADMINISTRATION) |
发明人 |
KIM, SEON YEO;LEE, GWANG GIL;LEE, YONG U;LIM, SU HO;RYU, GANG SEON;YEO, JU HONG |
分类号 |
C12P21/06;(IPC1-7):C12P21/06 |
主分类号 |
C12P21/06 |
代理机构 |
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主权项 |
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