Detection of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae using the MALDI Biotyper Selective Testing of Antibiotic Resistance-β-Lactamase (MBT STAR-BL) assay

J Microbiol Methods. 2019 May:160:154-156. doi: 10.1016/j.mimet.2019.03.019. Epub 2019 Mar 20.

Abstract

The MALDI Biotyper Selective Testing of Antibiotic Resistance-β-Lactamase (MBT STAR-BL) assay, which analyzes bacterial induced hydrolysis of cefotaxime using MALDI-TOF MS, correctly identified 100.0% of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae as positive and 94.7% of non-ESBL producers as negative in 80 strains tested.

Keywords: Antibiotic resistance; ESBL; MALDI-TOF MS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cefotaxime / chemistry
  • Enterobacteriaceae Infections / microbiology*
  • Escherichia coli / isolation & purification*
  • Hospitals, University
  • Japan
  • Klebsiella pneumoniae / isolation & purification*
  • Mass Screening / methods
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods*
  • beta-Lactam Resistance*

Substances

  • Cefotaxime