NutriDisk nutrient pads

> The NutriDisk Set

A cellulose pad is impregnated with a dehydrated nutrient base which becomes a nutrient medium when moistened with sterile water. The pad is a stable carrier which does not alter the nutrient medium or influence the growth of the microorganisms in any way. Growth is usually more uniform and quicker than on conventional agar nutrient plates.

One method, many advantages

New packaging format

NutriDisk is now supplied without membranes giving you more flexibility to choose your required membrane. The sterile NutriDisks are available in 10 packs of 10 pieces.

Versatile applications

NutriDisk is available with a wide range of different nutrient media formulations to provide a broad spectrum of applications covering all fields of microbiological analysis.

Reduced risk of contamination

Simple handling, compact assembly and the ready-to-use nutrient media offer a high degree of safety from contamination.

Exact results

Cellulose pad, nutrient media formulation and impregnation process are monitored by us so that your results are always comparable, both within a single batch and from batch to batch.

Long shelf life

If stored dry at room temperature, NutriDisks have a shelf life of one year.

Azide NutriDisk

Selective medium for the detection of faecal streptococci in water, food, and other test materials.
Note: Streptococci form small dark red colonies.
Recommended incubation condition: 24-48 hrs. at 37 °C
Recommended membrane filter: white, gridded, 0.45µm

Caso NutriDisk

For the determination of the colony count and for the detection of predominant or subtly damaged microorganisms in pharmaceuticals, cosmetics and other products.
Recommended incubation condition: 48 hrs. at 37 °C
Recommended membrane filter: green, gridded, 0.45µm

Cetrimide NutriDisk

Selective medium for the determination of Pseudomonas aeruginosa in water, pharmaceuticals and cosmetics, as well as other test material (USP, DIN).
Note: Ps.aeruginosa forms blue colonies with blue halo.
Recommended incubation condition: 48 hrs. at 37 °C
Recommended membrane filter: white, gridded, 0.45µm

Endo NutriDisk

Selective medium for the detection of E.coli and coliform bacteria in water, foods and other substances (DEV,APHA).
Note: E.coli develops dark red colonies with a greenish-metallic surface sheen.
Recommended incubation condition: 24 hrs. at 37 °C or 42-44 °C
Recommended membrane filter: white, gridded, 0.45µm

M-FC NutriDisk

Selective medium for the detection of E.coli and faecal coliforms in water, foods and other substances.
Note: As a rule E.coli already develops blue colonies after 16 hours.
Recommended incubation condition: 16-24 hrs. at 44 °C
Recommended membrane filter: white, gridded, 0.45µm

> Orange Serum NutriDisk

Orange Serum NutriDisk

For the detection of acidophilic and acidotolerant microorganisms in beverages and foods (APHA).
Note: Anaerobic incubation also initiates growth of the fastidious lactobacilli.
Recommended incubation condition: 2-3 days at 30 °C
Recommended membrane filter: green, gridded, 0.45µm

Plate Count NutriDisk

For the determination of the colony count of water, milk, foods, etc. (DLC,APHA).
Recommended incubation condition: 48-72 hrs. at 30 °C
Recommended membrane filter: green, gridded, 0.45µm

Sabouraud NutriDisk

For the detection of yeasts and moulds in pharmaceuticals, cosmetics, packaging material, for isolating dermatophytes and for pure cultures (USP).
Recommended incubation condition: 2-5 days at 25-30 °C
Recommended membrane filter: black, gridded, 1.2µm

Schaufus Pottinger NutriDisk

For the detection of yeasts and moulds in beverages and sugar.
Note: Sugar fermenters develop yellowish colonies, non-acid formers are blue-green (ICUMSA).
Recommended incubation condition: 2-3 days at 30 °C
Recommended membrane filter: green, gridded, 1.2µm

Standard TTC-NutriDisk

For the determination of the colony count of water and waste water, with Triphenyltetrazoliumchloride (TTC).
Note: As all bacteria develop pink colonies (Formazane formation from TTC), routine tests are optically easy to evaluate.
Recommended incubation condition: 48-72 hrs. at 20 °C or 48 hrs. at 30 °C
Recommended membrane filter: green, gridded, 0.45µm

Tergitol-TTC NutriDisk

Selective medium for the detection of E.coli and coliform bacteria in water, foods and other substances.
Note: After 12-16 hrs. (early recognition). E.coli develops small yellowish, later orange colonies surrounded by a yellow halo.
Recommended incubation condition: 12-24 hrs. at 37 °C
Recommended membrane filter: white, gridded, 0.45µm

Wort NutriDisk

For the detection of yeasts and moulds in beverages, foods and other products.
Recommended incubation condition: 2-5 days at 25 °C
Recommended membrane filter: black, gridded, 0.6µm

Growth or positive reaction to selective medium should be regarded with suspicion. For safe diagnosis further comparative material is necessary (e.g."IMVIC-Test"). Respect the national epidemics control law.