Key Features
- Designed for microbiological determination of nicotinic acid (vitamin B3)
- Suitable for vitamin assay and microbiological testing
- Powder culture medium for laboratory preparation
- Stable formulation with long shelf life
- 250g laboratory package
- Storage at room temperature
Applications
- Determination of nicotinic acid (niacin)
- Vitamin B3 microbiological assay
- Food and nutrition laboratory testing
- Quality control laboratories
- Microbiology research and vitamin analysis
Medium Composition
Composition (per liter)
Vitamin Assay Casamino Acids — 12.0 g
Glucose — 40.0 g
L-Cystine — 0.4 g
Sodium Acetate — 20.0 g
DL-Tryptophan — 0.2 g
Adenine Sulfate — 20 mg
Guanine Hydrochloride — 20 mg
Uracil — 20 mg
Thiamine Hydrochloride — 200 µg
Riboflavin — 400 µg
Biotin — 0.8 µg
Calcium Pantothenate — 200 µg
Pyridoxine Hydrochloride — 400 µg
p-Aminobenzoic Acid — 100 µg
Dipotassium Phosphate — 1.0 g
Potassium Dihydrogen Phosphate — 1.0 g
Magnesium Sulfate — 0.4 g
Sodium Chloride — 20 mg
Ferrous Sulfate — 20 mg
Manganese Sulfate — 20 mg
Final pH: 6.7 ± 0.2 (25°C)
Directions for Use
- Weigh 7.51 g of the medium.
- Dissolve in 100 ml distilled or deionized water.
- Heat to boiling until completely dissolved.
- Dispense 5 ml per test tube.
- Use according to standard laboratory procedures for nicotinic acid determination.
Note:
This product is hygroscopic and may absorb moisture during storage.
Specification
| Item | Description |
|---|---|
| Product Name | Nicotinic Acid Assay Medium |
| Synonym | Niacin Assay Medium |
| Format | Powder |
| Package | 250 g / bottle |
| Storage | Room temperature |
| Shelf Life | 3 years |
| Application | Vitamin B3 determination |