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Quality Standards
Sensory Index
| Items |
Requirements |
| Morphology |
Powder, no caking |
| Color |
Light yellow powder |
| Odor |
Endemic taste and odor of product, no other peculiar smell |
| Impurity |
No normal visible extraneous impurity |
Physicochemical
| Item |
Reagent Grade |
| 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 |
| Solubility (2% solution) |
Pellucid |
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Note: The physicochemical index is general specification but we can customize product according to the requirements of customer.
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Application
- Beef extract effectively compensates for the nutritional deficiencies of peptone and other common nitrogen sources in culture media.
- Rich in abundant peptides, amino acids and natural growth factors, providing comprehensive nutrients for microbial growth and metabolism.
- Widely applied in biological laboratories and large-scale microbial fermentation industries.
- Serves as a high-grade essential raw material to optimize cultivation efficiency and strain activity.
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Usage
⚗️
Fully dissolved and sterilized before use.
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Packaging
📦
Compound Paper Bag
25 kg / bag
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Cardboard Bucket
Standard bulk packaging
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Reagent-Grade Plastic Bottle
250 g / bottle — or customized measurement & OEM packaging available
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Frequently Asked Questions
Q
What is beef extract used for in microbiology?
Beef extract is widely used as a nitrogen source in culture media for biological laboratories and large-scale microbial fermentation industries. It supplies essential peptides, amino acids, and natural growth factors that support microbial growth and metabolism.
Q
What is the minimum total nitrogen content in this beef extract?
The reagent-grade beef extract contains a minimum total nitrogen content of ≥14.0% (on dry matter basis), ensuring a consistently high-quality nitrogen source for your applications.
Q
How should beef extract be prepared before use?
Beef extract should be fully dissolved in water and sterilized before use. This ensures product safety and maintains the integrity of your culture media or fermentation process.
Q
Can the physicochemical specifications be customized?
Yes. While the listed physicochemical index represents the general specification, we can customize the product formulation according to specific customer requirements, including adjustments to nitrogen levels, pH range, and other parameters.
Q
What packaging options are available for beef extract?
Beef extract is available in compound paper bags (25 kg/bag), cardboard buckets for bulk use, and 250 g plastic bottles for reagent-grade applications. Custom measurement packaging and OEM packaging are also available upon request.
Q
What are the key sensory characteristics of this beef extract?
The beef extract presents as a light yellow powder with no caking. It carries the endemic taste and odor characteristic of the product, with no other peculiar smell, and contains no visible extraneous impurities — ensuring consistent quality in every batch.
Hongrun Baoshun
