Once prepared, nutrient agar plates typically have a shelf life of about 2 to 4 weeks when stored properly in a refrigerator at 2-8°C. It’s important to keep them in sealed, sterile containers to prevent contamination and dehydration.
70148
Nutrient Agar
NutriSelect® Plus, according to ISO 16266, powder, for bacteria, for coliforms, pkg of 100 g, pkg of
Synonym(s):
NA, standard nutrient agar
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About This Item
UNSPSC Code:
41171605
NACRES:
NA.74
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agency
according to ISO 16266
Quality Level
sterility
non-sterile
form
powder
shelf life
limited shelf life, expiry date on the label
composition
agar, 15 g/L
meat extract, 1 g/L
peptone, 5 g/L
sodium chloride, 5 g/L
yeast extract, 2 g/L
packaging
pkg of 100 g
pkg of
manufacturer/tradename
NutriSelect® Plus
technique(s)
microbiological culture: suitable
final pH
7.1±0.2 (25 °C)
application(s)
agriculture
clinical testing
environmental
food and beverages
life science and biopharma
microbiology
water monitoring
storage temp.
2-25°C
suitability
bacteria
coliforms
nonselective for Aspergillus spp.
nonselective for Bacillus spp.
nonselective for Candida spp.
nonselective for Enterococcus spp.
nonselective for Escherichia coli
nonselective for Listeria spp.
nonselective for Pseudomonas spp.
nonselective for Staphylococcus spp.
nonselective for Streptococcus spp.
nonselective for bacteria (General Media)
nonselective for coliforms
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This Item | 70116 | N9405 | 17222 |
|---|---|---|---|
| suitability nonselective for Aspergillus spp., nonselective for Candida spp., nonselective for Escherichia coli, nonselective for Pseudomonas spp., nonselective for Streptococcus spp., nonselective for coliforms, nonselective for Bacillus spp., nonselective for Listeria spp., nonselective for bacteria (General Media), nonselective for Enterococcus spp., nonselective for Staphylococcus spp. | suitability nonselective for Enterococcus spp., nonselective for Escherichia coli, nonselective for Salmonella spp., nonselective for Shigella spp., nonselective for Staphylococcus spp., nonselective for bacteria (General Media), nonselective for coliforms | suitability nonselective for Enterococcus spp., nonselective for Escherichia coli, nonselective for Salmonella spp., nonselective for Shigella spp., nonselective for Staphylococcus spp., nonselective for bacteria (General Media), nonselective for coliforms | suitability nonselective and differential for Candida spp., nonselective and differential for Escherichia coli, nonselective and differential for Lactobacillus spp., nonselective and differential for Pichia spp., nonselective and differential for Proteus spp., nonselective and differential for Saccharomyces spp., nonselective and differential for Zygosaccharomyces spp., nonselective and differential for bacteria (General Media), nonselective and differential for coliforms, nonselective and differential for molds (General Media), nonselective and differential for yeasts (General Media) |
| technique(s) microbiological culture: suitable | technique(s) microbiological culture: suitable | technique(s) microbiological culture: suitable | technique(s) microbiological culture: suitable |
| form powder | form powder | form powder | form powder |
| application(s) agriculture | application(s) agriculture | application(s) agriculture | application(s) bioburden testing |
| manufacturer/tradename NutriSelect® Plus | manufacturer/tradename NutriSelect® Basic | manufacturer/tradename NutriSelect® Plus | manufacturer/tradename NutriSelect® Plus |
| agency according to ISO 16266:2006 | agency according to ISO 16654:2001, according to ISO 19250:2010, according to ISO 6579-1:2017 | agency - | agency - |
General description
Nutrient medium is a general basic culture medium for less fastidious microorganisms. Meat extract, yeast extract and peptone provide nitrogen, vitamins, amino acids and carbon for growth. Sodium Chloride ensure osmotic balance. Thus, when adding blood, as supplement the blood cells will not rupture. Addition of 10% different biological fluids such as blood, serum and egg yolk makes it suitable for the cultivation of related fastidious organism. Acc. to Gray et al. the addition of 0.05% potassium tellurite makes the Nutrient medium an excellent enrichment medium for Listeria monocytogenes.
Application
- Nutrient Agar is used for the routine cultivation of microorganisms not requiring specific nutritional requirements
- It is also used for the enumeration and enrichment of bacteria
- Nutrient Agar can be used as a base for preparing special culture media.
Preparation Note
Suspend 28 g in 1 litre of distilled water. Bring to the boil to dissolve completely. Sterilize by autoclaving at 121°C for 15 minutes.
Other Notes
Studies on heterotrophic bacteria in some Argentine soils[1]
We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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