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KMID : 1007520200290081149
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Food Science and Biotechnology
2020 Volume.29 No. 8 p.1149 ~ p.1157
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Rapid detection of E. coli O157:H7 by a novel access with combination of improved sample preparation and real-time PCR
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Kim Jin-Hee
Oh Se-Wook
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Abstract
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Foodborne bacteria are typically present at very low concentrations in food. This study describes a quick and simple method for concentrating E. coli O157:H7 present in lettuce and cabbage, without microbial enrichment culture. This method involved reducing the extraction buffer and DNA elution volumes. The extraction buffer volume was adjusted to 225, 100, 50, 25, and 12.5 mL to isolate E. coli O157:H7 from 25 g of lettuce or cabbage. DNA was concentrated and compared using real-time PCR. When using 12.5 mL of buffer,?
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KEYWORD
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E. coli O157:H7, Preconcentration, Without enrichment, Rapid detection, 2 h
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