Plate Count Agar - Quantitative Microbiology Reference

Plate Count Agar (Standard Methods Agar) provides standardized low-nutrient formulation for accurate enumeration of mesophilic aerobic bacteria. Yeast extract supplementation supports dairy organisms while tryptone/pancreatic digest of casein provide balanced nitrogen sources without overstimulation of stressed environmental isolates.

Regulatory Compliance Applications

1. Food Safety: APC (Aerobic Plate Count) per FDA-BAM, ISO 4833 standards.

2. Dairy Testing: Raw milk quality assessment per standard methods.

3. Water Analysis: Heterotrophic plate count per EPA methods.

4. Pharmaceutical: Environmental monitoring cleanroom validation.

Technical Specifications

19mm x 15mm x 20ml plates (Cat. 0801300E), 10 pcs/stack. SFDA compliant, ISO 13485 manufactured. pH 7.0±0.2 optimal for stressed organisms.

QC: Bacillus subtilis ATCC 6633, Escherichia coli ATCC 25922.

Quantitative Protocol

Serial dilutions, 0.1ml spread plate or pour plate technique. Incubate 35°C, 48h (food) or 20-22°C, 72h (water). Count 25-250 colonies per plate for statistical validity.