ALKALINE PEPTONE WATER (pH 9.0)

Alkaline Peptone Water is a pre-enrichment medium specially standardized for Vibrio species. The original formula of Alkaline Peptone Water was developed by Shread, Donovan and Lee to be used as an enrichment broth for the cultivation of Aeromonas species and Cruickshank reported that when the pH is increased, the medium can be used to cultivate Vibrio species. This medium is recommended by APHA for enrichment of Vibrio species from seafood, infectious materials and other Clinical samples like swabs and faeces in food and water samples can be added directly to the medium. A slight modification of this medium has recently been approved by the ISO Committee for detection of Vibrio species

for detection and enrichment of Vibrio species.