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Analysis of pathogenic characteristics of Vibrio parahaemolyticus isolated in the markets and catering of Yangzhou in 2023
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Mei-Ling DU1, 2, 3, 4, Qiang-Qiang ZHU1, 2, 3, 4, Lei-Zhu GAO1, 2, 3, 4, Dan GU1, 2, 3, 4, *
Journal of Food Safety & Quality | 2025, 16(6) : 309 - 315
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Journal of Food Safety & Quality | 2025, 16(6): 309-315
• Food Analysis and Detection •
Analysis of pathogenic characteristics of Vibrio parahaemolyticus isolated in the markets and catering of Yangzhou in 2023
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Mei-Ling DU1, 2, 3, 4, Qiang-Qiang ZHU1, 2, 3, 4, Lei-Zhu GAO1, 2, 3, 4, Dan GU1, 2, 3, 4, *
Affiliations
  • 1. Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou 225009, China
  • 2. Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
  • 3. Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China
  • 4. Joint International Research Laboratory of Agriculture and Agri-product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
Published: 2025-03-25 doi: 10.19812/j.cnki.jfsq11-5956/ts.20241223001
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Objective To investigate the prevalence, virulence phenotypes, and drug resistance phenotype of Vibrio parahaemolyticus in freshwater food, seafood, and ready-to-eat food in Yangzhou. Methods Freshwater food, seafood and ready-to-eat food samples were collected from 9 sampling points in Yangzhou markets for isolation and identification of Vibrio parahaemolyticus. The motility, hemolytic activity, and drug resistance phenotype of the isolates were analyzed. Results In 2023, a total of 289 samples were collected in the Yangzhou market, from which 63 strains of Vibrio parahaemolyticus were isolated, with an isolation rate of 21.80%. Among them, the isolation rate of freshwater food was 45.35% (39/86), seafood 28.75% (23/80), and ready-to-eat samples 0.81% (1/123), indicating a higher isolation rate in freshwater food compared to seafood in the markets of Yangzhou. The proportion of highly motility strains in freshwater food isolates was 30.77%, higher than that of the seafood isolates (17.39%). However, the proportion of strains with high hemolytic activity was 53.85% in freshwater food isolates, slightly lower than the 60.87% in seafood isolates. Antibiotic resistance profiling showed that all Vibrio parahaemolyticus isolates were resistant to ampicillin and cefazolin, while they were resistant to ceftazidime, tetracycline, ciprofloxacin, chloramphenicol, amikacin, meropenem and gentamicin. Conclusion This study highlights a high detection rate of Vibrio parahaemolyticus in Yangzhou markets and reveals differences in virulence and antibiotic resistance among isolates from different sources, offering valuable insights for monitoring and controlling the pathogen.

Vibrio parahaemolyticus  /  isolation and identification  /  motility  /  hemolytic activity  /  drug resistance phenotype
Mei-Ling DU, Qiang-Qiang ZHU, Lei-Zhu GAO, Dan GU. Analysis of pathogenic characteristics of Vibrio parahaemolyticus isolated in the markets and catering of Yangzhou in 2023[J]. Journal of Food Safety & Quality, 2025 , 16 (6) : 309 -315 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20241223001
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Year 2025 volume 16 Issue 6
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Article Info
doi: 10.19812/j.cnki.jfsq11-5956/ts.20241223001
  • Receive Date：2024-12-23
  • Online Date：2025-07-19
  • Published：2025-03-25
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History
  • Received：2024-12-23
Affiliations
    1. Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou 225009, China
    2. Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
    3. Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225009, China
    4. Joint International Research Laboratory of Agriculture and Agri-product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
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https://castjournals.cast.org.cn/joweb/spaq/EN/10.19812/j.cnki.jfsq11-5956/ts.20241223001
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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