Method of preparing a solution of lactic or colostric immunoglobulins or both and use thereof

US4644056A · kind A · utility

Assignee

• Biotest Pharma GmbH · DE

Inventors

• Norbert Kothe · Kronberg, DE
• Herbert Dichtelmuller · Pocking, DE
• Wolfgang Stephan · Heidelberg, DE
• Bertram Eichentopf · Bad Soden, DE

Key dates

• Filing date: Sep 3, 1985
• Grant date: Feb 17, 1987
• Expiry date: Sep 3, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S530/863
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A method of preparing a solution of lactic or colostric immunoglobulins or both by processing milk or colostrum or both accompanied by precipitation of the caseins, characterized in that milk or colostrum or both are acidified to a pH of 4.0-5.5, subjected to cross-flow filtration in a filtration unit with a mean pore size of 0.1-1.2 .mu.m, and the low-molecular components removed by means of further cross-flow filtration in another filtration unit with a limit of separation of 5 000-80 000 daltons, as well as an agent for treating bacterial and viral infections that consists of a solution obtained by means of said method.