Patent · US Expired

Method for making a sedimentation resistant stable enzyme dispersion

US5169771A · kind A · utility

4Cited by

6References

15Claims

0Family size

Assignee

Rohm Co., Ltd. · JP

Inventors

Juergen Christner · Emmelshausen, DE
Hermann Plainer · Reinheim, DE
Roland Reiner · Basel, CH

Key dates

Filing date	Aug 15, 1990
Grant date	Dec 8, 1992
Priority date	—
Expiry date	Aug 15, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12N9/96
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A method for making a stable aqueous liquid formulation containing at least one enzyme having proteolytic activity is disclosed. The method involves precipitating the enzyme from an aqueous medium with a salt to form a dispersion of the enzyme. The dispersion has a density of 1.22 g/cm.sup.3 to 1.23 g/cm.sup.3 due to the use of the salt. This process yields a sedimentation-resistant stable enzyme dispersion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.