Tryptone (T9410), a pancreatic digest of casein, is a rich source of amino acids, particularly tryptophan, and nitrogenous compounds. It is a key component in many standard media formulations, such as Lysogeny Broth (LB) and Tryptic Soy Broth (TSB). As part of the NutriSelect® Plus range, this product is manufactured under controlled conditions to ensure high batch-to-batch consistency and excellent growth-promoting properties. It is specifically processed to be free from detectable carbohydrates, making it suitable for studies on carbohydrate fermentation and indole production tests.
Advantages
- High Nutritional Value: Provides a broad spectrum of peptides and essential amino acids.
- Excellent Solubility: Formulated for rapid dissolution and high clarity, essential for optical density measurements.
- Indole Positive: High tryptophan content makes it ideal for indole testing and biochemical identification.
- NutriSelect® Plus Quality: Rigorous quality control ensuring consistency for biotechnology and research.
- Versatility: Suitable for the cultivation of bacteria, yeasts, and molds in various laboratory applications.
Technical specifications
| Catalogue number |
T9410 |
| Product name |
Tryptone from casein (NutriSelect® Plus) |
| Brand |
Sigma-Aldrich |
| Appearance |
White to beige powder |
| Solubility |
H2O: 20 mg/mL, clear, yellow to brownish |
| pH value |
6.5 – 7.5 (2% in water) |
| Total Nitrogen (N) |
12.0 – 14.0 % |
| Amino Nitrogen (N) |
3.5 – 5.5 % |
| Quality Level |
200 |
| Storage temperature |
15–30 °C |
Available packaging options
| Container Type |
Pack Size |
| Poly bottle |
250 g |
| Poly drum |
1 kg |
