Process for stabilizing biologically active materials with modified collagen hydrolyzate

Biologically active, proteinaceous materials, e.g. bacteria, bacterial metabolites, viruses, sera and enzymes are protected from loss of activity by addition thereto of from 0.5 to 5% by weight of a cross-linked collagen degradation product which is either a) a collagen which is first hydrolytically...

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Bibliographische Detailangaben
Hauptverfasser:	SCHWICK HANS GERHARD, SCHWEINSBERG HANS
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BEER BIOCHEMISTRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TRAPPING VINEGAR WINE
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Beschreibung
Zusammenfassung:	Biologically active, proteinaceous materials, e.g. bacteria, bacterial metabolites, viruses, sera and enzymes are protected from loss of activity by addition thereto of from 0.5 to 5% by weight of a cross-linked collagen degradation product which is either a) a collagen which is first hydrolytically degraded to a product having a M.W. of 2,000 to 20,000 which is then cross-linked with a polyfunctional isocyanate to yield a product with a M.W. of 15,000 to 60,000, or b) a collagen which is first cross-linked with a polyfunctional isocyanate and is then hydrobytically degraded to yield a product with a M.W. of 15,000 to 60,000. The examples relate to the stabilization of numerous vaccine materials, e.g. pertussis and BCG vaccines, diphtheria and tetanus toxoid, tuberculin, viruses, e.g. polio virus and Newcastle disease virus, sera e.g. rickettsia antiserum and enzymes e.g. plasmin and streptokinase.