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Submitted
18 September 2020
Published
1 June 2021
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Abstract

This study aimed to detect Escherichia coli directly without DNA extraction. The nucleus membrane and cell membranes of the Escherichia coli are composed of a phospholipid bilayer, damaged if heated at 950C. Pre-denaturation and denaturation of PCR were carried out at 950C. The two stages are thought to break down the Escherichia coli cells, so that the DNA that comes out of the cells can directly become a template in the PCR analysis. In this study, PCR analysis was carried out using Escherichia coli culture, Escherichia coli bacteria culture incubated at 950C, and Escherichia coli bacteria cultures incubated at 650C + on ice as templates. The results showed that PCR analysis using Escherichia coli culture directly and Escherichia coli culture incubated at 650C + on ice as templates produced very thin DNA bands with a size of 580 bp. while PCR analysis using Escherichia coli bacteria culture incubated at 950C as a template produced thick DNA bands with a size of 580 bp. This study's results are very useful for saving time and costs in the detection of Escherichia coli bacteria. The sample to be tested does not need DNA isolation as usual, but only needs to be incubated at 950C for 10 minutes.

Keywords

Escherichia coli PCR Polimerase Chain Reaction

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  • Folia Medica Indonesiana is a scientific peer-reviewed article which freely available to be accessed, downloaded, and used for research purposes. Folia Medica Indonesiana (p-ISSN: 2541-1012; e-ISSN: 2528-2018) is licensed under a Creative Commons Attribution 4.0 International License. Manuscripts submitted to Folia Medica Indonesiana are published under the terms of the Creative Commons License. The terms of the license are:

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How to Cite
Widodo, W. T., & Huda, C. (2021). Detection of Escherichia Coli Using PCR Analysis Without DNA Extraction. Folia Medica Indonesiana, 57(2), 147–150. https://doi.org/10.20473/fmi.v57i2.22097
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