Psychrophilic Count Agar – 250g | Dairy Cold-Tolerant Microbe Testing

Accurate Cold-Chain Microbe Detection for Dairy Safety

Psychrophilic Count Agar is a specialized medium for enumerating cold-tolerant microorganisms in dairy products. Its unique formulation with skim milk powder ensures reliable recovery of psychrotrophic bacteria critical for refrigerated product quality control.

Key Applications:

– Total psychrotroph counts in raw/pasteurized milk

– Shelf-life prediction of yogurt, cheese & butter

– Cold storage facility sanitation monitoring

– Ice cream quality control

– Dairy processing equipment biofilm detection

Technical Specifications:

– Formula (per liter):

– Tryptone: 5.0g

– Yeast Extract: 2.5g

– Dextrose: 1.0g

– Skimmed Milk Powder: 1.0g

– Agar: 15.0g

– pH: 7.0 ± 0.2 (25°C)

– Packaging: 250g/bottle

– Storage: Room temperature (15-25°C)

– Shelf Life: 3 years

Preparation Protocol:

1. Suspend 24.5g in 1L distilled water

2. Boil with stirring until fully dissolved (≤5 min)

3. Autoclave at 121°C for 15 minutes

4. Swirl during cooling to prevent settling

For best results: Pre-chill plates to 4-7°C before use

Quality Notes:

– Low background contamination

– Batch-specific consistency testing

– Optimal for ISO 13366-1 compliant testing