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Current methodologies and future direction of Campylobacter isolation and detection from food matrices, clinical samples, and the agricultural environment. J Microbiol Methods 2022; 201:106562. [PMID: 36049611 DOI: 10.1016/j.mimet.2022.106562] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 12/27/2022]
Abstract
Campylobacter spp. are the leading cause of bacterial foodborne infections in both developed and developing countries. The food commodities primarily attributed to campylobacteriosis include raw milk, poultry, seafood, and fresh produce. Furthermore, insects, animal/bird fecal material, and agricultural water have been shown to be the sources of Campylobacter contamination in these commodities. Both established and emerging species of Campylobacter have been recovered from food and environmental sources. Therefore, optimal detection and isolation of Campylobacter spp., including the emerging species, is critical for improved surveillance, prevention, and traceback of Campylobacter outbreaks. This review focuses on the existing variability in Campylobacter enrichment and isolation procedures used by researchers and regulatory agencies worldwide, for various matrices. Additionally, the challenges associated with developing and validating new culture, molecular, and immunological methods for rapid and sensitive Campylobacter detection are discussed.
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Kim YJ, Kim HS, Chon JW, Kim DH, Hyeon JY, Seo KH. New colorimetric aptasensor for rapid on-site detection of Campylobacter jejuni and Campylobacter coli in chicken carcass samples. Anal Chim Acta 2018; 1029:78-85. [PMID: 29907294 DOI: 10.1016/j.aca.2018.04.059] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 04/19/2018] [Indexed: 12/23/2022]
Abstract
Campylobacter is the most common cause of infectious intestinal disease, with nearly all cases caused by two species: C. jejuni and C. coli. We recently reported a gold nanoparticle-based two-stage aptasensing platform, which was improved in the present study for the rapid and on-site detection of both C. jejuni and C. coli in food samples. Compared to the previous platform, the improved platform yielded a more obvious colour change from red to purple due to the aggregation of gold nanoparticles, and does not require additional time or a pH optimization step for the aptamers to be adsorbed onto the gold nanoparticles. Using a highly specific aptamer that binds to live C. jejuni and C. coli, the improved aptasensor was highly effective for testing pure culture samples. The accuracy of the newly developed platform was comparable (p = 0.688) to that of the gold-standard detection method of tazobactam-supplemented culture, whereas it was superior to the official agar-based detection method (p = 0.016) in a validation study with 50 naturally contaminated chicken carcass samples. This is the first study on a colorimetric sensor that targets both live C. coli and C. jejuni in naturally contaminated samples. In addition, we provide the first evidence that both morphological status and the amount of Campylobacter present play key roles in the effectiveness of colorimetric detection. Thus, suitable selection of an antibody or aptamer with consideration of the morphological status of pathogens in samples is essential for direct detection without enrichment. Our data suggest that the sensor developed in this study can provide an excellent screening method, with a reduction in the detection time from 48 h to 30 min after enrichment, thus saving time, labour, and cost.
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Affiliation(s)
- Young-Ji Kim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Hong-Seok Kim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul, South Korea.
| | - Jung-Whan Chon
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Dong-Hyeon Kim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Ji-Yeon Hyeon
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
| | - Kun-Ho Seo
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul, South Korea.
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Chon JW, Kim YJ, Kim YJ, Jung JY, Bae D, Khan S, Seo KH, Sung K. Addition of Rifampicin to Bolton Broth to Inhibit Extended-Spectrum β-Lactamase-ProducingEscherichia colifor the Detection ofCampylobacter. J Food Sci 2017. [DOI: 10.1111/1750-3841.13761] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jung-Whan Chon
- Div. of Microbiology, Natl. Center for Toxicological Research; US Food and Drug Administration; Jefferson AR 72079 U.S.A
| | - Young-Ji Kim
- KU Center for One Health, College of Veterinary Medicine; Konkuk Univ.; Hwayang-dong Gwangjin-gu Seoul 05029 Republic of Korea
| | - Young-Jo Kim
- Ministry of Food and Drug Safety; Osong 28159 Republic of Korea
| | - Ji Young Jung
- Div. of Microbiology, Natl. Center for Toxicological Research; US Food and Drug Administration; Jefferson AR 72079 U.S.A
| | - Dongryeoul Bae
- Div. of Microbiology, Natl. Center for Toxicological Research; US Food and Drug Administration; Jefferson AR 72079 U.S.A
| | - Saeed Khan
- Div. of Microbiology, Natl. Center for Toxicological Research; US Food and Drug Administration; Jefferson AR 72079 U.S.A
| | - Kun-Ho Seo
- KU Center for One Health, College of Veterinary Medicine; Konkuk Univ.; Hwayang-dong Gwangjin-gu Seoul 05029 Republic of Korea
| | - Kidon Sung
- Div. of Microbiology, Natl. Center for Toxicological Research; US Food and Drug Administration; Jefferson AR 72079 U.S.A
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Kim YJ, Whan CJ, Kim HS, Kim KY, Yim JH, Cho SH, Seo KH. Improvement of Karmali Agar by Supplementation with Tazobactam for Detecting Campylobacter in Raw Poultry. J Food Prot 2016; 79:1982-1985. [PMID: 28221899 DOI: 10.4315/0362-028x.jfp-16-105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, Karmali agar was modified by adding tazobactam (T-Karmali agar) to suppress the growth of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli , which frequently contaminates raw poultry meat. By inoculating 30 Campylobacter spp. strains and 25 ESBL-producing E. coli strains onto Karmali agar and T-Karmali agar containing various concentrations of the antibacterial agent, we determined the optimum concentration of tazobactam to be 4 mg/liter. The Campylobacter spp. isolation rate on T-Karmali agar (13.3%) was higher than that on Karmali agar (8.3%), although the difference was not significant (P > 0.05). However, T-Karmali agar showed a significantly greater selectivity than Karmali agar, as evaluated by comparing the numbers of contaminated agar plates (20.8 versus 82.5%; P < 0.05) and the growth indexes (1.36 versus 2.83) of competing flora. The predominant competing flora on Karmali and T-Karmali agar were identified as ESBL-producing E. coli . Thus, T-Karmali agar might be effective for determining the real prevalence of Campylobacter in raw poultry and, especially, contamination with ESBL-producing E. coli .
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Affiliation(s)
- Young-Ji Kim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 143-701, South Korea
| | - Chon-Jung Whan
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 143-701, South Korea
| | - Hong-Seok Kim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 143-701, South Korea
| | - Kwang-Yeop Kim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 143-701, South Korea
| | - Jin-Hyeok Yim
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 143-701, South Korea
| | - Seung-Hak Cho
- Division of Enteric Diseases, Center for Infectious Diseases, Korea National Institute of Health, Heungdeok-Gu, Cheongju 363-951, South Korea
| | - Kun-Ho Seo
- Center for One Health, College of Veterinary Medicine, Konkuk University, Seoul 143-701, South Korea
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Lohans CT, van Belkum MJ, Li J, Vederas JC. Characterization of bacterial antimicrobial peptides active against Campylobacter jejuni. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0411] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Campylobacter jejuni is one of the major causes of food poisoning, often resulting from the consumption of improperly cooked poultry products. The emergence of C. jejuni strains resistant to conventional antibiotics necessitates the evaluation of other possible treatments or preventative measures to minimize the impact and prevalence of infections. Antimicrobial peptides produced by bacteria have begun to emerge as a potential means of decreasing the levels of C. jejuni in poultry, thereby limiting Campylobacter contamination in associated food products. A number of bacteriocins produced by Gram-positive bacteria have unexpectedly been described as having antimicrobial activity against the Gram-negative C. jejuni. Additionally, some nonribosomal lipopeptides produced by Bacillus and Paenibacillus spp. show efficacy against this pathogen. This review will describe the bacterial antimicrobial peptides reported to be active against C. jejuni, with an emphasis on the characterization of their primary structures. However, for many of these peptides, little is known about their amino acid sequences and structures. Furthermore, there are unusual inconsistencies associated with the reported amino acid sequences for several of the more well-studied bacteriocins. Clarifying the chemical nature of these promising antimicrobial peptides is necessary before their potential utility for livestock protection from C. jejuni can be fully explored. Once these peptides are better characterized, they may prove to be strong candidates for minimizing the impact of Campylobacter on human health.
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Affiliation(s)
- Christopher T. Lohans
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Marco J. van Belkum
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - Jing Li
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
| | - John C. Vederas
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, AB T6G 2G2, Canada
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Bai Y, Cui S, Xu X, Li F. Enumeration and Characterization ofCampylobacterSpecies from Retail Chicken Carcasses in Beijing, China. Foodborne Pathog Dis 2014; 11:861-7. [DOI: 10.1089/fpd.2014.1785] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Yao Bai
- Key Lab of Food Safety Risk Assessment, Ministry of Health, China National Centre for Food Safety Risk Assessment, Beijing, China
- National Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Shenghui Cui
- National Institute for Food and Drug Control, Beijing, China
| | - Xiao Xu
- National Institute for Food and Drug Control, Beijing, China
| | - Fengqin Li
- Key Lab of Food Safety Risk Assessment, Ministry of Health, China National Centre for Food Safety Risk Assessment, Beijing, China
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Yoo JH, Choi NY, Bae YM, Lee JS, Lee SY. Development of a selective agar plate for the detection of Campylobacter spp. in fresh produce. Int J Food Microbiol 2014; 189:67-74. [DOI: 10.1016/j.ijfoodmicro.2014.07.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 07/17/2014] [Accepted: 07/24/2014] [Indexed: 11/29/2022]
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Chon JW, Kim HS, Kim DH, Kim H, Choi IS, Oh DH, Seo KH. Modification of Karmali agar by supplementation with potassium clavulanate for the isolation of Campylobacter from chicken carcass rinses. J Food Prot 2014; 77:1207-11. [PMID: 24988031 DOI: 10.4315/0362-028x.jfp-13-405] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The detection ability and selectivity of Karmali agar was improved by supplementation of an extended-spectrum β-lactamase inhibitor, potassium clavulanate. The optimum concentration of potassium clavulanate (0.5 μg/ml) in Karmali agar was determined by inoculation of 50 Campylobacter and 30 extended-spectrum β-lactamase-producing E. coli strains onto normal and modified Karmali agar containing various concentrations of the agent. Eighty retail carcasses were rinsed with 400 ml of buffered peptone water. The rinse samples were enriched in 2 × blood-free Bolton enrichment broth at 42°C for 48 h and then were streaked onto normal and modified Karmali agar containing 0.5 μg/ml potassium clavulanate. The suspicious colonies were subcultured on Columbia blood agar and confirmed by colony PCR. In chicken carcass samples, the modified Karmali agar showed a significantly greater isolation rate than normal Karmali agar (42.5 versus 21.3%; P < 0.05). Furthermore, the selectivity of the modified Karmali agar was also significantly higher (P < 0.05) than that of the normal Karmali agar, as seen by comparison of the number of contaminated agar plates (83.8 versus 97.5%) and the growth index (1.67 versus 2.91) of the non-Campylobacter colonies.
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Affiliation(s)
- Jung-Whan Chon
- College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hong-Seok Kim
- College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - Dong-Hyeon Kim
- College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hyunsook Kim
- College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - In-Soo Choi
- College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea
| | - Deog-Hwan Oh
- Department of Food Science and Biotechnology and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon 200-701, Republic of Korea
| | - Kun-Ho Seo
- College of Veterinary Medicine, Konkuk University, Seoul 143-701, Republic of Korea.
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