Nutrient Pad Sets – Introduction
Nutrient pad sets (NPS) are sterile dehydrated nutrient culture media that are ready for immediate use after addition of sterile water. They are made of biologically inert cellulose cardboard that serves as a substrate for the nutrient solution. Since it does not bind the nutrients either chemically or physically, the nutrient components are completely available for the growth of microorganisms.
The composition of the various nutrient solutions used for the various NPS comply with the formulations specified in the relevant standards and regulations.
Nutrient pad sets have a number of advantages over conventional agar media:
- Storage at room temperature
- Shelf life of up to 2 years
- Ready for immediate use after moistening
- Easy handling