Description
Nutrient Gelatin is a differential semi-solid medium for demonstrating gelatinase activity.
Gelatinase-producing organisms hydrolyse gelatin and cause persistent liquefaction. Refrigeration after incubation distinguishes enzymatic liquefaction from temporary melting caused by incubation temperature.
A pure culture is stab-inoculated and incubated at approximately 20–22°C, with tubes examined over the period stated in the PDF. The medium may also be used in plate-count applications.
