A RAPID AND SPECIFIC DETECTION OF PATHOGENIC SEROVAR SALMONELLA TYPHIMURIUM BY LOOP-MEDIATED ISOTHERMAL AMPLIFICATION METHOD (LAMP)

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RAVAN HADI; AMANDADI MOJDEH

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Journal: Journal of Microbial Biology Year:2017 | Volume:6 | Issue:23 Page(s): 85-94

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Title

A RAPID AND SPECIFIC DETECTION OF PATHOGENIC SEROVAR SALMONELLA TYPHIMURIUM BY LOOP-MEDIATED ISOTHERMAL AMPLIFICATION METHOD (LAMP)

Author(s)

RAVAN HADI | AMANDADI MOJDEH | Issue Writer Certificate

Keywords

SALMONELLA TYPHIMURIUMQ2

LAMP ASSAYQ1

STM4497 GENEQ1

Abstract

Introduction: Salmonella serovar typhimurium is one of the most important foodborne pathogens and common causes of salmonellosis that in some conditions lead to septicemia or even death in humans. Therefore, the present study sought to detect this pathogenic serovar using loop-mediated isothermal amplification (LAMP) assay.Materials and methods: In the present study, six special primers were used to amplify STM4497 GENE and accordingly to detect SALMONELLA TYPHIMURIUM strains. The detection of the amplified products was performed by both turbidity and gel electrophoresis methods. Furthermore, the efficiency of LAMP ASSAY for the detection of SALMONELLA TYPHIMURIUM strains was examined in several artificially contaminated chicken meat samples.Results: The specificity of the assay was evaluated by various isolates of Salmonella and non- Salmonella, and positive results were only obtained from SALMONELLA TYPHIMURIUM isolates. The detection limit of the assay was determined to be 10 CFU/reaction, which was lower than the previously developed competing assays. The results of the assay on artificially contaminated chicken meats showed that this assay enables detecting SALMONELLA TYPHIMURIUM strains with a detection limit 103 CFU/mL without pre-enrichment and 10 CFU/mL after a four-hour pre-enrichment.Discussion and conclusion: As a result of a high sensitivity and specificity of the method as well as its low cost per assay, it could be concluded that the present LAMP ASSAY is a powerful, accurate, and efficient method for detecting pathogenic serovar SALMONELLA TYPHIMURIUM in food-processing industries and diagnostic laboratories.

Cites

Evaluation and Optimization of a Loop-Mediated Isothermal Amplification (LAMP) Assay for the Detection of Salmonella enterica serovar Typhi Isolated from Food Samples

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APA: Copy

RAVAN, HADI, & AMANDADI, MOJDEH. (2017). A RAPID AND SPECIFIC DETECTION OF PATHOGENIC SEROVAR SALMONELLA TYPHIMURIUM BY LOOP-MEDIATED ISOTHERMAL AMPLIFICATION METHOD (LAMP). BIOLOGICAL JOURNAL OF MICROORGANISM, 6(23), 85-94. SID. https://sid.ir/paper/237449/en

Vancouver: Copy

RAVAN HADI, AMANDADI MOJDEH. A RAPID AND SPECIFIC DETECTION OF PATHOGENIC SEROVAR SALMONELLA TYPHIMURIUM BY LOOP-MEDIATED ISOTHERMAL AMPLIFICATION METHOD (LAMP). BIOLOGICAL JOURNAL OF MICROORGANISM[Internet]. 2017;6(23):85-94. Available from: https://sid.ir/paper/237449/en

IEEE: Copy

HADI RAVAN, and MOJDEH AMANDADI, “A RAPID AND SPECIFIC DETECTION OF PATHOGENIC SEROVAR SALMONELLA TYPHIMURIUM BY LOOP-MEDIATED ISOTHERMAL AMPLIFICATION METHOD (LAMP),” BIOLOGICAL JOURNAL OF MICROORGANISM, vol. 6, no. 23, pp. 85–94, 2017, [Online]. Available: https://sid.ir/paper/237449/en

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