BUFFERED PEPTONE WATER (as per BIS)

Buffered Peptone Water is a non-selective pre-enrichment medium for the isolation for the Salmonella species from food and associated samples. The medium is designed to be used prior to selective enrichment. As Salmonella may be present in low number or sub-lethally injured, pre-enrichment allows cells to repair and multiply before being introduced to selective culture, thereby improving the chances of recovery from sample. This pre-enrichment medium is free from inhibitors, is well buffered and provides conditions for resuscitation of the cells that have been injured by processes of food preservation. The composition and performance criteria of this medium are as per the applications laid down in IS : 5887 (Part III) 1999, reaffirmed 2005)

for pre-enrichment of injured Salmonella species prior to selective enrichment and isolation.