Alkaline Peptone Water is a broth medium for the enrichment of Vibrio species from food, water, and clinical samples. Alkaline Peptone Water is a modification of peptone water with the pH adjusted to 8.4. Peptone provides nitrogen and carbon source, long-chain amino acids, vitamins, and other essential nutrients.
The 1.0 % (w/v) sodium chloride incorporated in this medium promotes the growth of Vibrio cholerae, while the alkalinity of this medium inhibits most of the unwanted background flora.
The Alkaline Peptone Water medium can be used to effectively cultivate Vibrio species. It is a suitable enrichment broth for this purpose.
Use: Recommended for the enrichment of Vibrio species from food, water, and clinical and non-clinical samples and for biochemical identification of a pure culture.