
SM Agar (Skim Milk Agar) – Dairy-Specific Microbial Enumeration Medium (500g)
Milk-Based SM Agar for Accurate Dairy Product Microbial Analysis
Formulated with 28.0g/L skim milk powder to simulate dairy matrices, this specialized agar enables reliable enumeration and cultivation of microorganisms in milk, cheese, yogurt, and other dairy products. The combination of tryptone (5.0g/L) and yeast extract (2.5g/L) supports robust growth while maintaining pH stability at 7.0±0.2 for ISO-compliant testing.
Key Applications:
🥛 Dairy QC: Total microbial counts in raw/pasteurized milk
🧀 Fermented Products: Yeast/mold detection in yogurt and cheese
🏭 Processing Plants: Environmental monitoring in dairy facilities
📊 Regulatory Testing: Meets ISO 4833 and FDA BAM standards
Technical Advantages:
✅ Matrix Simulation: 28.0g/L skim milk powder mimics dairy environment
✅ Nutrient-Optimized: 5.0g/L tryptone for enhanced recovery
✅ Low-Carbon Design: 1.0g/L glucose prevents overgrowth
✅ Ready-to-Prepare: 51.5g/L standardized concentration
Critical Preparation Notes:
Boil ≥1 minute to ensure complete dissolution
Shake vigorously post-sterilization to prevent sedimentation
Pour at 45-50°C for optimal plate consistency
Complete Formulation (Per Liter):
Skim Milk Powder: 28.0g
Tryptone: 5.0g
Yeast Extract: 2.5g
Dextrose: 1.0g
Agar: 15.0g