Abstract
The Growth Direct™ System that automates the incubation and reading of membrane filtration microbial counts on soybean-casein digest, Sabouraud dextrose, and R2A agar differs only from the traditional method in that micro-colonies on the membrane are counted using an advanced imaging system up to 50% earlier in the incubation. Based on the recommendations in USP <1223> Validation of New Microbiological Testing Methods, the system may be implemented in a microbiology laboratory after simple method verification and not a full method validation.
LAY ABSTRACT: The Growth Direct™ System that automates the incubation and reading of microbial counts on membranes on solid agar differs only from the traditional method in that micro-colonies on the membrane are counted using an advanced imaging system up to 50% earlier in the incubation time. Based on the recommendations in USP <1223> Validation of New Microbiological Testing Methods, the system may be implemented in a microbiology laboratory after simple method verification and not a full method validation.
- Automation
- Advanced imaging
- Membrane filtration
- Plate count
- Counting error
- Absorbed and emitted light
- Performance qualification
- Method verification
- © PDA, Inc. 2018
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