发明名称 |
PROCEDE DE TRAITEMENT DE CHUTES DE PEAUX |
摘要 |
The comminuted hide wastes, e.g. machine leather scrap are broken down hydrolytically in a first step using alkaline proteinases having an optimum action between pH 9 and 13 in the presence of urea in the pH range optimal for the enzyme used. In a second step, the hydrolysis is completed with the addition of weakly alkaline, neutral or acidic proteinases having an optimum action between pH 2 and 5 in the presence of a strong acid in the pH range optimum for the enzyme or enzyme mixture used. Fat and protein hydrolysates are then separated from one another by demixing at a temperature in the range from 80 to 100 DEG C. Products are thus obtained from the hide wastes which can be reprocessed to give high-grade protein and fat-containing substances.
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申请公布号 |
FR2380295(A1) |
申请公布日期 |
1978.09.08 |
申请号 |
FR19780003705 |
申请日期 |
1978.02.09 |
申请人 |
FREUDENBERG CARL |
发明人 |
KLAUS BRAUMER, ZDENEK ECKMAYER, ROLF MONSHEIMER ET ERNST PFLEIDERER |
分类号 |
A23J3/30;A23J3/34;A61K8/65;A61K8/98;A61K38/01;A61Q19/00;C05F1/00;C07K1/12;C07K14/435;C07K14/78;C12P7/64;C12P21/06;(IPC1-7):07G7/00 |
主分类号 |
A23J3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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