Wholesale Tryptone (Casein) Suppliers in China - High-Quality Pancreatin Digest for Culture Medium from Factory Factories, Factory

Tryptone, also known as pancreatic digest of casein, is a high-quality nutrient specifically designed for applications in culture media requiring casein pancreatin or trypsin hydrolysate. This fine light yellow powder is derived from premium casein, a nutritious protein obtained from fresh milk through advanced purification, enzymatic hydrolysis, and refined filtration methods. Rich in free amino acids, particularly tryptophan, Tryptone offers a well-balanced nutritional profile with stable physical and chemical properties, As a vital nitrogen source, Tryptone effectively supports microbial growth and metabolic reproduction, making it an essential ingredient in crafting various microbial culture media. Widely utilized in biological fermentation, biopharmaceuticals, microbiological testing, and laboratory research, it plays a critical role in bacterial culture, strain isolation, and microbial cultivation across diverse industrial and scientific applications, As esteemed suppliers in China, we ensure that our factory consistently delivers top-notch Tryptone, meeting the varied nutritional demands of researchers and industries alike. Discover the indispensable qualities of Tryptone for your microbiological needs today

Product Description

Quality Standards
Sensory Index
Items Requirements
Morphology Powder, no caking
Color Light yellow or milky white powder
Odor Endemic taste and odor of product, no other peculiar smell
Impurity No normal visible extraneous impurity
Physicochemical Index
Item Pharmaceutical Grade Reagent Grade
Total nitrogen (on DM) % ≥8.0% ≥12.0%
Amino nitrogen (on DM) % ≥2.5% ≥3.0%
Ash (on DM) % ≤10.0% ≤10.0%
Moisture % ≤6.0% ≤6.0%
PH (2% solution) 5.0–8.0
Acid solution & alkalescence high-pressure Pellucid
Solubility (2% solution) Pellucid
The physicochemical index is general specification but we can customize product according to the requirements of customer.
Application

This premium tryptone (casein) serves as a key component of casein tryptone media for microbial sterility testing. In industrial fermentation, it acts as an essential nitrogen source to support microbial growth and metabolism. It is widely used in producing antibiotics, extracellular proteins, interferon and diphtheria toxoid. With rich amino acids and stable properties, it optimizes culture conditions, boosts strain activity and ensures steady quality in biopharmaceutical production.

🧫 Microbial Sterility Testing
⚗️ Industrial Fermentation
💊 Antibiotics Production
🧬 Interferon & Proteins
🏭 Biopharmaceutical Production
Usage
🔬
Fully dissolved and sterilized before use.
Packaging
📦
Compound Paper Bag with 25kg/bag or Cardboard Bucket. Reagent-grade products are packaged with 250g plastic bottle (or be packed according to the measurement requirements of customer and OEM Package as well).
Frequently Asked Questions (FAQ)
What is tryptone (casein) and what is it derived from?
Tryptone (casein) is a hydrolysate derived from casein, the primary protein found in milk. It is produced through enzymatic digestion and provides a rich source of peptides and amino acids essential for microbial growth and fermentation processes.
What are the main differences between pharmaceutical grade and reagent grade tryptone?
The reagent grade has a higher total nitrogen content (≥12.0% vs ≥8.0%) and higher amino nitrogen content (≥3.0% vs ≥2.5%) compared to pharmaceutical grade. Reagent grade also requires pellucid solubility and acid/alkalescence clarity, while pharmaceutical grade specifies a pH range of 5.0–8.0 for a 2% solution.
Can the product specifications be customized to meet specific requirements?
Yes. While the physicochemical index represents our general specification, we offer customization of product parameters to meet individual customer requirements. OEM packaging is also available upon request.
How should tryptone (casein) be prepared before use?
The product must be fully dissolved in the appropriate solvent and then sterilized prior to use. This ensures optimal performance and prevents contamination in culture media and fermentation applications.
What packaging options are available for this product?
Standard packaging includes compound paper bags at 25kg per bag or cardboard buckets for bulk quantities. Reagent-grade products are available in 250g plastic bottles. Custom packaging sizes and OEM packaging can also be arranged based on customer needs.
In which biopharmaceutical applications is tryptone (casein) commonly used?
Tryptone (casein) is widely used in the production of antibiotics, extracellular proteins, interferon, and diphtheria toxoid. It is also a critical component in casein tryptone culture media for microbial sterility testing and serves as a nitrogen source in industrial fermentation to support microbial growth and metabolism.

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