ISO 29981 | IDF 220: 2010 - Milk products - Enumeration of presumptive bifidobacteria - Colony count technique at 37 degrees C Type:PDF check test samples of unknown

check test samples of unknown origin for the absence of main milk-clotting enzymes of non-bovine origin by using an appropriate method

This standard specifies a method for the determination of the nitrate content of milk and milk products by molecular-absorption spectrometry after Griess reaction (preceded by enzymatic reduction)

of dried whole milk

The guidelines specified are applicable to the analysis of cow’s milk

b) the principles underlying any acid-butyrometric analysis and the main operating requirements

ISO 29981 | IDF 220: 2010 - Milk products - Enumeration of presumptive bifidobacteria - Colony count technique at 37 degrees C Type:PDF check test samples of unknownWithdrawn and replaced by the joint standard ISO 29981 IDF 220: 2024