Understanding Cannabis Testing

Microbial Screening

Microbial Screening


Clinical Labs of Hawaii has nearly 5 decades of experience with microbiology testing and is the primary microbiology lab for 11 hospitals in Hawaii. With access to this experience, Aeos Labs is extremely capable of detecting and identifying harmful microbes by leveraging both advanced plate assay methods and state-of-the-art matrix assisted laser desorption/ionization-time of flight (MALDI-TOF) automation. For mycotoxins analysis, ultra high performance liquid chromatography with triple quadrupole mass spectrometry (UHPLC-MS/MS) is employed.

The following is a list of microbial organisms that are detected, and the allowable limits:

Impurity Unprocessed and Processed Materials Solvent Based Extracts
Total Viable Aeorbic Bacteria 105 Cfu/g 104 Cfu/g
Total Yeast and Mold 104 Cfu/g 103 Cfu/g
Total Coliforms 103 Cfu/g 102 Cfu/g
Bile-tolerant Gram Negative Bacteria 103 Cfu/g 102 Cfu/g
Impurity Limit
E. coli (pathogenic strains) Not detected in 1 g
Salmonella spp. Not detected in 1 g
Aspergillus fumigatus < 1 Cfu/g
Aspergillus flavus < 1 Cfu/g
Aspergillus niger < 1 Cfu/g
Mycotoxins < 20 µg of any mycotoxin per kg of material
ppm = parts per million
µg = microgram