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Merck
CN

A2715

Antibiotic assay medium No 19

NutriSelect® Plus, according to USP, FDA, powder, for Saccharomyces spp., pack of 500 g, suitable for microbiology

Synonym(s):

AAM 19

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About This Item

NACRES:
NA.85
UNSPSC Code:
41171504
Manufacturer/tradename:
NutriSelect® Plus
Agency:
according to USP
Ph:
6.1±0.2 (25 °C)
Form:
powder
Suitability:
Saccharomyces spp.
Application(s):
clinical testing
food and beverages, microbiology
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Quality Level

agency

according to USP

reg. compliance

FDA

sterility

non-sterile

product line

BioChemika

form

powder

shelf life

limited shelf life, expiry date on the label

packaging

pack of 500 g

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbe id | susceptibility testing: suitable, microbiological culture: suitable

pH

6.1±0.2 (25 °C)

application(s)

clinical testing
food and beverages, microbiology

suitability

Saccharomyces spp.

General description

Antibiotic Assay Medium No. 19 is designed for the microbiological assay of antibiotics. The medium contains essential components such as casein hydrolysate, which provides amino acids and peptides for microbial growth, dextrose serves as a carbon source for energy metabolism, phosphates are used to stabilize the pH, and agar acts as a solidifying agent in the medium for plate-based assays.

Application

Antibiotic Assay Medium No. 19 is widely used to determine antibiotic potency by measuring inhibition zones around test organisms. Suitable for clinical testing, food and beverage applications, and microbiology, this medium ensures reliable results in antibiotic susceptibility testing. Its high-quality formulation supports microbial growth and assay precision, making it a trusted choice for microbiological applications.

Features and Benefits

NutriSelect® Plus is a powdered culture media offering
  • Quality control with growth promotion test according to industry standards
  • Quality assurance acc. to ISO 9001
  • Cost-efficient powdered media

Preparation Note

Suspend 60.0 g of Antibiotic Assay Medium No. 19 in 1000 ml of distilled water. Heat to dissolve the medium completely. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 15 minutes.

Other Notes

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.

Legal Information

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

动植物来源培养基
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The United States Pharmacopeia/National Formulary USP XXIII/NF XVII
United States Pharmacopeia, USP XXIII/NF XVII (1990)

Protocols

Yeast culture techniques: Model systems for eukaryotic studies with liquid media or agar plate growth.

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