Title:
INACTIVATION OF VIRUS OF ANIMAL ORGAN DERIVED PROTEIN
Document Type and Number:
Japanese Patent JPH03148226
Kind Code:
A
Abstract:
PURPOSE: To suppress irreversible denaturation by heat to the minimum and to inactivate a virus without damaging effectiveness of the objective protein by salting out a water-soluble protein extracted from animal tissue and heat- treating formed precipitate.
CONSTITUTION: A water-soluble protein extracted from animal tissue, such as water-soluble protein derived from human or bovine placenta, having fibroblast multiplying action, for example, is suspended in 60% saturated solution of sodium sulfate, or a precipitate thereof is partially collected and heat-treated to inactivate a virus.
Inventors:
ANDO YOSHITAKA
ANDO YUTAKA
ANDO YUTAKA
Application Number:
JP27871190A
Publication Date:
June 25, 1991
Filing Date:
October 16, 1990
Export Citation:
Assignee:
ICHIMARU PHARCOS INC
International Classes:
A61K8/72; A61K8/64; A61K8/96; A61K8/98; A61K38/00; C07K14/435; C07K14/52; (IPC1-7): A61K7/00; A61K37/02; C07K3/00; C07K15/06
Domestic Patent References:
| JPS62116519A | 1987-05-28 |