Issue 11, 2022

An ultra-fast, one-step RNA amplification method for the detection of Salmonella in seafood

Abstract

Salmonella is one of the most common pathogens associated with food-borne illness resulting from seafood consumption. Herein, an accelerated strand exchange amplification (ASEA) requiring only a pair of primers and one polymerase was first reported for ultra-fast, one-step RNA amplification detection of Salmonella in seafood. The ASEA method could detect Salmonella typhimurium DNA in dilutions as low as 10 copies per reaction and displayed good specificity for Salmonella under the interference of a variety of food-borne pathogens. In particular, ASEA could detect RNA in one step without additional reverse transcription. The detection limit for Salmonella in artificially contaminated oyster was 1 CFU mL−1 following 12 h of enrichment. Moreover, excellent performance of this assay was observed with 99.02% consistency relative to real-time PCR through actual sample detection. Combined with the rapid nucleic acid extraction method, the entire detection process could be completed within 20 min. Therefore, this assay opens up new prospects for the detection of food-borne pathogens in seafood with its rapidity, which would be very beneficial for food safety supervision and pathogen detection of high-throughput samples.

Graphical abstract: An ultra-fast, one-step RNA amplification method for the detection of Salmonella in seafood

Supplementary files

Article information

Article type
Paper
Submitted
04 Des 2021
Accepted
10 Feb 2022
First published
11 Feb 2022

Anal. Methods, 2022,14, 1111-1116

An ultra-fast, one-step RNA amplification method for the detection of Salmonella in seafood

X. Zhao, J. Zhang, Y. Duan, Q. Wan, X. Zhang, J. Chen, C. Shi, Y. Gao and C. Ma, Anal. Methods, 2022, 14, 1111 DOI: 10.1039/D1AY02056K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements