Preparation of elastase |
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| 申请号 | US53824255 | 申请日 | 1955-10-03 | 公开(公告)号 | US2886489A | 公开(公告)日 | 1959-05-12 |
| 申请人 | ARMOUR & CO; | 发明人 | GRANT NORMAN H; ROBBINS KENNETH C; | ||||
| 摘要 | |||||||
| 权利要求 | 1. IN A PROCESS FOR PREPARING AN ELASTOLYTIC ENZYME SUBSTANCE, WHEREIN AN ELASTASE SUBSTANCE IS EXTRACTED FROM ELASTASE-BEARING TISSUE TO PROVIDE A CRUDE AQUEOUS CONCENTRATE THEREOF, THE STEPS OF CONTACTING A WEAK CATION EXCHANGER AND AQUEOUS CONCENTRATE OF SAID ELASTASE SUBSTANCE AT A PH OF FROM 4.5 TO 5.0 AND AN IONIC STRENGTH OF NOT MORE THAN O.4 TO PRODUCE AN ADSORBATE OF SAID OF NOT MORE THAN 0.4 TO PRODUCE AN ADSORBATE OF SAID FROM SAID ADSORBATE WITH AN AQUEOUS SALINE SOLUTION AT A PH OF FROM 4.5 TO 5.0 AND AN IONIC STRENGTH OF AT LEAST 0.4. |
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| 说明书全文 | |||||||
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