Evaluation of the Stress Tolerance of Salmonella with Different Antibiotic Resistance Profiles
文献类型： 外文期刊
作者： Xiao, Xingning 1 ; Tang, Biao 1 ; Liu, Siyi 2 ; Suo, Yujuan 3 ; Yang, Hua 1 ; Wang, Wen 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, MOA Lab Qual & Safety Risk Assessment Agroprod Ha, Inst Agroprod Safety & Nutr, Hangzhou 310021, Peoples R China
2.Hainan Univ, Coll Food Sci & Engn, Haikou 570228, Hainan, Peoples R China
3.Shanghai Acad Agr Sci, Inst Agrifood Stand & Testing Technol, Shanghai 201403, Peoples R China
期刊名称：BIOMED RESEARCH INTERNATIONAL （ 影响因子：3.411； 五年影响因子：3.62 ）
ISSN： 2314-6133
年卷期： 2021 年 2021 卷
页码：
收录情况： SCI
摘要： Disease caused by antibiotic-resistant Salmonella is a serious clinical problem that poses a great threat to public health. The present study is aimed at assessing differences in bacterial kinetics with different antibiotic resistance profiles under environmental stress and at developing microbial tolerance models in lettuce during storage from 4 to 36 degrees C. The drug-resistance phenotypes of 10 Salmonella Typhimurium (S. Typhimurium) isolates were examined using the broth microdilution method. The results of 10 S. Typhimurium isolates in the suspensions showed that a slow trend towards reduction of drug-sensitive (DS) isolates in relation to the others though without statistical difference. Compared to DS S. Typhimurium SA62, greater bacterial reduction was observed in multidrug-resistant (MDR) S. Typhimurium HZC3 during lettuce storage at 4 degrees C (P < 0.05). It was likely that a cross-response between antibiotic resistance and food-associated stress tolerance. The greater growth in lettuce at 12 degrees C was observed for DS S. Typhimurium SA62 compared to MDR S. Typhimurium HZC3 and was even statistically different (P < 0.05), while no significant difference was observed for bacterial growth between MDR S. Typhimurium HZC3 and DS S. Typhimurium SA62 strains in lettuce storage from 16 to 36 degrees C (P > 0.05). The goodness-of-fit indices indicated the Log-linear primary model provided a satisfactory fit to describe the MDR S. Typhimurium HZC3 and DS S. Typhimurium SA62 survival at 4 degrees C. A square root secondary model could be used to describe the effect of temperature (12, 16, 28, and 36 degrees C) on the growth rates of S. Typhimurium HZC3 (adj - R-2 = 0.91, RMSE = 0.06) and S. Typhimurium SA62 (adj - R-2 = 0.99, RMSE = 0.01) derived from the Huang primary model. It was necessary to pay attention to the tolerance of antibiotic resistant bacteria under environmental stress, and the generated models could provide parts of the input data for microbial risk assessment of Salmonella with different antibiotic resistance profile in lettuce.
- 相关文献
作者其他论文 更多>>
-
Risk assessment of Bacillus cereus in lettuce grown in open-field and greenhouse farming systems in China: A comparative study
作者：Qu, Yang;Zhou, Changyan;Suo, Yujuan;Yu, Shenghao;Gu, Haotian;Wang, Wen;Wang, Wenbo;He, Zhaoying;Shan, Hong;Gao, Min;Zhao, Xin;Wei, Chao;Tao, Tingting;Zhao, Guanghua
关键词：Diarrheal syndrome food poisoning; ready-to-eat vegetable; greenhouse; microbial risk assessment
-
Modeling Growth Kinetics of Escherichia coli and Background Microflora in Hydroponically Grown Lettuce
作者：You, Xiaoyan;Yang, Dongqun;Yang, Dongqun;Qu, Yang;Zhao, Xiaoyan;Suo, Yujuan;Guo, Mingming;Zhang, Yangping
关键词：growth model; hydroponically grown lettuce; Escherichia coli; background microflora
-
Population Genetic Analyses and Trichothecene Genotype Profiling of Fusarium pseudograminearum Causing Wheat Crown Rot in Henan, China
作者：Zhang, Jianzhou;Li, Chunying;Zhang, Jiahui;Song, Fengping;Wang, Jianhua;Zhang, Mengyuan;Wang, Wenyu;Suo, Yujuan
关键词：Fusarium crown rot; Fusarium pseudograminearum; trichothecene genotype; mating type
-
Comparing two magnetic separation pretreatment methods for molecular detection using (q)PCR assays targeting Staphylococcus aureus in milk as models
作者：Liao, Xiaoyan;Feng, Bo;Suo, Yujuan;Shao, Yi;Qu, Yang;Huang, Liujuan;Zhang, Donglai;Bai, Yalong;Liao, Xiaoyan;Cui, Yan;Shi, Xianming;Zhang, Donglai
关键词：Magnetic separation; Staphylococcus aureus; Milk; (q)PCR; Detection
-
Chickpea-Derived Modified Antimicrobial Peptides KTA and KTR Inactivate Staphylococcus aureus via Disrupting Cell Membrane and Interfering with Peptidoglycan Synthesis
作者：Zhang, Xinhui;Ma, Peipei;Ismail, Balarabe B.;Yang, Zhehao;Zou, Zhipeng;Ye, Xingqian;Liu, Donghong;Guo, Mingming;Suo, Yujuan
关键词：antimicrobial peptides; Staphylococcus aureus; cell membrane damage; peptidoglycan; antimicrobial mechanism; foodborne pathogen control
-
Exploring magnetic capture to improve the detection of human norovirus in strawberries
作者：Bai, Yalong;Pu, Chunmin;Suo, Yujuan;Qu, Yang;Feng, Bo;Huang, Liujuan;Shao, Yi;Pu, Chunmin;Zhang, Xufu;Dai, Yingchun;Shao, Yi
关键词：human norovirus; detection; magnetic capture; RT-qPCR; strawberry
-
Genetic diversity of Listeria monocytogenes isolates from farm products in Shanghai, China
作者：Suo, Yujuan;Qu, Yang;Bai, Yalong;Lin, Ting;Wang, Jing;Zhou, Changyan;Zhou, Xiujuan;Chen, Wanyi
关键词：Listeria monocytogenes; serotype; multilocus sequence typing (MLST); pulsed field gel electrophoresis (PFGE); whole-genome single nucleotide polymorphism (wgSNP)
