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期刊论文
A simple and sensitive method to extract bacterial, yeast and fungal DNA from blood culture material
Journal of Microbiological Methods 42(2000)139-147,-0001,():
This study investigated the various commercially available kits and 'in-house' methods to extract DNA from Gramnegative and Gram-positive bacteria, yeast and fungal agents in commonly employed blood culture material. The main methods investigated were as follows; Qiagen QIAmp Blood kit, Roche high PCR template preparation kit, Puregene DNA extraction kit, boiling, glass beads/sonication and wash/ alkali/heat lysis. The results indicated that a simple wash/alkali/heat lysis method was the most sensitive, reproducible, simple and cost-effective extraction method. This was the only method which removed any PCR inhibitors and inherent DNA which existed in virgin BacT/Alert aerobic, anaerobic and paediatric blood culture material. Contaminating microbial DNA from Lactococcus lactis or Bacillus coagulans was identified in all batches of BacT/Alert
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