发明名称 |
Process for the production of gelatin from fish skins |
摘要 |
A process for the production of gelatin from fish skins comprises the steps of: (a) cleaning the skins in order to remove therefrom substantially all superfluous material; (b) treating with dilute aqueous alkali; (c) washing with water until the washing water is substantially neutral; (d) treating with dilute aqueous mineral acid; (e) washing with water until the washing water is substantially neutral; (f) treating with dilute aqueous citric acid and/or another suitable organic acid; (g) washing with water until the washing water is substantially neutral; and (h) extracting with water at elevated temperatures not above about 55 DEG c., the washed citric acid-treated skins. In practice, the present process employs much lower temperatures than known heretofore for the treatment steps, which results in a high quality product (e.g. absence of a fishy smell), compared with the prior art.
|
申请公布号 |
US5093474(A) |
申请公布日期 |
1992.03.03 |
申请号 |
US19890338595 |
申请日期 |
1989.04.12 |
申请人 |
BAR ILAN UNIVERSITY |
发明人 |
GROSSMAN, SHLOMO;BERGMAN, MARGALIT |
分类号 |
A23J1/10;C07K1/14;C07K14/78;C09H3/00;C09H3/02 |
主分类号 |
A23J1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|