[Development of single base extension-tags microarray for the detection of food-borne pathogens]

Sheng Wu Gong Cheng Xue Bao. 2009 Apr;25(4):554-9.
[Article in Chinese]

Abstract

We developed single base extension-tags (SBE-tags) microarray to detect eight common food-borne pathogens, including Staphylococcus aureus, Vibrio parahaemolyticus, Listeria monocytogenes, Salmonella, Enterobacter sakazaki, Shigella, Escherichia coli O157:H7 and Campylobacter jejuni. With specific PCR primers identified and integrated for eight food-borne pathogens, target sequences were amplified and purified as template DNA of single base extension-tags reaction. The products were hybridized to microarrays and scanned for fluorescence intensity. The experiment showed a specific and simultaneous detection of eight food-borne pathogens. The system limits is 0.1 pg for a genomic DNA and 5x10(2) CFU/mL for Salmonella typhimurium cultures. The single base extension-tags assay can be used to detect food-borne pathogens rapidly and accurately with a high sensitivity, and provide an efficient way for diagnosis and control of disease caused by food-borne pathogens.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Food Contamination / analysis
  • Food Microbiology*
  • Humans
  • Listeria monocytogenes / isolation & purification*
  • Oligonucleotide Array Sequence Analysis / methods*
  • Salmonella typhimurium / isolation & purification*
  • Staphylococcus aureus / isolation & purification*
  • Vibrio parahaemolyticus / isolation & purification