About Antibiotic Assay Medium No 40
Antibiotic Assay Medium No. 40 is a specialized culture medium used for the quantitative determination of antibiotic potency, particularly for the Thiostrepton antibiotic. It supports the growth of the test organism, Enterococcus hirae ATCC 10541, and is used in microbiological assays as per the United States Pharmacopoeia (USP). Here's a more detailed breakdown: Purpose:The medium is designed to facilitate the growth of the test organism, which is then used to measure the antibiotic's effectiveness through methods like agar diffusion or disc diffusion. Test Organism:It specifically uses Enterococcus hirae ATCC 10541 as the test organism for Thiostrepton assays. Application:The medium is used in pharmaceutical manufacturing and quality control for determining the potency of Thiostrepton. Procedure:The medium is used in accordance with USP standards, ensuring accurate and reliable results in the microbiological assay of Thiostrepton. Composition:The medium contains essentiReliable Antibiotic Potency DeterminationAntibiotic Assay Medium No. 40 supports accurate and reproducible determination of Thiostrepton potency through standardized microbiological assays. Its formulation follows USP guidelines, making it essential for quality control and regulatory compliance in laboratories analyzing antibiotics.
Optimized for Enterococcus hirae GrowthFormulated to foster robust growth of Enterococcus hirae ATCC 10541, this medium ensures consistent results in testing. The specialized composition allows scientists to confidently evaluate antibiotic concentrations, facilitating dependable data for research and industry needs.
FAQ's of Antibiotic Assay Medium No 40:
Q: How is Antibiotic Assay Medium No. 40 used in the laboratory?
A: It is primarily used in microbiological assays to quantify the potency of antibiotics like Thiostrepton. The powdered medium is reconstituted with distilled water, sterilized, and then inoculated with Enterococcus hirae ATCC 10541 for standardized potency determinations as per USP protocols.
Q: What are the main benefits of using this culture medium for antibiotic assays?
A: The medium ensures precise and reproducible results due to its standardized formulation. It is specifically developed to support the growth of the designated test organism, providing reliable data for pharmaceutical quality control and research.
Q: When should Antibiotic Assay Medium No. 40 be chosen over other media?
A: This medium is ideal when quantitative determination of Thiostrepton potency is required using microbiological methods, especially if regulatory compliance with the USP is needed. It is recommended for any laboratory or facility conducting such validated assays.
Q: Where can Antibiotic Assay Medium No. 40 be sourced?
A: It is available from manufacturers, exporters, distributors, and suppliers specializing in laboratory reagents and microbiological media. Enquiries can be made directly through authorized channels for bulk or research-scale orders worldwide.
Q: What is the typical process for preparing the medium before use?
A: Dissolve the required amount of powder in distilled water, followed by sterilization, typically by autoclaving at 121C for 15 minutes. Once cooled, the sterilized medium is ready for inoculation and assay setup.
Q: How should the medium be stored to maintain its quality?
A: The powder should be stored in a tightly sealed container at room temperature in a dry environment to preserve its efficacy and avoid contamination until it is ready for preparation.
Q: Which antibiotic and test organism are most suitable for this medium?
A: Antibiotic Assay Medium No. 40 is optimized for Thiostrepton potency testing using the test organism Enterococcus hirae ATCC 10541, as specified by the USP for assay standardization.