Standard I Nutrient Agar – 250g | General-Purpose Bacterial Culture

Premium General-Purpose Medium for Robust Bacterial Growth

Standard I Nutrient Agar provides balanced nutrition for diverse bacterial cultivation needs. With elevated peptone content and optimized salt balance, it delivers superior colony development for routine microbiology workflows.

Key Applications:

– Daily quality control strain maintenance

– Environmental monitoring surface testing

– Educational laboratory exercises

– Water and food sample screening

– Pharmaceutical facility bioburden testing

Critical Advantages:

✓ Enhanced Nutrient Profile – 15g/L peptones for vigorous growth

✓ Universal Compatibility – Supports Gram-positive & Gram-negative bacteria

✓ Stable Gel Formation – 12g/L agar ensures smooth pouring

✓ Rapid Preparation – Dissolves in ≤7 minutes with boiling

✓ ISO-Compliant – Meets general bacteriology standards

Formula Composition (per liter):

– Peptones: 15.0g

– Yeast Extract: 3.0g

– Sodium Chloride: 6.0g

– D(+)Glucose: 1.0g

– Agar: 12.0g

– Final pH: 7.5 ± 0.2 (25°C)

Preparation Protocol:

1. Suspend 37.0g* in 1L distilled water

2. Boil with continuous stirring for complete dissolution

3. Autoclave at 121°C for 15 minutes

4. Cool to 45-50°C before pouring plates

*Calculated from formula total: 15+3+6+1+12=37g/L

Quality Validation:

– Growth promotion tested with E. coli & S. aureus

– Batch-specific gel strength certification

– Low background contamination

Store sealed at 10-30°C. Shelf life: 36 months.