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Published on: November 17, 2018
A simple and rapid method for extracting bacterial DNA from intestinal microflora for ERIC-PCR detection
Jin-Long Yang1, Ming-Shu Wang, An-Chun Cheng
1Avian Diseases Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Yaan 625014, Sichuan Province, China.
World Journal of Gastroenterology
|May 14, 2008
Summary
The Chelex method offers a simple, cost-effective way to extract genomic DNA from intestinal microflora for enterobacterial repetitive intergenic consensus (ERIC)-PCR analysis, yielding results comparable to commercial kits.
Area of Science:
- Microbiology
- Molecular Biology
- Genetics
Background:
- Accurate genomic DNA extraction from intestinal microflora is crucial for molecular detection methods like ERIC-PCR.
- Existing methods may be complex, costly, or time-consuming, necessitating simpler alternatives.
Purpose of the Study:
- To develop and evaluate a straightforward DNA extraction protocol for intestinal microflora.
- To assess the suitability of this method for subsequent ERIC-PCR analysis.
Main Methods:
- Comparison of five DNA extraction techniques (Tris-EDTA, Chelex-100, ultrapure water, SDS, Triton-100) against a commercial fecal DNA extraction kit.
- Evaluation based on DNA yield, purity, and ERIC-PCR performance.
Main Results:
- The Chelex-100 method demonstrated DNA yield and purity comparable to the commercial fecal DNA extraction kit.
- ERIC-PCR results using DNA extracted via the Chelex method closely mirrored those obtained with the gold standard kit.
Conclusions:
- The Chelex method is a recommended, simple, and cost-effective approach for genomic DNA extraction from intestinal microflora.
- This method is particularly advantageous for large-scale sample processing in ERIC-PCR experiments.
