文献类型： 外文期刊

作者： Qu, Yang ¹ ; Yu, Shenghao ² ; Gu, Haotian ³ ; Wang, Wen ⁴ ; Wang, Wenbo ⁵ ; He, Zhaoying ⁶ ; Shan, Hong ⁷ ; Gao, Min ⁸ ; Zhao, Xin ⁹ ; Wei, Chao ¹⁰ ; Tao, Tingting ¹¹ ; Zhao, Guanghua ¹² ; Zhou, Changyan ¹ ; Suo, Yujuan ¹ ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Lab Qual & Safety Risk Assessment Agroprod, Minist Agr & Rural Affairs, Shanghai, Peoples R China

2.Shanghai Municipal Adm Market Regulat, Informat Applicat Res Ctr, Shanghai, Peoples R China

3.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai, Peoples R China

4.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, MOA Lab Qual & Safety Risk Assessment Agroprod Han, Hangzhou, Peoples R China

5.Shandong Acad Agr Sci, Inst Agr Stand & Testing Technol Agriprod, Lab Qual & Safety Risk Assessment Agroprod, Minist Agr & Rural Affairs, Jinan, Peoples R China

6.Beijing Acad Agr & Forestry Sci, Inst Qual Stand & Testing Technol, Beijing, Peoples R China

7.Heilongjiang Acad Agr Sci, Qual & Safety Inst Agr Prod, Harbin, Peoples R China

8.Chinese Acad Agr Sci, Inst Food Sci & Technol, Beijing, Peoples R China

9.Tianjin Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Tianjin, Peoples R China

10.Sichuan Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Lab Qual & Safety Risk Assessment Agroprod, Minist Agr & Rural Affairs, Chengdu, Peoples R China

11.Jiangsu Acad Agr Sci, Inst Food Safety & Nutr, Key Lab Control Technol & Stand Agroprod Safety &, Minist Sci & Technol, Nanjing, Peoples R China

12.Henan Acad & Agr Sci, Res Inst Agr Qual Stand & Testing Tech, Zhengzhou, Peoples R China

关键词： Diarrheal syndrome food poisoning; ready-to-eat vegetable; greenhouse; microbial risk assessment

期刊名称：FOOD QUALITY AND SAFETY （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 2399-1399

年卷期： 2024 年 8 卷

页码：

收录情况： SCI

摘要： Objectives: Bacillus cereus isolates from vegetables can cause diarrheal syndrome food poisoning. Lettuce, the most highly consumed ready-to-eat vegetable, poses a significant risk of B. cereus exposure. Hence, B. cereus monitoring and evaluation during cultivation are essential for preventing foodborne illnesses caused by this food-pathogen combination. However, the impact of different cultivation practices on B. cereus contamination in lettuce currently remains unclear. Furthermore, a validity indicator for the experimental models cannot be effectively validated under field conditions. Materials and Methods: Herein, we assessed the risk of B. cereus exposure using lettuce grown under two different cultivation farming systems in China (open-field versus greenhouse) using a quantitative microbial risk assessment model. Tukey's mean comparison method and kernel density estimation frequency distribution statistics were used for model validation using environmental samples and lettuce. Results: The mean concentration of B. cereus in open-field-grown lettuce was significantly higher than that in greenhouse-grown lettuce (P<0.05). No significant differences were observed between measured, formula-calculated, and risk assessment values in environmental samples or lettuce (P>0.05), verifying the accuracy of the risk model. Conclusion: Soil solarization, complete manure treatment, usage of mulch films, and irrigation water quality should be considered in agricultural practices to control B. cereus concentrations in lettuce. Overall, we found that B. cereus was more abundant in open-field-grown lettuce, and we provide a risk evaluation framework that can guide farmers and policy-makers to control B. cereus contamination in farm-to-fork lettuce chains in China.