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A novel method for rapid detection of class IIa bacteriocin-producing lactic acid bacteria

  • Huaxi Yi
  • , Lanwei Zhang*
  • , Yanfeng Tuo
  • , Xue Han
  • , Ming Du
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Gansu Agricultural University

Research output: Contribution to journalArticlepeer-review

Abstract

A method based on colony PCR was developed for rapid screening of class IIa bacteriocin-producing lactic acid bacteria. The principle of the method is to detect the presence of bacteriocin gene by using specific degenerate primers to amplify a 3 kb fragment from bacteriocin structural gene to histidine kinase gene regions. Degenerate primers were designed according to the conserved amino acid sequences (YGNGVXCXXXXCXV and LDNAIE) contained in class IIa bacteriocins. This assay showed agreement with the conventional well-diffusion method. These findings indicate that the method proposed in this study is considerably more rapid and sufficient for screening of class IIa bacteriocin-producing bacterial isolates in environmental samples. Crown

Original languageEnglish
Pages (from-to)426-430
Number of pages5
JournalFood Control
Volume21
Issue number4
DOIs
StatePublished - Apr 2010

Keywords

  • Class IIa bacteriocin
  • Colony PCR
  • Lactic acid bacteria

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