Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables

Rapid detection of target foodborne pathogens plays more and more significant roles in food safety, which requires the efficiency, sensitivity, and accuracy. In this research, we proposed a new strategy of isothermal-molecular-amplification integrated with lateral-flow-strip for rapid detection of S...

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Main Authors: Bin Li, Hanling Wang, Jianguo Xu, Wei Qu, Li Yao, Bangben Yao, Chao Yan, Wei Chen
Format: Article
Language:English
Published: Tsinghua University Press 2023-07-01
Series:Food Science and Human Wellness
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Online Access:http://www.sciencedirect.com/science/article/pii/S2213453022002610
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author Bin Li
Hanling Wang
Jianguo Xu
Wei Qu
Li Yao
Bangben Yao
Chao Yan
Wei Chen
author_facet Bin Li
Hanling Wang
Jianguo Xu
Wei Qu
Li Yao
Bangben Yao
Chao Yan
Wei Chen
author_sort Bin Li
collection DOAJ
description Rapid detection of target foodborne pathogens plays more and more significant roles in food safety, which requires the efficiency, sensitivity, and accuracy. In this research, we proposed a new strategy of isothermal-molecular-amplification integrated with lateral-flow-strip for rapid detection of Salmonella without traditional enrichment-culture. The designed syringe-assisted-filtration can contribute to simultaneous collection and concentration of target bacterium from vegetable samples in just 3 min, resolving the drawbacks of traditional random sampling protocols. After simple and convenient ultrasonication, samples can be directly amplified at 39 °C in 25 min and the amplicons are qualitatively and quantitatively analyzed with the designed lateral-flow-strip in 5 min. Finally, satisfied results have been achieved within 40 min, which greatly improve the efficiency while the accuracy is also guaranteed. Furthermore, all detection steps can be completed under instrument-free conditions. This method will hold great promise for target pathogen detection in the resource-limited district, or for emergency on-site identification.
format Article
id doaj-art-ee2b4ccab8bb423ebf6cae53c1030a32
institution Kabale University
issn 2213-4530
language English
publishDate 2023-07-01
publisher Tsinghua University Press
record_format Article
series Food Science and Human Wellness
spelling doaj-art-ee2b4ccab8bb423ebf6cae53c1030a322025-02-02T23:25:37ZengTsinghua University PressFood Science and Human Wellness2213-45302023-07-0112411671173Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetablesBin Li0Hanling Wang1Jianguo Xu2Wei Qu3Li Yao4Bangben Yao5Chao Yan6Wei Chen7Engineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, ChinaEngineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, ChinaEngineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, ChinaEngineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, ChinaEngineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, China; Corresponding authors at: Hefei University of Technology, Hefei 230009, ChinaEngineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Institute of Product Quality Supervision and Inspection, Hefei 230051, ChinaAnhui Provincial Institute of Product Quality Supervision and Inspection, Hefei 230051, ChinaEngineering Research Center of Bio-Process, Ministry of Education, School of Food and Biological Engineering, Intelligent Manufacturing Institute, Hefei University of Technology, Hefei 230009, China; Corresponding authors at: Hefei University of Technology, Hefei 230009, ChinaRapid detection of target foodborne pathogens plays more and more significant roles in food safety, which requires the efficiency, sensitivity, and accuracy. In this research, we proposed a new strategy of isothermal-molecular-amplification integrated with lateral-flow-strip for rapid detection of Salmonella without traditional enrichment-culture. The designed syringe-assisted-filtration can contribute to simultaneous collection and concentration of target bacterium from vegetable samples in just 3 min, resolving the drawbacks of traditional random sampling protocols. After simple and convenient ultrasonication, samples can be directly amplified at 39 °C in 25 min and the amplicons are qualitatively and quantitatively analyzed with the designed lateral-flow-strip in 5 min. Finally, satisfied results have been achieved within 40 min, which greatly improve the efficiency while the accuracy is also guaranteed. Furthermore, all detection steps can be completed under instrument-free conditions. This method will hold great promise for target pathogen detection in the resource-limited district, or for emergency on-site identification.http://www.sciencedirect.com/science/article/pii/S2213453022002610VegetablesSalmonellaFiltration enrichmentCulture-free detectionEnzymatic recombinase amplification (ERA)Lateral flow strip (LFS)
spellingShingle Bin Li
Hanling Wang
Jianguo Xu
Wei Qu
Li Yao
Bangben Yao
Chao Yan
Wei Chen
Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables
Food Science and Human Wellness
Vegetables
Salmonella
Filtration enrichment
Culture-free detection
Enzymatic recombinase amplification (ERA)
Lateral flow strip (LFS)
title Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables
title_full Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables
title_fullStr Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables
title_full_unstemmed Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables
title_short Filtration assisted pretreatment for rapid enrichment and accurate detection of Salmonella in vegetables
title_sort filtration assisted pretreatment for rapid enrichment and accurate detection of salmonella in vegetables
topic Vegetables
Salmonella
Filtration enrichment
Culture-free detection
Enzymatic recombinase amplification (ERA)
Lateral flow strip (LFS)
url http://www.sciencedirect.com/science/article/pii/S2213453022002610
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