期刊
TRENDS IN FOOD SCIENCE & TECHNOLOGY
卷 91, 期 -, 页码 574-585出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2019.07.037
关键词
Real-time PCR; Food analysis; Species identification; Method acceptance parameters; PCR inhibition; PCR amplification control
资金
- South Korea Government [2017ES0017]
- Ministry of Food and Drug Safety, South Korea [16161MFDS057]
- Sangji University
Background: The increased interest in global food fraud has led to the development of a number of advanced methods, among which real-time polymerase chain reaction (PCR) currently plays an integral role in food authentication. However, the lack of standard parameters for the development and validation of real-time PCR methods hampers their utilization across different laboratories and conditions, leading to inconsistent results. Scope and approach: This review summarizes and assesses different methods presented throughout a large number of scientific papers, including DNA extraction, primer design, and quantification (or qualification) as well as parameters for the development and validation of real-time PCR methods in food analysis. Key Findings and Conclusions: Inhibitors in DNA extracts can cause decreased PCR sensitivity and false negative results; thus, the use of PCR inhibition and amplification controls (e.g., the 18S ribosomal RNA gene) is essential for obtaining accurate real-time PCR results. In quantitative real-time PCR methods, the results obtained using species-specific systems need to be normalized by using reference systems for the improvement of their accuracy. Therefore, this review will provide researchers with a beneficial guide for the development of real-time PCR methods in a harmonious manner and contribute to an enhanced applicability of the methods developed.
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