Related Experiment Video
Updated: Jan 27, 2026

Fast Colony Forming Unit Counting in 96-Well Plate Format Applied to the Drosophila Microbiome
Published on: January 13, 2023
Replicate Counting Errors by Analysts and Bacterial Colony Counters
J T Peeler1, J E Leslie1, J W Danielson1
1Department of Health and Human Services, Public Health Service, Food and Drug Administration, Division of Microbiology, Cincinnati, Ohio 45226 and Food and Drug Administration, Minneapolis Center for Microbiological Investigations, Minneapolis, Minnesota 55401.
Abstract:
Replicate counting errors were computed when a plate of a sample of pasteurized milk was counted twice by one analyst and twice by two analysts. The results were used to make recommendations for revising methods for the determination of bacterial counts of milk in Standard Methods for the Examination of Dairy Products and to evaluate the counting accuracy of four bacterial colony counters used to enumerate the aerobic plate count of 14 food products.
Related Concept Videos
Chromosome Replication
Systematic Error: Methodological and Sampling Errors
Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
Fundamental Attribution Error
DNA Replication
Replication in Prokaryotes
DNA replication...
Replication in Prokaryotes
Replication in Eukaryotes

