Description
Product Overview
CryoKing Tryptone Powder is a premium natural protein derived from the pancreatic digestion of fresh beef and beef bones. The resulting light‑yellow powder exhibits exceptional solubility, transparency, and a lack of precipitate, making it an ideal nitrogen‑amino source for a wide range of microbiological media. Each 500 g bottle meets the stringent FMB Grade standard, guaranteeing batch‑to‑batch consistency, low endotoxin levels, and reliable performance in sensitive laboratory applications. The product is formulated to remain stable across a pH range of 5.0 to 7.0, allowing seamless integration into both aerobic and anaerobic culture systems. Its physical properties—fine particle size, uniform texture, and rapid dissolution—reduce preparation time and minimize variability in experimental outcomes.
![[Product front view showing all components]](https://www.dilvora.store/wp-content/uploads/2026/07/2657ed9cc5dd47b993921df3a0d3b320.jpg)
Usage
This tryptone is versatile and can be incorporated into a variety of media formulations, including nutrient broth, minimal salts media, selective agar plates, and specialized enrichment broths. Researchers preparing bacterial growth media for Escherichia coli, Bacillus subtilis, or other laboratory strains will find the consistent amino acid profile essential for reproducible growth kinetics. The powder also supports the preparation of anaerobic culture media, where its stability at lower pH values helps maintain redox potential. In addition to routine culture, the product is suitable for biochemical testing kits, enzyme assays, and protein expression studies where a defined nitrogen source is required. Storage at 2‑30 °C protects the integrity of the amino acid composition, ensuring long‑term usability.
Why Choose Us
CryoKing has a reputation for delivering high‑quality life‑science reagents backed by rigorous quality control. Our Tryptone Powder undergoes multiple analytical checks, including amino acid profiling, moisture content, and microbial contamination testing, to meet or exceed industry standards. The FMB Grade certification reflects our commitment to purity, low endotoxin levels, and consistent performance, which is critical for reproducible scientific research. Moreover, our dedicated technical support team provides formulation guidance, troubleshooting assistance, and rapid response to inquiries, ensuring that customers can maximize the value of the product in their workflows. With a track record of reliability and a focus on customer satisfaction, CryoKing stands out as a trusted partner for laboratory reagents.
Key Features
- High solubility ensures quick preparation and clear media without cloudiness.
- FMB Grade guarantees low endotoxin levels and batch‑to‑batch consistency.
- Broad pH stability (5‑7) supports both aerobic and anaerobic culture conditions.
- Rich nitrogen and amino acid profile promotes robust bacterial growth and reliable assay results.
- Responsive technical support and detailed usage guidelines for optimal application.
FAQ
What is the difference between casein tryptone and other peptones?
Casein tryptone is derived specifically from the enzymatic digestion of casein, providing a distinct amino acid composition rich in essential residues. This results in superior growth support for many bacterial strains compared to generic peptones, which may have variable source materials.
Can this tryptone be used for eukaryotic cell culture?
While primarily formulated for bacterial media, the high purity and defined amino acid content make it suitable for certain eukaryotic cell culture applications where a defined nitrogen source is required, provided that the formulation is compatible with the cell line’s specific nutritional needs.
How should the powder be stored to maintain its quality?
Store the product in a cool, dry place at temperatures between 2 °C and 30 °C. Keep the container tightly sealed to prevent moisture absorption, which could affect solubility and stability.
Is the product free from common contaminants such as endotoxins?
Yes, the FMB Grade certification includes testing for low endotoxin levels, ensuring that the powder is suitable for sensitive applications where contamination could impact experimental outcomes.
What media formulations benefit most from using this tryptone?
Media such as Luria‑Bertani broth, minimal salts media, selective agar plates, and anaerobic enrichment broths all benefit from the consistent nitrogen source and solubility provided by CryoKing Tryptone Powder.






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