Frequently Asked Questions
Q
What is beef extract and what is it used for in microbiology?
Beef extract is a concentrated source of peptides, amino acids, and natural growth factors derived from beef. It is widely used in biological laboratories and large-scale microbial fermentation industries as a high-grade nitrogen source to support microbial growth, metabolism, and cultivation efficiency.
Q
What are the key physicochemical specifications of this beef extract?
The key specifications include: Total Nitrogen (on DM) ≥14.0%, Amino Nitrogen (on DM) ≥2.5%, Ash (on DM) ≤13%, Moisture ≤6.0%, pH (2% solution) 4.5–7.0, and Solubility (2% solution) is pellucid. These are general reagent-grade standards and can be customized upon request.
Q
Can the product specifications be customized to meet specific requirements?
Yes. While the physicochemical index represents a general specification, we are able to customize the product according to individual customer requirements. Please contact us to discuss your specific needs.
Q
How should beef extract be prepared before use?
Beef extract should be fully dissolved in the appropriate solvent and sterilized prior to use in culture media or fermentation applications to ensure safety and optimal performance.
Q
What packaging options are available for beef extract?
Beef extract is available in Compound Paper Bags (25kg/bag) or Cardboard Buckets for bulk use. Reagent-grade products are packaged in 250g plastic bottles. Custom packaging and OEM packaging are also available to meet specific customer measurement requirements.
Q
How does beef extract differ from peptone as a nitrogen source?
Beef extract effectively compensates for the nutritional deficiencies of peptone and other common nitrogen sources. It provides a broader spectrum of nutrients including peptides, amino acids, and natural growth factors, making it a more comprehensive supplement for microbial culture media and fermentation processes.