Microbiology

Microbial testing, contamination control, sterility.

Antimicrobial Effectiveness Testing — USP <51> Method

How USP <51> evaluates whether a preservative system adequately controls microbial growth.

Bioburden Testing — Method and Acceptance Criteria

How bioburden testing quantifies microbial load before sterilization or on non-sterile products.

Environmental Monitoring — Viable and Non-Viable Particle Sampling

How viable and non-viable particle sampling work together in a cleanroom monitoring program.

Gowning Qualification — Personnel Aseptic Technique Assessment

How personnel are qualified on gowning technique before working in classified areas.

Media Fill Validation — Aseptic Process Simulation Requirements

What a media fill needs to cover to genuinely simulate and validate an aseptic filling process.

Microbial Identification — Phenotypic vs Genotypic Methods Comparison

How traditional phenotypic identification compares with genotypic methods for microbial isolates.

Objectionable Microorganisms — Risk Assessment for Non-Sterile Products

How to assess whether a detected organism poses a genuine risk in a non-sterile product.

Preservative Efficacy Testing — Method and Regulatory Requirements

How preservative efficacy is tested and what regional pharmacopeias expect for acceptance.

Rapid Microbiological Methods — Alternative to Traditional Culture-Based Testing

How rapid microbiological methods compare with traditional culture-based testing and where they add value.

Water System Microbial Monitoring — USP Requirements

What USP expects for routine microbial monitoring of purified water and WFI systems.