| 摘要 |
<p>The present invention provides methods for the purification of a collagenase culture filtrate of Clostridium histolyticum. The culture filtrate is purified by contacting with charcoal and subsequently separating the charcoal and any bound impurities. The culture filtrate is characterized as having brown pigmented impurities which are removed during the charcoal purification process.</p> |
