Illustrative image only. Actual product may vary.ProCel 251 MG
Premium organic nitrogen and growth-factor source for industrial and biopharmaceutical fermentation media. Recommended for the production of therapeutic proteins, hormones, insulin, vaccines and antibiotics by recombinant and non-recombinant microorganisms, including E. coli, yeasts and actinomycetes. Its high solubility ensures fast, consistent media preparation and supports efficient downstream processing.
- Category
- Peptones & Protein Hydrolysates
- pH (25 °C)
- 6.8 – 7.2
- Appearance
- Powder
- Pack sizes
- 500 g · 5 kg · 25 kg
- Raw material
- Yeast
Data updated：2026-11-06
- Storage
- Store in the original sealed packaging in a dry place at cool to ambient temperature, protected from direct sunlight. Hygroscopic: reseal the container tightly after each use.
- Shelf life
- 3 years
Overview
Primary yeast extract produced by controlled autolysis of a selected yeast strain cultivated on a molasses-based medium. A highly soluble powder providing a balanced source of free amino acids, peptides, vitamins and essential trace elements, with a tightly controlled near-neutral pH and very low sodium chloride. Guaranteed non-GM and free of ingredients of animal origin.
Specifications
| Parameter | Specification |
|---|---|
| Appearance | Powder |
| Solubility | Readily soluble in water |
| Dry matter | ≥ 94.0 % |
| Total nitrogen (TN) | ≥ 10.00 % |
| Amino nitrogen (AN) | ≥ 4.50 % |
| Protein (N × 6.25) | ≥ 62.5 % |
| Ash | ≤ 18.0 % |
| Sodium chloride (NaCl) | ≤ 0.5 % |
| pH | 6.8 – 7.2 |
| Total mesophilic aerobic count | ≤ 5,000 CFU/g |
| Total coliforms | ≤ 5 CFU/g |
| Yeasts | ≤ 50 CFU/g |
| Moulds | ≤ 50 CFU/g |
| Escherichia coli | Negative |
Release specifications. Actual values are reported on the COA supplied with each batch.
Product highlights
- Non-GMO, Animal-origin-free (AOF)
- Available in 500 g / 5 kg / 25 kg, from laboratory to industrial scale
- COA, specification sheet, and technical data sheet available; samples on request
- Manufactured in Taiwan with reliable supply
Frequently asked questions
01Which organisms is it suitable for?
E. coli, Yeast, Actinomycetes. See the cultural response table and the specification sheet.
02Is it free of animal-derived components?
Yes. This product is animal-origin-free, suitable for animal-free formulations and Halal requirements; a declaration is available on request.
03Is the raw material non-GMO?
Yes. The raw material is non-GMO; the supplier declaration can be provided with the COA.
04How should it be stored, and what is the shelf life?
Store in the original sealed packaging in a dry place at cool to ambient temperature, protected from direct sunlight. Hygroscopic: reseal the container tightly after each use. 3 years
05How do I request a bulk quotation, and can you provide a COA?
Yes. This product is available in 500 g, 5 kg, 25 kg. Tell us your application and volume when requesting a quotation; we reply within one working day and can supply the COA, specification sheet, and technical data sheet.