Buffered Peptone Water (BPW) 5kg

Pre-enrich food samples prior to the isolation of Salmonella species using Thermo Scientific™ Oxoid™ Buffered Peptone Water (Dehydrated). This non-selective pre-enrichment medium provides optimal conditions for the resuscitation of cells injured by food preservation processes.

Low numbers and/or sub-lethally injured Salmonella spp. cells may be present in test food samples. Pre-enrichment in Buffered Peptone Water allows these cells time to repair and multiply before being introduced into a selective culture, greatly improving recovery chances.

Key Benefits

• Supports high growth and recovery rate: Nutrient-rich composition promotes high resuscitation rates and intense growth.
• Helps recovery of damaged salmonellae: Phosphate buffer system prevents bacterial damage caused by pH changes.
• Proven performance: Research by Edel & Kampelmacher and Sadovski demonstrates superior recovery results compared to direct selection methods.
• Maintains optimal pH: Overcomes the low buffering capacity of certain food tissues, improving recovery from frozen vegetables and other products.

Background & Studies

Edel and Kampelmacher found that pre-enrichment in Buffered Peptone Water at 37°C for 18 hours before selection in Brilliant Green Tetrathionate Bile Broth provided superior recovery of sub-lethally injured salmonellae from contaminated meat.

Sadovski reported that lactose broth, when used as a pre-enrichment medium, caused a rapid drop in pH that harmed freeze-injured salmonellae in frozen vegetables. Buffered Peptone Water maintained a high pH for 24 hours, overcoming the low buffering capacity of vegetable tissue.

Note: Not all products are available for sale in all territories. Please inquire. Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

Specifications

• Description: Buffered Peptone Water
• Product Type: Pre-enrichment Medium
• Yield: For 250.0 L medium
• Form: Powder
• Quantity: 5 kg