Dextrose Agar is a general-purpose medium that provides a robust nutrient base. It contains Tryptone and Meat Peptone, which supply the essential nitrogen, amino acids, and vitamins required for bacterial and fungal proliferation. Dextrose (Glucose) is included at a high concentration to serve as a readily available energy source, stimulating rapid growth and enhancing the recovery of stressed organisms. Sodium Chloride maintains the osmotic equilibrium of the medium. Due to its simple yet effective composition, it is often used as a base for the preparation of specialized media by adding blood, antibiotics, or other supplements. It is also an excellent choice for the cultivation of microorganisms that require a high carbohydrate environment to express specific metabolic traits.
Advantages
- Growth Enhancement: The high dextrose content promotes vigorous growth of many species that might grow poorly on standard nutrient agar.
- Versatility: Suitable for the cultivation of both bacteria and fungi, making it a multipurpose tool in the lab.
- Base for Supplementation: Can be easily enriched with 5-10% blood to support the growth of fastidious pathogens like Streptococcus species.
- High Recovery: Ideal for the recovery of microorganisms from environmental or clinical samples where cells may be in a state of metabolic stress.
- Standardized Nutrient Profile: Ensures reproducible results in routine laboratory procedures and quality control testing.
Technical specifications
| Catalogue number |
1021 |
| Brand |
Condalab |
| Application |
General cultivation of bacteria and fungi |
| Typical Composition (g/L) |
Tryptone (5.0); Meat Peptone (5.0); D-Glucose (Dextrose) (10.0); Sodium Chloride (5.0); Bacteriological Agar (15.0) |
| Final pH (at 25 °C) |
7.3 ± 0.2 |
| Preparation |
43.0 g/L |
| Storage Temperature |
2 – 25 °C |
Available packaging options
| 1021 |
500 g plastic bottle |
