Nanopore Sequencing for Identifying Cronobacter in Infant Formula
Author Information
Author(s): Gonzalez-Escalona Narjol, Kwon Hee Jin, Chen Yi
Primary Institution: Food & Drug Administration
Hypothesis
Can ONT sequencing recover completely closed Cronobacter genomes from powdered infant formula overnight enrichments?
Conclusion
ONT sequencing can accurately identify and close the genomes of Cronobacter strains from powdered infant formula in just 3 days, significantly faster than traditional methods.
Supporting Evidence
- ONT sequencing can recover complete genomes of Cronobacter strains in 3 days.
- Traditional methods take nearly 2 weeks for genome recovery.
- High levels of Cronobacter (107 to 109 CFU/mL) were achieved in overnight enrichments.
Takeaway
This study shows that a special type of DNA reading can quickly find and understand germs in baby formula, helping keep babies safe.
Methodology
The study used ONT sequencing and qPCR to analyze 10 powdered infant formula samples inoculated with different Cronobacter strains.
Limitations
The study is limited to a small sample size and may not represent all Cronobacter strains in various environments.
Digital Object Identifier (DOI)
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