Quantitative microbial risk assessment indicates very low risk for Vibrio parahaemolyticus foodborne illness from Jeotgal in South Korea

Yukyung Choi, Joohyun Kang, Yewon Lee, Yeongeun Seo, Sejeong Kim, Jimyeong Ha, Hyemin Oh, Yujin Kim, Eunyoung Park, Heeyoung Lee, Soomin Lee, Min Suk Rhee, Yohan Yoon

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a microbial risk assessment was performed for the bacteria Vibrio parahaemolyticus, which causes a foodborne illness following the consumption of Jeotgal, a fermented seafood in South Korea. The assessment comprised of six stages: prod-uct, market, home, consumption, dose-response, and risk. The initial contamination level (IC) was calculated based on the prevalence of V. parahaemolyticus in 90 Jeotgal samples. The kinetic behavior of V. parahaemolyticus was described using predictive models. The data on transportation conditions from manufacturer to market and home were collected through personal com-munication and from previous studies. Data for the Jeotgal consumption status were obtained, and an appropriate probability distribution was established. The simulation models responding to the scenario were analyzed using the @RISK program. The IC of V. parahaemolyticus was estimated using beta distribution [Beta (1, 91)]. The cell counts during transportation were estimated using Weibull and polynomial models [δ = 1 / (0.0718 – 0.0097 × T + 0.0005 × T2)], while the probability distributions for time and temperature were estimated using Pert, Weibull, Uniform, and LogLogistic distributions. Daily average consumption amounts were assessed using the Pareto distribution [0.60284,1.32,Risk Truncate(0,155)]. The results indicated that the risk of V. parahae-molyticus infection through Jeotgal consumption is low in South Korea.

Original languageEnglish
Pages (from-to)463-472
Number of pages10
JournalFisheries and Aquatic Sciences
Volume25
Issue number9
DOIs
Publication statusPublished - 2022

Keywords

  • Foodborne illness
  • Jeotgal
  • Risk assessment
  • Simulation
  • Vibrio parahaemolyticus

ASJC Scopus subject areas

  • Oceanography
  • Biochemistry
  • Aquatic Science
  • Molecular Biology

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