| 摘要 |
<p>Compositions containing the desired proteins but being substantially free from any infectious viruses or modifications of the desired proteins. These compositions are produced by subjecting protein-containing compositions with a fear of the contamination with viruses to at least three procedures selected from among heating, UV-irradiation, treatment with a surfactant and treatment with a membrane for eliminating viruses. This production process makes it possible to efficaciously inactivate or eliminate viruses without damaging the activities of the proteins to thereby give compositions containing the desired proteins but being substantially free from any infectious viruses or modifications of the desired proteins. Thus, protein-containing preparations with a high safety and excellent qualities can be obtained.</p> |
