Use of a colorimetric technique for rhodamine 6G for free fatty acid assay in biological membranes

[The characterization of microbial lipases. 1. The determination of lipase activity]

In the selection of an appropriate method for activity determination of lipases existing technical equipment, kind of enzymes, number of samples investigated (e.g. in routine analysis), and expected sensitivity range have to be taken into account. Titrimetric methods and above all copper salt methods with their high detection sensitivity are the most suitable procedures for activity determination of lipases used in laboratories and institutions without equipment for radiochemical analysis.