Soy Extracts
1 / 5
Beef extract powder is a purified extract of bovine meat, manufactured under strict quality standards. It is primarily used in conjunction with meat and casein peptones as a premium source of nitrogen, amino acids, and essential nutrients in microbiological culture media.
No. Raw material sources and varying storage conditions can cause subtle color differences, which is entirely normal. All products undergo rigorous chemical, sensory, and biological verification before release to ensure performance parameters comply with strict enterprise standards.
This typically occurs when hydration during prep is incomplete (i.e. the agar was not boiled sufficiently to dissolve completely). Because agar has a higher density, it can settle at the bottom of the bottle. If not shaken thoroughly after autoclaving, it results in uneven agar distribution and poor setting.
Chromogenic media target the specific β-glucuronidase enzyme found in approximately 94% of E. coli strains, producing blue-green colonies. However, around 6% of E. coli strains (including O157:H7) lack this enzyme, resulting in false negatives on chromogenic media. Alternative diagnostic methods should be used to confirm these strains.
It should be stored in dry, well-ventilated areas at temperatures between 2°C to 30°C. Ensure the container is kept tightly sealed after opening to prevent moisture absorption and caking.
Yes. Due to its high concentration of organic nitrogen, vitamins, and minerals, it is widely utilized for both laboratory culture media preparation and large-scale industrial fermentation applications.
Typically, the product maintains its chemical and biological stability for up to 3 years from the date of manufacture, provided it remains sealed in its original container and stored in a cool, dry place.
