This standard specifies the microbiological determination method for β-lactamase in raw milk and its products using sulbactam as an inhibitor (cup and saucer method). This standard is suitable for the detection of β-lactamase in raw milk, pure milk, yogurt, milk powder, etc.
SN/T 3979-2014 history
2014SN/T 3979-2014 Determination of penicillinase in milk and dairy products.Cylinder plate method