This standard describes a method for the qualitative determination of any residual activity of alkaline phosphatase in cottage cheese. Comments 1. For general instructions, consult NPR 3749. 2. The quantitative determination of phosphatase activity is described in NEN 3774, which applies not only to cheese, but also to cottage cheese.
NEN 3791-1986 history
1986NEN 3791-1986 Quarg (fresh cheese) - Detection of phosphatase activity