1
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Xiang R, Liu GY, Hou Y, Xie LX, Wang QS, Hu SQ. Double domain fusion improves the reverse transcriptase activity and inhibitor tolerance of Bst DNA polymerase. Int J Biol Macromol 2024; 274:133243. [PMID: 38901507 DOI: 10.1016/j.ijbiomac.2024.133243] [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: 12/11/2023] [Revised: 06/09/2024] [Accepted: 06/16/2024] [Indexed: 06/22/2024]
Abstract
To enhance the DNA/RNA amplification efficiency and inhibitor tolerance of Bst DNA polymerase, four chimeric Bst DNA polymerase by fusing with a DNA-binding protein Sto7d and/or a highly hydrophobic protein Hp47 to Bst DNA polymerase large fragment. One of chimeric protein HpStBL exhibited highest inhibitor tolerance, which retained high active under 0.1 U/μL sodium heparin, 0.8 ng/μL humic acid, 2.5× SYBR Green I, 8 % (v/v) whole blood, 20 % (v/v) tissue, and 2.5 % (v/v) stool. Meanwhile, HpStBL showed highest sensitivity (93.75 %) to crude whole blood infected with the African swine fever virus. Moreover, HpStBL showed excellent reverse transcriptase activity in reverse transcription loop-mediated isothermal amplification, which could successfully detect 0.5 pg/μL severe acute respiratory syndrome coronavirus 2 RNA in the presence of 1 % (v/v) stools. The fusion of two domains with different functions to Bst DNA polymerase would be an effective strategy to improve Bst DNA polymerase performance in direct loop-mediated isothermal amplification and reverse transcription loop-mediated isothermal amplification detection, and HpStBL would be a promising DNA polymerase for direct African swine fever virus/severe acute respiratory syndrome coronavirus 2 detection due to simultaneously increased inhibitor tolerance and reverse transcriptase activity.
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Affiliation(s)
- Rong Xiang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guang-Yi Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangzhou Enzyvalley Biotech Co., Ltd., Guangzhou 510555, China
| | - Yi Hou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long-Xu Xie
- Guangzhou Hybribio Pharmaceutical Technology Co., Ltd., Guangzhou 510700, China
| | - Qing-Song Wang
- Guangzhou Hybribio Pharmaceutical Technology Co., Ltd., Guangzhou 510700, China
| | - Song-Qing Hu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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2
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Haider A, Iqbal SZ, Bhatti IA, Alim MB, Waseem M, Iqbal M, Mousavi Khaneghah A. Food authentication, current issues, analytical techniques, and future challenges: A comprehensive review. Compr Rev Food Sci Food Saf 2024; 23:e13360. [PMID: 38741454 DOI: 10.1111/1541-4337.13360] [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: 02/05/2024] [Revised: 03/29/2024] [Accepted: 04/16/2024] [Indexed: 05/16/2024]
Abstract
Food authentication and contamination are significant concerns, especially for consumers with unique nutritional, cultural, lifestyle, and religious needs. Food authenticity involves identifying food contamination for many purposes, such as adherence to religious beliefs, safeguarding health, and consuming sanitary and organic food products. This review article examines the issues related to food authentication and food fraud in recent periods. Furthermore, the development and innovations in analytical techniques employed to authenticate various food products are comprehensively focused. Food products derived from animals are susceptible to deceptive practices, which can undermine customer confidence and pose potential health hazards due to the transmission of diseases from animals to humans. Therefore, it is necessary to employ suitable and robust analytical techniques for complex and high-risk animal-derived goods, in which molecular biomarker-based (genomics, proteomics, and metabolomics) techniques are covered. Various analytical methods have been employed to ascertain the geographical provenance of food items that exhibit rapid response times, low cost, nondestructiveness, and condensability.
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Affiliation(s)
- Ali Haider
- Food Safety and Toxicology Lab, Department of Applied Chemistry, Government College University, Faisalabad, Punjab, Pakistan
| | - Shahzad Zafar Iqbal
- Food Safety and Toxicology Lab, Department of Applied Chemistry, Government College University, Faisalabad, Punjab, Pakistan
| | - Ijaz Ahmad Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | | | - Muhammad Waseem
- Food Safety and Toxicology Lab, Department of Applied Chemistry, Government College University, Faisalabad, Punjab, Pakistan
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
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3
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Ruszova E, Vanek D, Stühmer W, Khaznadar Z, Subhashini N. The Utilization of the SaLux19-Based Loop-Mediated Isothermal Amplification (LAMP) Assay for the Rapid and Sensitive Identification of Minute Amounts of a Biological Specimen. Life (Basel) 2024; 14:579. [PMID: 38792600 PMCID: PMC11122329 DOI: 10.3390/life14050579] [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: 02/28/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
Our research has developed a highly sensitive and simple assay to detect small amounts of animal and human biological material in less than 40 min. The handheld SaLux19 device developed at the Max Planck Institute of Experimental Medicine in Göttingen, Germany, was used to validate our concept. The proposed system uses isothermal amplification of DNA in a rapid assay format. Our results show that the assay can detect Sus scrofa nucleic acids with very high sensitivity and specificity. This detection system has potential for forensic scenarios.
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Affiliation(s)
- Ema Ruszova
- Bulovka University Hospital, 180 81 Prague, Czech Republic
- Forensic DNA Service, Budinova 2, 180 81 Prague, Czech Republic
| | - Daniel Vanek
- Bulovka University Hospital, 180 81 Prague, Czech Republic
- Forensic DNA Service, Budinova 2, 180 81 Prague, Czech Republic
- Institute for Environmental Sciences, Charles University, 110 00 Prague, Czech Republic
- Department of Forensic Medicine, Second Faculty of Medicine, Charles University, 110 00 Prague, Czech Republic
| | - Walter Stühmer
- Max Planck Institute of Multidisciplinary Sciences, Hermann-Rein-Str. 3, 37075 Göttingen, Germany
| | - Ziad Khaznadar
- Bulovka University Hospital, 180 81 Prague, Czech Republic
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4
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Hassan M, Hussain D, Kanwal T, Xiao HM, Ghulam Musharraf S. Methods for detection and quantification of gelatin from different sources. Food Chem 2024; 438:137970. [PMID: 37988934 DOI: 10.1016/j.foodchem.2023.137970] [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: 05/23/2023] [Revised: 11/05/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Gelatin is a water-soluble protein obtained from the collagen of various animal origins (porcine, bovine, fish, donkey, horse, and deer hide) and has diverse applications in the food, pharmaceutical, and cosmetics industries. Porcine and bovine gelatins are extensively used in food and non-food products; however, their acceptance is limited due to religious prohibitions, whereas fish gelatin is accepted in all religions. In Southeast Asia, especially in China, gelatin obtained from donkey and deer skins is used in medicines. However, both sources suffer from adulteration (mixing different sources of gelatin) due to their limited availability and high cost. Unclear labeling and limited information about actual gelatin sources in gelatin-containing products cause serious concern among societies for halal and fraud authentication of gelatin sources. Therefore, authenticating gelatin sources in gelatin-based products is challenging due to close similarities between the composition differences and degradation of DNA and protein biomarkers in processed gelatin. Thus, different methods have been proposed to identify and quantify different gelatin sources in pharmaceutical and food products. To the best of our knowledge, this systematic and comprehensive review highlights different authentication techniques and their limitations in gelatin detection and quantification in various commercial products. This review also describes halal authentication and adulteration prevention strategies of various gelatin sources, mainly focussing on research gaps, challenges, and future directions in this research area.
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Affiliation(s)
- Mahjabeen Hassan
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Dilshad Hussain
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Tehreem Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Hua-Ming Xiao
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Syed Ghulam Musharraf
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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5
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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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6
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Hao J, Jia M, Liu Y, Lv Z, Chen J, Xiong W, Zeng Z. Application of a rapid and sensitive RPA-CRISPR/Cas12a assay for naked-eye detection of Haemophilus parasuis. Anal Chim Acta 2024; 1287:342101. [PMID: 38182383 DOI: 10.1016/j.aca.2023.342101] [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: 08/08/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Haemophilus parasuis (H. parasuis) is a gram-negative bacterial pathogen that causes severe infections in swine, resulting in substantial economic losses. Currently, the majority of H. parasuis detection methods are impractical for on-site application due to their reliance on large instruments or complex procedures. Thus, there is an urgent need to develop a rapid, visually detectable, and highly sensitive detection method, especially under resource-limited environments and field conditions. RESULTS In this study, we established a naked eye assay for highly sensitive detection by combining recombinase polymerase amplification (RPA) with CRISPR/Cas12a technology. Positive samples exhibited a clear red color visible to the naked eye, while negative samples appeared blue. We achieved a remarkable sensitivity, detecting H. parasuis down to a single copy, with no cross-reactivity with other bacteria. In a mouse model, our assay detected H. parasuis infection nearly 8 h earlier than traditional PCR. Compared to qPCR, our detection results were 100 % accurate. To enhance point-of-care applicability and mitigate the risk of aerosol contamination from uncapping, we consolidated RPA and CRISPR/Cas12a cleavage into a single-tube reaction system. This integrated approach was validated with 20 clinical lung samples, yielding results consistent with those obtained from qPCR. The entire procedure, from DNA extraction to detection, was completed in 35 min. SIGNIFICANCE We present an RPA-CRISPR/Cas12a assay suitable for the early and resource-efficient diagnosis of H. parasuis infections. Its simplicity and visual detection are advantageous for field diagnostics, representing a substantial develpoment in the diagnosis of H. parasuis.
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Affiliation(s)
- Jie Hao
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China
| | - Mengyan Jia
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China
| | - Yiting Liu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China
| | - Zhenlin Lv
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China
| | - Junming Chen
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China
| | - Wenguang Xiong
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China; National Reference Laboratory of Veterinary Drug Residues, South China Agricultural University, Guangzhou, 510642, China.
| | - Zhenling Zeng
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China; National Laboratory of Safety Evaluation (Environmental Assessment) of Veterinary Drugs, South China Agricultural University, Guangzhou, 510642, China; National Reference Laboratory of Veterinary Drug Residues, South China Agricultural University, Guangzhou, 510642, China.
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7
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Lee SM, Balakrishnan HK, Doeven EH, Yuan D, Guijt RM. Chemical Trends in Sample Preparation for Nucleic Acid Amplification Testing (NAAT): A Review. BIOSENSORS 2023; 13:980. [PMID: 37998155 PMCID: PMC10669371 DOI: 10.3390/bios13110980] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023]
Abstract
Nucleic acid amplification testing facilitates the detection of disease through specific genomic sequences and is attractive for point-of-need testing (PONT); in particular, the early detection of microorganisms can alert early response systems to protect the public and ecosystems from widespread outbreaks of biological threats, including infectious diseases. Prior to nucleic acid amplification and detection, extensive sample preparation techniques are required to free nucleic acids and extract them from the sample matrix. Sample preparation is critical to maximize the sensitivity and reliability of testing. As the enzymatic amplification reactions can be sensitive to inhibitors from the sample, as well as from chemicals used for lysis and extraction, avoiding inhibition is a significant challenge, particularly when minimising liquid handling steps is also desirable for the translation of the assay to a portable format for PONT. The reagents used in sample preparation for nucleic acid testing, covering lysis and NA extraction (binding, washing, and elution), are reviewed with a focus on their suitability for use in PONT.
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Affiliation(s)
- Soo Min Lee
- Centre for Regional and Rural Futures (CeRRF), Deakin University, Locked Bag 20000, Geelong, VIC 3220, Australia
| | - Hari Kalathil Balakrishnan
- Department of Chemical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates;
| | - Egan H. Doeven
- School of Life and Environmental Sciences, Deakin University, Locked Bag 20000, Geelong, VIC 3220, Australia;
| | - Dan Yuan
- School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, QLD 4072, Australia;
| | - Rosanne M. Guijt
- Centre for Regional and Rural Futures (CeRRF), Deakin University, Locked Bag 20000, Geelong, VIC 3220, Australia
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8
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Janudin AS, Kurup CP, Chee LY, Mohd-Naim NF, Ahmed MU. Amplification-Based CRISPR/Cas12a Biosensor Targeting the COX1 Gene for Specific Detection of Porcine DNA. ACS OMEGA 2023; 8:38212-38219. [PMID: 37867655 PMCID: PMC10586177 DOI: 10.1021/acsomega.3c04473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/04/2023] [Indexed: 10/24/2023]
Abstract
We propose a CRISPR/Cas12a-mediated recombinase polymerase amplification (RPA) detection method that combines RPA with Cas12a cleavage for the detection of halal food adulteration, which is of global concern, particularly for Muslim consumers. We optimized the reagent concentrations for the Cas12a cleavage steps and designed and screened gRNA targeting a conserved area of the mitochondrial cytochrome C oxidase subunit I (COX1) gene. This procedure successfully detected the presence of porcine components as low as 5 pg/μL in the linear range of 5-1000 pg/μL. The assay's detection limit was 500 times lower than CRISPR-based approaches that exclude a preamplification step, allowing the detection of trace porcine DNA in food samples. The assay additionally showed no cross-reaction with nontarget species. Therefore, this detection platform shows tremendous potential as a method for the quick, sensitive, and specific detection of porcine-derived components.
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Affiliation(s)
- Arifah
A. S. Janudin
- Biosensors
and Nanobiotechnology Laboratory, Integrated Science Building, Faculty
of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
Darussalam
| | - Chitra P. Kurup
- Biosensors
and Nanobiotechnology Laboratory, Integrated Science Building, Faculty
of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
Darussalam
| | - Lim Ya Chee
- PAPRSB
Institute of Health Sciences, Universiti
Brunei Darussalam, Jalan
Tungku Link, Gadong BE1410, Brunei Darussalam
| | - Noor F. Mohd-Naim
- PAPRSB
Institute of Health Sciences, Universiti
Brunei Darussalam, Jalan
Tungku Link, Gadong BE1410, Brunei Darussalam
| | - Minhaz U. Ahmed
- Biosensors
and Nanobiotechnology Laboratory, Integrated Science Building, Faculty
of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
Darussalam
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9
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Hossain MM, Zainal Abidin SAS, Bujang A, Taib MN, Sagadevan S, Johan MR, Ahmad Nizar NN. TaqMan multiplex qPCR for detecting animal species in meat and meat products: Development, recent advances and future prospects. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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10
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Wu R, Meng B, Corredig M, Griffiths MW. Rapid Detection of Hepatitis A Virus in Foods Using a Bioluminescent Assay in Real-Time (BART) and Reverse Transcription Loop-Mediated Isothermal Amplification (RT-LAMP) Technology. FOOD AND ENVIRONMENTAL VIROLOGY 2023; 15:144-157. [PMID: 36640204 PMCID: PMC9839959 DOI: 10.1007/s12560-022-09548-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 12/30/2022] [Indexed: 06/13/2023]
Abstract
Foodborne hepatitis A infections have been considered as a major threat for public health worldwide. Increased incidences of hepatitis A virus (HAV) infection has been associated with growing global trade of food products. Rapid and sensitive detection of HAV in foods is very essential for investigating the outbreaks. Real-time RT-PCR has been most widely used for the detection of HAV by far. However, the technology relies on fluorescence determination of the amplicon and requires sophisticated, high-cost instruments and trained personnel, limiting its use in low resource settings. In this study, a robust, affordable, and simple assay, reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay in combination with a bioluminescence-based determination of amplification in real-time (BART), was developed for the detection of HAV in different food matrices, including green onion, strawberry, mussel, and milk. The efficiencies of a one-step RT-LAMP-BART and a two-step RT-LAMP-BART were investigated for the detection of HAV in different food matrices and was compared with that of real-time RT-PCR. The sensitivity of the RT-LAMP-BART assay was significantly affected by Mg2+ concentration (P < 0.05), in addition to primer quality. The optimal Mg2+ concentration was 2 mM for one-step RT-LAMP-BART and 4 mM for two-step RT-LAMP-BART. Compared with cartridge-purified primers, HPLC-purified primers could greatly improve the sensitivity of the RT-LAMP-BART assay (P < 0.05). For detecting HAV in different food matrices, the performance of two-step RT-LAMP-BART was comparable with that of real-time RT-PCR and was better than that of one-step RT-LAMP-BART. The detection limit of the two-step RT-LAMP-BART for HAV in green onion, strawberry, mussel, and milk was 8.3 × 100 PFU/15 g, 8.3 × 101 PFU/50 g, 8.3 × 100 PFU/5 g, and 8.3 × 100 PFU/40 mL, respectively. The developed RT-LAMP-BART was an effective, simple, sensitive, and robust method for foodborne HAV detection.
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Affiliation(s)
- Ruiqin Wu
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada.
- Canadian Research Institute for Food Safety, 43 McGilvray Street, Guelph, ON, N1G 2W1, Canada.
| | - Baozhong Meng
- Department of Molecular and Cellular Biology, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada
| | - Milena Corredig
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada
| | - Mansel W Griffiths
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON, N1G 2W1, Canada
- Canadian Research Institute for Food Safety, 43 McGilvray Street, Guelph, ON, N1G 2W1, Canada
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11
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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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12
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Muflihah, Hardianto A, Kusumaningtyas P, Prabowo S, Hartati YW. DNA-based detection of pork content in food. Heliyon 2023; 9:e14418. [PMID: 36938408 PMCID: PMC10020109 DOI: 10.1016/j.heliyon.2023.e14418] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 03/09/2023] Open
Abstract
Determination of halal food is essential in ensuring the tranquillity of consumers, especially Muslims. Halal products mean they are free from prohibited ingredients according to Islamic law. One ingredient that is prohibited is food products containing pork and its derivatives. An accurate verification method with a fast result is necessary to meet this requirement for halal food. DNA quantification of pork is now believed to be able to make accurate and quick decisions, as DNA acts as a reservoir or biological characterization of all living things, including pigs, according to specific characteristics of molecular and connection settings. Various DNA-based methods developed include PCR, biosensor and CRISPR methods. This review discussed various DNA-based Keywords: biosensor, CRISPR, detection, DNA, pork, PCR methods, including PCR, biosensor and CRISPR, to detect pork content in food. Among these methods, CRISPR is considered the easiest, fastest and most accurate. Therefore, it is important to develop this method further in the future. In this article, we provide a short review on DNA-based methods for detection of pork content in food products.
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Affiliation(s)
- Muflihah
- Doctoral Program in Analytical Chemistry, FMIPA Universitas Padjadjaran, Bandung, 45363, Indonesia
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Universitas Mulawarman Samarinda, 75119, Indonesia
| | - Ari Hardianto
- Doctoral Program in Analytical Chemistry, FMIPA Universitas Padjadjaran, Bandung, 45363, Indonesia
| | - Pintaka Kusumaningtyas
- Chemistry Education Study Program, Faculty of Teacher Training and Education, Universitas Mulawarman Samarinda, 75119, Indonesia
| | - Sulistyo Prabowo
- Halal Center, Universitas Mulawarman, Samarinda, 75119 Indonesia
| | - Yeni Wahyuni Hartati
- Doctoral Program in Analytical Chemistry, FMIPA Universitas Padjadjaran, Bandung, 45363, Indonesia
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13
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JAFAR S, KABIR F, ANJUM KM, ZAHOOR MY, SHEHZAD W, IMRAN M. Comparison of different DNA preparatory methods for development of a universal direct PCR-RFLP workflow for identification of meat origin in food products. FOOD SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1590/fst.65122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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14
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Rapid Detection of Porcine DNA in Meatball Using Recombinase Polymerase Amplification Couple with Lateral Flow Immunoassay for Halal Authentication. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238122. [PMID: 36500215 PMCID: PMC9736299 DOI: 10.3390/molecules27238122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/09/2022] [Accepted: 11/15/2022] [Indexed: 11/23/2022]
Abstract
Point-of-care diagnostic methods for animal species determination are critical for rapid, simple, and accurate enforcement of food labelling. PCR is the most common method for species identification. However, the requirement of using a thermal cycler created drawbacks for the PCR application, particularly in low-resource settings. Hence, in this study, a method for porcine DNA detection using recombinase polymerase amplification (RPA), coupled with nucleic acid lateral flow immunoassay (NALFIA), was developed. Porcine-specific primers targeting pig (Sus scrofa) cytochrome b gene fragments specifically amplify a 197 bp fragment of the mitochondrial gene as being visualized by 2% agarose gel and PCRD NALFIA. The reaction temperature and time were 39 °C and 20 min, respectively. Herein, the specificity of the primers to porcine was confirmed after being assayed against six animal species, namely cow, goat, chicken, duck, dog, and rabbit. The porcine-specific RPA assay shows a high limit of detection of 0.01 ng/µL pork DNA. Based on the preliminary performance data obtained from this study, the potential of this method as a rapid and sensitive tool for porcine DNA detection in meat-based products is foreseen.
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15
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Rapid visual Candidatus Liberibacter asiaticus detection (citrus greening disease) using simple alkaline heat DNA lysis followed by loop-mediated isothermal amplification coupled hydroxynaphthol blue (AL-LAMP-HNB) for potential local use. PLoS One 2022; 17:e0276740. [PMID: 36282857 PMCID: PMC9595546 DOI: 10.1371/journal.pone.0276740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022] Open
Abstract
An outbreak of citrus greening or Huanglongbing disease bacteria occurs in many areas. We sampled and identified an ongoing ~year 2020 orange tree endemic in northern Thailand as Candidatus Liberibacter asiaticus. We thereby developed a plant greening disease (C. Liberibacter asiaticus) detection assay using simple alkaline heat DNA lysis and loop-mediated isothermal amplification coupled hydroxynaphthol blue (AL-LAMP-HNB), and evaluated the developed assay for its feasibility as point-of-care detection on 65 plant leaf samples with 100–1×104 copies of C. Liberibacter asiaticus or mocked injection compared with commercial DNA lysis kit and PCR-GE. Our assay is sensitive to 5–8.9 copies of omp (equaling 0.0056–0.01 fg) compatible with PCR-GE limit of detection. This ultra sensitive limit of detection could allow the disease detection before clinical apparent state of disease when C. Liberibacter asiaticus infection number is few, i.e. fewer than 100 copies of C. Liberibacter asiaticus. The assay is also specific with 6 degenerate primers targeting every strain of C. Liberibacter asiaticus omp from GenBank database, rapid (40 min total assay time), inexpensive (~2–3 USD/reaction), does not require sophisticated instrumentation, and has comparable assay accuracy (93.85–100% accuracy, 100% specificity, and 89.74–100% sensitivity) to bacterial DNA extraction by a commercial kit followed by PCR and gel electrophoresis (92.31% accuracy, 100% specificity, and 87.18% sensitivity) based on the real sample tests. Hence, the technique could be used in local or laboratory resource-restricted settings. The test result could be read by naked eyes through the color change from violet (negative) to sky blue (positive) for a C. Liberibacter asiaticus-infected specimen. Furthermore, this assay uses safe chemical reagents and, thus, is safe for the users.
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16
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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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17
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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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18
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Alkaline lysis-recombinase polymerase amplification combined with CRISPR/Cas12a assay for the ultrafast visual identification of pork in meat products. Food Chem 2022; 383:132318. [DOI: 10.1016/j.foodchem.2022.132318] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/24/2021] [Accepted: 01/30/2022] [Indexed: 12/14/2022]
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19
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Zhang F, Gao C, Bai L, Chen Y, Liang S, Lv X, Sun J, Wang S. Dual-color blending based visual LAMP for food allergen detection: A strategy with enlarged color variation range and contrast. Food Chem X 2022; 13:100201. [PMID: 35498982 PMCID: PMC9039889 DOI: 10.1016/j.fochx.2021.100201] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023] Open
Abstract
A near contrast color change was obtained by blending HNB and CR colorimetric LAMP detection process. The sensitivity of the dual-color blending method was comparable to the real-time LAMP. The ratio between the two visual dyes in the dual-color blending method is crucial. The reaction is conducted in one tube and no lid-opening was needed.
Food allergy has been a serious public health problem around the world. Its prevention relies heavily on the effective avoidance of any contaminated food, making clear and accurate detection very important. LAMP is one of the most potent methods for allergen rapid detection. However, its current colorimetric readouts usually have low color contrast and narrow color variation range. Thus, here we proposed a strategy based on color evolution to enlarge the variation range as well as the contrast to improve its suitability for naked-eye observation. By simply blending two commonly used color change processes during amplification, a wider color variation window, and a near contrast color change, purple-to-green with a hues difference of 10 were obtained. Three important allergens (walnuts, hazelnuts, and peanuts) were tested with a comparable sensitivity towards fluorescent real-time LAMP. Its feasibility for practical use has also been studied. This simple but effective strategy provides a new idea for the colorimetric detection of LAMP amplicons and can be applied to various fields.
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Affiliation(s)
- Fang Zhang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Chenshan Gao
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China.,Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, China
| | - Linlin Bai
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yiquan Chen
- Clinical Laboratory, Nanan Hospital, Nanan 362300, China
| | - Shuying Liang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Xucong Lv
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Jinyuan Sun
- Beijing Laboratory of Food Quality and Safety, Beijing Technology and Business University, Beijing 100048, China
| | - Shaoyun Wang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China
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20
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Li Q, Cheng Y, Xu W, Cui X, Cao M, Xiong X, Wang L, Xiong X. Rapid identification of Atlantic salmon (Salmo salar) based on loop-mediated isothermal amplification (LAMP) using self-quenching fluorogenic approach. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2021.104224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Girish PS, Kumari A, Gireesh‐Babu P, Karabasanavar NS, Raja B, Ramakrishna C, Barbuddhe SB. Alkaline lysis‐loop mediated isothermal amplification assay for rapid and on‐site authentication of buffalo (
Bubalus bubalis
) meat. J Food Saf 2021. [DOI: 10.1111/jfs.12955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Patil S. Girish
- ICAR – National Research Centre on Meat Hyderabad Telangana State India
| | - Aparana Kumari
- ICAR – National Research Centre on Meat Hyderabad Telangana State India
| | | | - Nagappa S. Karabasanavar
- Department of Veterinary Public Health & Epidemiology Veterinary College, Karnataka Veterinary Animal and Fisheries Sciences University Hassan Karnataka India
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22
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Real-time Loop-Mediated Isothermal Amplification (LAMP) Using Self-quenching Fluorogenic Probes: the Application in Skipjack Tuna (Katsuwonus pelamis) Authentication. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02159-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Ultrafast bacterial cell lysis using a handheld corona treater and loop-mediated isothermal amplification for rapid detection of foodborne pathogens. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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24
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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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25
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Soroka M, Wasowicz B, Rymaszewska A. Loop-Mediated Isothermal Amplification (LAMP): The Better Sibling of PCR? Cells 2021; 10:1931. [PMID: 34440699 PMCID: PMC8393631 DOI: 10.3390/cells10081931] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/11/2022] Open
Abstract
In 1998, when the PCR technique was already popular, a Japanese company called Eiken Chemical Co., Ltd. designed a method known as the loop-mediated isothermal amplification of DNA (LAMP). The method can produce up to 109 copies of the amplified DNA within less than an hour. It is also highly specific due to the use of two to three pairs of primers (internal, external, and loop), which recognise up to eight specific locations on the DNA or RNA targets. Furthermore, the Bst DNA polymerase most used in LAMP shows a high strand displacement activity, which eliminates the DNA denaturation stage. One of the most significant advantages of LAMP is that it can be conducted at a stable temperature, for instance, in a dry block heater or an incubator. The products of LAMP can be detected much faster than in standard techniques, sometimes only requiring analysis with the naked eye. The following overview highlights the usefulness of LAMP and its effectiveness in various fields; it also considers the superiority of LAMP over PCR and presents RT-LAMP as a rapid diagnostic tool for SARS-CoV-2.
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Affiliation(s)
| | - Barbara Wasowicz
- Department of Genetics and Genomics, Institute of Biology, University of Szczecin, 3c Felczaka St., 71-412 Szczecin, Poland; (M.S.); (A.R.)
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26
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Xiao X, Hu S, Lai X, Peng J, Lai W. Developmental trend of immunoassays for monitoring hazards in food samples: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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27
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Zia Q, Alawami M, Mokhtar NFK, Nhari RMHR, Hanish I. Current analytical methods for porcine identification in meat and meat products. Food Chem 2020; 324:126664. [PMID: 32380410 DOI: 10.1016/j.foodchem.2020.126664] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 03/20/2020] [Accepted: 03/20/2020] [Indexed: 12/21/2022]
Abstract
Authentication of meat products is critical in the food industry. Meat adulteration may lead to religious apprehensions, financial gain and food-toxicities such as meat allergies. Thus, empirical validation of the quality and constituents of meat is paramount. Various analytical methods often based on protein or DNA measurements are utilized to identify meat species. Protein-based methods, including electrophoretic and immunological techniques, are at times unsuitable for discriminating closely related species. Most of these methods have been replaced by more accurate and sensitive detection methods, such as DNA-based techniques. Emerging technologies like DNA barcoding and mass spectrometry are still in their infancy when it comes to their utilization in meat detection. Gold nanobiosensors have shown some promise in this regard. However, its applicability in small scale industries is distant. This article comprehensively reviews the recent developments in the field of analytical methods used for porcine identification.
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Affiliation(s)
- Qamar Zia
- A New Mind, Ash Shati, Al Qatif 32617-3732, Saudi Arabia.
| | - Mohammad Alawami
- A New Mind, Ash Shati, Al Qatif 32617-3732, Saudi Arabia; Depaartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | | | | | - Irwan Hanish
- Halal Product Research Institute, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia
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