Isolation of Uridine Diphosphogalactose from Escherichia coli Mutant Cells*

Abstract
An improved method for the isolation of UDPgalactose from a mutant of Escherichia coli is described. The purity of the preparation is about 95% when it is measured enzymatically and spectrophotometrically and the yield is 13 μmoles per liter of culture.