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

Precise Cold-Chain Microbe Detection for Dairy Safety

Psychrophilic Count Agar is a specialized medium formulated for accurate enumeration of cold-tolerant microorganisms in dairy products. With optimized nutrients and skim milk powder, it 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 and frozen dessert quality control

– Dairy processing equipment biofilm detection

Product Advantages:

✓ Temperature-Adapted Formulation – Supports 7°C incubation

✓ Dairy Matrix Simulation – Skim milk enhances stress recovery

✓ High Clarity Gel – Easy colony differentiation

✓ Rapid Dissolution – Ready in ≤10 minutes preparation

✓ ISO-Compliant – Meets IDF/ISO dairy standards

Formula Composition (per liter):

– Tryptone: 5.0g

– Yeast Extract: 2.5g

– Dextrose: 1.0g

– Skimmed Milk Powder: 1.0g

– Agar: 15.0g

– Final pH: 7.0 ± 0.2 (25°C)

Preparation Protocol:

1. Suspend 24.5g in 1L distilled water

2. Boil with continuous stirring for full dissolution (≤5 min)

3. Autoclave at 121°C for 15 minutes

4. Swirl during cooling to prevent settling

Use pre-chilled plates at 4-7°C for optimal results

Quality Verification:

– Growth promotion tested with Pseudomonas fluorescens

– Batch-specific sterility certification

– Low background contamination

Store in dry conditions below 30°C. Shelf life: 18 months.