The following standardized methods are employed for microbiology testing:

USP <2021> – Microbial Enumeration Tests for Nutritional and Dietary Supplements

  • Total aerobic microbial count
  • Total combined molds and yeasts count
  • Enterobacterial (bile-tolerant gram-negative bacteria) count

USP <2022> – Microbiological Procedures for Absence of Specific Microorganisms for Nutritional and Dietary Supplements

  • Staphylococcus aureus
  • Salmonella species
  • Escherichia coli (E. coli)
  • Clostridium species

USP <2023> – Microbiological Attributes of Nonsterile Nutritional and Dietary Supplements

  • Microbial contamination

Our list of microbiological testing capabilities for NHP includes:

Aerobic Plate Count USP, MFHPB
Yeast and Mold Count USP
Coliforms, E.coli USP, MFHPB
Staphylococcus aureus USP, MFHPB
Salmonella spp. USP, MFHPB
Pseudomonas aeruginosa USP, MFLP
Bacillus cereus MFLP
Clostridium perfringens USP, MFHPB
Lactic Acid Bacteria-Probiotic Count USP
Enterobacteria Count USP, MFLP
Listeria monocytogenes MFHPB
Thermophilic and Psychrotrophic Bacteria Count USP
Vitamin B12 Microassay using Lactobacillus leichmanni USP
Antimicrobial Effectiveness Testing USP