کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2450542 1109654 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of PCR assays for detection of Escherichia coli O157:H7 in meat products
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Development of PCR assays for detection of Escherichia coli O157:H7 in meat products
چکیده انگلیسی

A multiplex polymerase chain reaction (PCR) procedure based on fliCh7 and rfbE genes was developed for the detection of Escherichia coli O157:H7 in raw pork meat and ready-to-eat (RTE) meat products. Two different DNA extraction procedures were evaluated for application on meat products. MasterPure™ DNA Purification kit in combination with immunomagnetic separation was found to be the best method in a meat system. The optimized PCR included an enrichment step in brilliant green bile 2% broth at 37 °C. This method was applied to artificially inoculated meat and RTE meat products with different concentrations of E. coli O157:H7. The results indicate that the PCR assay developed could sensitively and specifically detect E. coli O157:H7 in raw pork meat and RTE meat products in approximately 10 h, including a 6 h enrichment step. Thus, this method could be proposed for screening E. coli O157:H7 in raw pork and RTE meat products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Meat Science - Volume 88, Issue 4, August 2011, Pages 767–773
نویسندگان
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