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Wu L, Deng Q, Isah MB, Dang M, Zhang X. Development and evaluation of an immunoassay for the quantification of N-acetylneuraminic acid (Neu5Ac) in foods and biosamples. Food Chem 2024; 461:140929. [PMID: 39178546 DOI: 10.1016/j.foodchem.2024.140929] [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: 01/31/2024] [Revised: 08/11/2024] [Accepted: 08/18/2024] [Indexed: 08/26/2024]
Abstract
N-acetylneuraminic acid is an active ingredient in tonic foods and an important additive in foods and biopharmaceuticals. To address the limitations of existing methods of N-acetylneuraminic acid quantification, we developed an immunoassay based on antibodies induced in hens using artificial antigen, showing high sensitivity and specificity with no cross-reactivity with eight N-acetylneuraminic acid analogues. An IgY-based indirect competitive enzyme-linked immunosorbent assay showed a detection range of 1.14 to 70.08 ng/mL and a limit of detection of 0.57 ng/mL. In spiked samples, recoveries by the indirect competitive enzyme-linked immunosorbent assay ranged from 74.05% to 110.87% compared with HPLC (73.01% to 108.8%). Consistency between the indirect competitive enzyme-linked immunosorbent assay and HPLC was satisfactory (R2 = 0.9736), demonstrating this established immunoassay as a rapid and reliable approach for N-acetylneuraminic acid analysis. The assay described in this study provides an important method for the screening of N-acetylneuraminic acid in biological samples and foodstuffs.
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Affiliation(s)
- Longjiang Wu
- Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Qinqin Deng
- Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Murtala Bindawa Isah
- Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China
| | - Mei Dang
- Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China; Department of Biological Sciences, Faculty of Science, National University of Singapore, 10 Keng Ridge Crescent, 119260, Singapore
| | - Xiaoying Zhang
- Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, China; Centre of Molecular & Environmental Biology, Department of Biology, University of Minho, 4710-057, Braga, Portugal; Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, N1G 2W1 Guelph, Ontario, Canada.
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Dou L, Zhang Y, Bai Y, Li Y, Liu M, Shao S, Li Q, Yu W, Shen J, Wang Z. Advances in Chicken IgY-Based Immunoassays for the Detection of Chemical and Biological Hazards in Food Samples. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:976-991. [PMID: 34990134 DOI: 10.1021/acs.jafc.1c06750] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As antibodies are the main biological binder for hazards in food samples, their performance directly determines the sensitivity, specificity, and reproducibility of the developed immunoassay. The overwhelmingly used mammalian-derived antibodies usually suffer from complicated preparation, high cost, frequent bleeding of animals, and sometimes low titer and affinity. Chicken yolk antibody (IgY) has recently attracted considerable attention in the bioanalytical field owing to its advantages in productivity, animal welfare, comparable affinity, and high specificity. However, a broad understanding of the application of IgY-based immunoassay for the detection of chemical and biological hazards in food samples remains limited. Here, we briefly summarized the diversity, structure, and production of IgY including polyclonal and monoclonal formats. Then, a comprehensive overview of the principles, designs, and applications of IgY-based immunoassays for these hazards was reviewed and discussed, including food-borne pathogens, food allergens, veterinary drugs, pesticides, toxins, endocrine disrupting chemicals, etc. Thus, the trend of IgY-based immunoassays is expected, and more IgY types, higher sensitivity, and diversification of recognition-to-signal manners are necessary in the future.
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Affiliation(s)
- Leina Dou
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Yingjie Zhang
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Yuchen Bai
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Yuan Li
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Minggang Liu
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Shibei Shao
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Qing Li
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Wenbo Yu
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Jianzhong Shen
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
| | - Zhanhui Wang
- College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, People's Republic of China
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Zhuang Z, Huang Y, Yang Y, Wang S. Identification of AFB1-interacting proteins and interactions between RPSA and AFB1. JOURNAL OF HAZARDOUS MATERIALS 2016; 301:297-303. [PMID: 26372695 DOI: 10.1016/j.jhazmat.2015.08.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/25/2015] [Accepted: 08/27/2015] [Indexed: 06/05/2023]
Abstract
A method using immobilized affinity chromatography (IAC) was developed to screen for aflatoxin B1 (AFB1)-binding proteins. AFB1 and bovine serum albumin (BSA) coupled protein (BSA-AFB1) was prepared using 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride. The resulting coupled compound was immobilized onto PVDF transfer membranes, which were then incubated with total protein from mouse liver. AFB1-binding proteins were eluted, after non-specific washing, by specific elution, and the eluted proteins were analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Two candidate AFB1-binding proteins were identified by liquid chromatography-tandem mass spectrometry as the 40S ribosomal protein SA (RPSA) and a putative uncharacterized protein. RPSA and AFB1 interactions were further analyzed by ELISA in vitro and laser confocal immunofluorescence analysis in vivo. The results from ELISA and immunofluorescence showed that RPSA efficiently bound AFB1 in vitro and in vivo. This study's conclusion laid the foundation for further exploration of the role of AFB1-binding proteins in AFB1 toxicology towards hepatocytes and the entry pathway of AFB1 into hepatocytes.
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Affiliation(s)
- Zhenhong Zhuang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Yaling Huang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yanling Yang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shihua Wang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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He J, Hu J, Thirumalai D, Schade R, Du E, Zhang X. Development of indirect competitive ELISA using egg yolk-derived immunoglobulin (IgY) for the detection of Gentamicin residues. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2015; 51:8-13. [PMID: 26513166 DOI: 10.1080/03601234.2015.1080479] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Gentamicin (Gent) is an aminoglycoside antibiotic being used in livestock sector. Gent residues could cause some genetic disorders by nonsense mutations. This study aimed to develop IgY-based ELISA for the detection of Gent in animal products. Gent was conjugated with Bovine serum albumin (BSA) by carbodiimide method for further immunization in the laying chickens. PEG-6000 extraction method was employed to extract IgY from the egg yolk. The titer of anti-Gent-IgY attained the peak of 1:256,000 after the 5(th) booster immunization. Checkerboard titration confirmed that, anti-Gent IgY in 1:2,000 dilution could give an Optical Density (OD) 1.0 at 2 µg mL(-1) of Gent-OVA coating concentration. IgY-based indirect competitive ELISA (Ic-ELISA) showed that, the IC50 value of anti-Gent IgY was 2.69 ng mL(-1) and regression curve equation was y = -16.27x + 56.97 (R(2) = 0.95, n = 3), confirming that, the detection limit (LOD, IC10 value) was 0.01 ng mL(-1). Recoveries from fresh milk, pork and chicken samples were ranged from 69.82% to 94.32%, with relative standard deviation lower than 10.88%. Our results suggested that generated anti-Gent IgY antibodies can be used in routine screening analysis of Gent residues in food samples.
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Affiliation(s)
- Jinxin He
- a College of Animal Science, Tarim University , Alaer, Aksu Xinjiang , China
- b College of Veterinary Medicine, Northwest A&F University , Yangling, Shaanxi , China
| | - Jianjun Hu
- a College of Animal Science, Tarim University , Alaer, Aksu Xinjiang , China
| | - Diraviyam Thirumalai
- b College of Veterinary Medicine, Northwest A&F University , Yangling, Shaanxi , China
| | - Ruediger Schade
- b College of Veterinary Medicine, Northwest A&F University , Yangling, Shaanxi , China
| | - Enqi Du
- b College of Veterinary Medicine, Northwest A&F University , Yangling, Shaanxi , China
| | - Xiaoying Zhang
- a College of Animal Science, Tarim University , Alaer, Aksu Xinjiang , China
- b College of Veterinary Medicine, Northwest A&F University , Yangling, Shaanxi , China
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