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      PCR inhibitors - occurrence, properties and removal.

      1 , , ,
      Journal of applied microbiology
      Wiley

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          Abstract

          The polymerase chain reaction (PCR) is increasingly used as the standard method for detection and characterization of microorganisms and genetic markers in a variety of sample types. However, the method is prone to inhibiting substances, which may be present in the analysed sample and which may affect the sensitivity of the assay or even lead to false-negative results. The PCR inhibitors represent a diverse group of substances with different properties and mechanisms of action. Some of them are predominantly found in specific types of samples thus necessitating matrix-specific protocols for preparation of nucleic acids before PCR. A variety of protocols have been developed to remove the PCR inhibitors. This review focuses on the general properties of PCR inhibitors and their occurrence in specific matrices. Strategies for their removal from the sample and for quality control by assessing their influence on the individual PCR test are presented and discussed.

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          Author and article information

          Journal
          J Appl Microbiol
          Journal of applied microbiology
          Wiley
          1365-2672
          1364-5072
          Nov 2012
          : 113
          : 5
          Affiliations
          [1 ] Food Hygiene and Safety Concepts, Federal Institute for Risk Assessment, Berlin, Germany.
          Article
          10.1111/j.1365-2672.2012.05384.x
          22747964
          19871be2-c313-410d-92d4-3aa011740464
          © 2012 The Authors Journal of Applied Microbiology © 2012 The Society for Applied Microbiology.
          History

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