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Wang H, Chen C, Xie M, Zhang Y, Chen B, Li Y, Jia W, Chen J, Zhou W. Research on quantitative detection technology of raccoon-derived ingredient adulteration in sausage products. Food Sci Nutr 2024; 12:2963-2972. [PMID: 38628186 PMCID: PMC11016427 DOI: 10.1002/fsn3.3976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/13/2023] [Accepted: 01/06/2024] [Indexed: 04/19/2024] Open
Abstract
This project presents a quantitative detection method to identify raccoon-derived ingredient adulteration in sausage products. The specific copy gene of the raccoon was selected as the target gene. According to the specificity of its primer and probe, the quantitative detection method of raccoon microdrops by droplet digital PCR was established. In addition, the accuracy of the proposed method was verified by artificially mixed samples, and the applicability of this method was tested based on the commercially available products. The experimental results indicate that the raccoon mass (M) and raccoon-extracted DNA concentration have a good linear relationship when the sample content is 5-100 mg, and there is also a significant linear relationship between DNA content and DNA copy number (C) with R 2 = .9982. Therefore, using DNA concentration as the median signal, the conversion equation between raw raccoon mass (M) and DNA copy number (C) could be obtained as follows: M = (C + 177.403)/16.954. The detection of artificially mixed samples and commercial samples shows that the method is accurate and suitable for quantitative adulteration detection of various sausage products in the market.
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Affiliation(s)
- Hui Wang
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
| | - Chen Chen
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
| | - Mengying Xie
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
| | - Yan Zhang
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
| | - Boxu Chen
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
| | - Yongyan Li
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
| | - Wenshen Jia
- Institute of Quality Standard and Testing TechnologyBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Jia Chen
- College of Chemical TechnologyShijiazhuang UniversityShijiazhuangChina
| | - Wei Zhou
- Hebei Food Safety Key Laboratory, Key Laboratory of Special Food Supervision Technology for State Market Regulation, Hebei Engineering Research Center for Special Food Safety and HealthHebei Food Inspection and Research InstituteShijiazhuangChina
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Wang S, Song H, Wang T, Xue H, Fei Y, Xiong X. Recent advancements with loop-mediated isothermal amplification (LAMP) in assessment of the species authenticity with meat and seafood products. Crit Rev Food Sci Nutr 2024:1-22. [PMID: 38494899 DOI: 10.1080/10408398.2024.2329979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Species adulteration or mislabeling with meat and seafood products could negatively affect the fair trade, wildlife conservation, food safety, religion aspect, and even the public health. While PCR-based methods remain the gold standard for assessment of the species authenticity, there is an urgent need for alternative testing platforms that are rapid, accurate, simple, and portable. Owing to its ease of use, low cost, and rapidity, LAMP is becoming increasingly used method in food analysis for detecting species adulteration or mislabeling. In this review, we outline how the features of LAMP have been leveraged for species authentication test with meat and seafood products. Meanwhile, as the trend of LAMP detection is simple, rapid and instrument-free, it is of great necessity to carry out end-point visual detection, and the principles of various end-point colorimetry methods are also reviewed. Moreover, with the aim to enhance the LAMP reaction, different strategies are summarized to either suppress the nonspecific amplification, or to avoid the results of nonspecific amplification. Finally, microfluidic chip is a promising point-of-care method, which has been the subject of a great deal of research directed toward the development of microfluidic platforms-based LAMP systems for the species authenticity with meat and seafood products.
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Affiliation(s)
- Shihui Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Hongwei Song
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Tianlong Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Hanyue Xue
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Yanjin Fei
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Xiong Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
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Danawadkar VN, Ruban SW, Milton AAP, Kiran M, Momin KM, Ghatak S, Mohan HV, Porteen K. Development of novel isothermal-based DNA amplification assay for detection of pig tissues in adulterated meat. Eur Food Res Technol 2023; 249:1-9. [PMID: 37362349 PMCID: PMC10079161 DOI: 10.1007/s00217-023-04250-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 06/28/2023]
Abstract
For the first time, we describe an innovative polymerase spiral reaction (PSR) assay for the rapid, simple, and accurate detection of pig tissues or pork in adulterated meat including heat-treated and processed ones. The PSR assay specifically targeting the mitochondrial cytochrome b (cyt-b) gene of the pig was successfully optimized permitting assay results in 65 min time. The developed detection method was 100% specific amplifying only the cyt-b gene and displaying negative results with all the tested non-pork meats. The sensitivity of the developed PSR (760 fg porcine DNA) was tenfold better than the end-point PCR and able to detect heat-treated (121 °C) and adulterated (0.5% pork in beef) meat and processed pork products such as sausages, salami, meatball, soup, curry, etc. The developed PSR-based method can be used for point-of-care detection with minimum instrumentation and technical expertise to guarantee instant clearance of exported and imported meat products. This is the first time that PSR has been adapted for food authenticity purposes.
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Affiliation(s)
- Vinaykumar N. Danawadkar
- Department of Livestock Products Technology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Hebbal, Bangalore, India
| | - S. Wilfred Ruban
- Department of Livestock Products Technology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Hebbal, Bangalore, India
| | | | - M. Kiran
- Department of Livestock Products Technology, Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Nandinagar, Bidar, India
| | - Kasanchi M. Momin
- Division of Animal and Fisheries Sciences, ICAR Research Complex for NEH Region, Umiam, Meghalaya India
| | - Sandeep Ghatak
- Division of Animal and Fisheries Sciences, ICAR Research Complex for NEH Region, Umiam, Meghalaya India
| | - H. V. Mohan
- Department of Veterinary Public Health, Hebbal Veterinary College, Karnataka Veterinary, Animal and Fisheries Sciences University, Hebbal, Bangalore, India
| | - Kannan Porteen
- Department of Veterinary Public Health, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai, India
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4
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Zhou C, Wang J, Xiang J, Fu Q, Sun X, Liu L, Ai L, Wang J. Rapid detection of duck ingredient in adulterated foods by isothermal recombinase polymerase amplification assays. FOOD CHEMISTRY. MOLECULAR SCIENCES 2023; 6:100162. [PMID: 36654874 PMCID: PMC9841362 DOI: 10.1016/j.fochms.2023.100162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/03/2023] [Accepted: 01/07/2023] [Indexed: 01/11/2023]
Abstract
Duck is often used in meat fraud as a substitute for more expensive meats. Rapid detection of duck ingredient in meat products is of great significance for combating meat fraud and safeguarding the interests of consumers. Therefore, we aim to develop duck-specific recombinase polymerase amplification (RPA)-based assays for the rapid detection of duck ingredient in animal-derived foods. Using Cytb gene as target, the real-time RPA and RPA combined with lateral flow strips (LFS RPA) were developed successfully for the rapid detection of ducks in 20 min at 39 °C and 40 °C, respectively. The assays did not show cross-reactions with 6 other livestock and poultry. The developed RPA assays could detect 10 pg duck genomic DNA per reaction and 0.1 % (w/w) duck ingredient in duck and mutton mixed powder within 30 min, including a rapid nucleic acid extraction. Furthermore, duck ingredient could be detected in 30 different actual foods including heat-processed meats and blood products. Therefore, duck-specific real-time RPA and LFS RPA assays were successfully developed with good specificity and sensitivity, which could enable rapid detection of duck ingredient in the field and provide technical support for combating the meat fraud.
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Affiliation(s)
- Cang Zhou
- School of Public Health, Hebei Medical University, Shijiazhuang 050017, China,Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China,Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China
| | - Jinfeng Wang
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Jialin Xiang
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Qi Fu
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Xiaoxia Sun
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Libing Liu
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Lianfeng Ai
- School of Public Health, Hebei Medical University, Shijiazhuang 050017, China,Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China,Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China
| | - Jianchang Wang
- School of Public Health, Hebei Medical University, Shijiazhuang 050017, China,Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China,Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China,Corresponding author at: School of Public Health, Hebei Medical University, Shijiazhuang 050017, China.
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Kua JM, Azizi MMF, Abdul Talib MA, Lau HY. Adoption of analytical technologies for verification of authenticity of halal foods - a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:1906-1932. [PMID: 36252206 DOI: 10.1080/19440049.2022.2134591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Halal authentication has become essential in the food industry to ensure food is free from any prohibited ingredients according to Islamic law. Diversification of food origin and adulteration issues have raised concerns among Muslim consumers. Therefore, verification of food constituents and their quality is paramount. From conventional methods based on physical and chemical properties, various diagnostic methods have emerged relying on protein or DNA measurements. Protein-based methods that have been used in halal detection including electrophoresis, chromatographic-based methods, molecular spectroscopy and immunoassays. Polymerase chain reaction (PCR) and loop-mediated isothermal amplification (LAMP) are DNA-based techniques that possess better accuracy and sensitivity. Biosensors are miniatured devices that operate by converting biochemical signals into a measurable quantity. CRISPR-Cas is one of the latest novel emerging nucleic acid detection tools in halal food analysis as well as quantification of stable isotopes method for identification of animal species. Within this context, this review provides an overview of the various techniques in halal detection along with their advantages and limitations. The future trend and growth of detection technologies are also discussed in this review.
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Affiliation(s)
- Jay Mie Kua
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | | | - Mohd Afendy Abdul Talib
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), Persiaran MARDI-UPM, Serdang, Selangor, Malaysia
| | - Han Yih Lau
- Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute (MARDI), Persiaran MARDI-UPM, Serdang, Selangor, Malaysia
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Current Analytical Methods and Research Trends Are Used to Identify Domestic Pig and Wild Boar DNA in Meat and Meat Products. Genes (Basel) 2022; 13:genes13101825. [PMID: 36292710 PMCID: PMC9601671 DOI: 10.3390/genes13101825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/04/2022] Open
Abstract
The pig, one of the most important livestock species, is a meaningful source of global meat production. It is necessary, however, to prove whether a food product that a discerning customer selects in a store is actually made from pork or venison, or does not contain it at all. The problem of food authenticity is widespread worldwide, and cases of meat adulteration have accelerated the development of food and the identification methods of feed species. It is worth noting that several different molecular biology techniques can identify a porcine component. However, the precise differentiation between wild boar and a domestic pig in meat products is still challenging. This paper presents the current state of knowledge concerning the species identification of the domestic pig and wild boar DNA in meat and its products.
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Yan S, Lan H, Wu Z, Sun Y, Tu M, Pan D. Cleavable molecular beacon-based loop-mediated isothermal amplification assay for the detection of adulterated chicken in meat. Anal Bioanal Chem 2022; 414:8081-8091. [PMID: 36152037 DOI: 10.1007/s00216-022-04342-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/30/2022]
Abstract
A simple, sensitive, specific and fast method based on the loop-mediated isothermal amplification (LAMP) technique and cleavable molecular beacon (CMB) was developed for chicken authentication detection. LAMP and CMB were used for DNA amplification and amplicon analysis, respectively. Targeting the mitochondrial cytochrome b gene of chickens, five primers and one CMB probe were designed, and their specificity was validated against nine other animal species. The structure of CMB and concentrations of dNTPs, MgSO4, betaine, RNase H2, primers and CMB were optimized. The CMB-LAMP assay was completed within 17 min, and its limit of detection for chicken DNA was 1.5 pg μL-1. Chicken adulteration as low as 0.5% was detected in beef, and no cross-reactivity was observed. Finally, this assay was successfully applied to 20 commercial meat products. When combined with our developed DNA extraction method (the extraction time was 1 min: lysis for 10 s, washing for 20 s and elution for 30 s), the entire process (from DNA extraction to results analysis) was able to be completed within 20 min, which is at least 10 min shorter than other LAMP-based methods. Our method showed great potential for the on-site detection of chicken adulteration in meat.
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Affiliation(s)
- Song Yan
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China.,Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang Province and College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Hangzhen Lan
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China. .,Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang Province and College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China.
| | - Zhen Wu
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China.,Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang Province and College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Yangying Sun
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China.,Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang Province and College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Maolin Tu
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China.,Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang Province and College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Daodong Pan
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, China. .,Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang Province and College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China. .,National R&D Center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang, 330022, Jiangxi, China.
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Mohamad N, Azizan NI, Mokhtar NFK, Mustafa S, Mohd Desa MN, Hashim AM. Future perspectives on aptamer for application in food authentication. Anal Biochem 2022; 656:114861. [PMID: 35985482 DOI: 10.1016/j.ab.2022.114861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022]
Abstract
Food fraudulence and food contamination are major concerns, particularly among consumers with specific dietary, cultural, lifestyle, and religious requirements. Current food authentication methods have several drawbacks and limitations, necessitating the development of a simpler, more sensitive, and rapid detection approach for food screening analysis, such as an aptamer-based biosensor system. Although the use of aptamer is growing in various fields, aptamer applications for food authentication are still lacking. In this review, we discuss the limitations of existing food authentication technologies and describe the applications of aptamer in food analyses. We also project several potential targets or marker molecules to be targeted in the SELEX process. Finally, this review highlights the drawbacks of current aptamer technologies and outlines the potential route of aptamer selection and applications for successful food authentication. This review provides an overview of the use of aptamer in food research and its potential application as a molecular reporter for rapid detection in food authentication process. Developing databases to store all biochemical profiles of food and applying machine learning algorithms against the biochemical profiles are urged to accelerate the identification of more reliable biomarker molecules as aptamer targets for food authentication.
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Affiliation(s)
- Nornazliya Mohamad
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Nur Inani Azizan
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Nur Fadhilah Khairil Mokhtar
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Shuhaimi Mustafa
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Nasir Mohd Desa
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Faculty of Medicine and Health Science, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Amalia Mohd Hashim
- Halal Products Research Institute, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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Hu L, Zhang S, Xue Y, Han J, Yi H, Ke Y, Xia Y, Wang S. Rapid Identification of Pseudomonas fluorescens Harboring Thermostable Alkaline Protease by Real-Time Loop-Mediated Isothermal Amplification. J Food Prot 2022; 85:414-423. [PMID: 34855939 DOI: 10.4315/jfp-21-272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 11/29/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Thermostable alkaline protease (TAP) harbored by Pseudomonas fluorescens decomposes protein in milk and dairy products, leading to milk and dairy product spoilage during storage. Thus, a specific, sensitive, rapid, and simple method is required to detect TAP-harboring P. fluorescens. Two sets of primers targeting the aprX and gyrB genes of P. fluorescens were designed. The detection system and conditions were optimized, and a real-time loop-mediated isothermal amplification (real-time LAMP) method was developed for the simultaneous detection of TAP-harboring P. fluorescens in two separate reaction tubes. The phylogenetic tree targeting aprX showed that P. fluorescens and Pseudomonas lurida clustered on the same branch. The phylogenetic tree targeting gyrB showed that P. fluorescens clustered on the same branch with 95% confidence value, whereas P. lurida clustered on different branches. DNA of 16 strains of P. fluorescens and 34 strains of non-P. fluorescens was detected by real-time LAMP. TAP-harboring P. fluorescens can only be identified when the real-time LAMP detection results of both aprX and gyrB are positive. The dissociation temperatures of aprX and gyrB in the real-time LAMP-amplified products were approximately 90.0 and 88.0°C, respectively. The detection limits of the real-time LAMP targeting aprX and gyrB were 4.9 CFU per reaction in pure culture and 2.2 CFU per reaction in skimmed milk. The coefficient of variation of the repeatability test was less than 2%, indicating that the established real-time LAMP of P. fluorescens targeting gyrB and aprX has good stability and repeatability. Real-time LAMP was used to test 200 raw milk samples for the presence of TAP-harboring P. fluorescens in 3 h, and the coincidence rate of the results with those obtained using the traditional method, which takes at least 5 to 7 days, was 100%. Real-time LAMP will be a practical and effective method for accurate and rapid identification of TAP-harboring P. fluorescens in raw milk. HIGHLIGHTS
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Affiliation(s)
- Lianxia Hu
- College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, People's Republic of China
| | - Shufei Zhang
- College of Food Science and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, People's Republic of China
| | - Yuling Xue
- Shijiazhuang Junlebao Dairy Co., Ltd., No. 68, Shitong Road, Shijiazhuang, Hebei 050221, People's Republic of China
| | - Junhua Han
- College of Food Science and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, People's Republic of China
| | - Huaxi Yi
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Yuehua Ke
- Center for Disease Control and Prevention of PLA, No. 20, Dongdajie Street, Fengtai District, Beijing 100071, People's Republic of China
| | - Yongjun Xia
- Shanghai Engineering Research Center of Food Microbiology, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China
| | - Shijie Wang
- College of Food Science and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, People's Republic of China.,Shijiazhuang Junlebao Dairy Co., Ltd., No. 68, Shitong Road, Shijiazhuang, Hebei 050221, People's Republic of China
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Rapid Russula senecis identification assays using loop-mediated isothermal amplification based on real-time fluorescence and visualization. Appl Microbiol Biotechnol 2022; 106:1227-1239. [DOI: 10.1007/s00253-022-11774-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/03/2022] [Accepted: 01/09/2022] [Indexed: 12/28/2022]
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11
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Seddaoui N, Amine A. Smartphone-based competitive immunoassay for quantitative on-site detection of meat adulteration. Talanta 2021; 230:122346. [PMID: 33934795 DOI: 10.1016/j.talanta.2021.122346] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 01/15/2023]
Abstract
Rapid, sensitive, and portable analytical methods for on-site inspection of food fraud are now an urgent requirement to ensure food quality and satisfy the ethnic considerations of consumers. Hence, for the first time, a colorimetric smartphone-based immunoassay was developed for the on-site detection of pork adulteration in meat. In detail, the immunoassay was based on a competitive strategy in which immobilized standard porcine IgG competed with the target porcine IgG extracted in a single step from meat samples. The parameters involved in each step of the immunoassay conception and the digital colorimetric detection were carefully investigated and optimized. Using polystyrene microplates as ready-to-use stable and portable immunoplatforms, TMB as chromogenic substrate, smartphone as signal readout, and Image J software for image processing; the developed immunoassay was able to detect as low as 0.01% of pork in meat mixtures in a total assay time of 30 min. The selectivity of the immunoassay was evaluated for different meat species, and it was shown to selectively respond only to pork. Furthermore, excellent stability of the prepared immunological platform was demonstrated under extreme temperature conditions (50 °C), which confirms its high portability potential for in situ quantification of pork, while being relatively cost effective and non-laborious. The developed method also provides great precision (RSD < 6%) and accuracy (relative error< 6%). Given the universal use of smartphones as portable and affordable devices, such format of immunoassay could be a promising approach for rapid and sensitive real-time monitoring of food fraud.
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Affiliation(s)
- Narjiss Seddaoui
- Laboratory of Process Engineering and Environment, Faculty of Sciences and Techniques, Hassan II University of Casablanca, P.A. 146, Mohammedia, Morocco
| | - Aziz Amine
- Laboratory of Process Engineering and Environment, Faculty of Sciences and Techniques, Hassan II University of Casablanca, P.A. 146, Mohammedia, Morocco.
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