部分市售鲜切水果和现制果汁饮料微生物群落结构及耐药基因特征研究
Study on the microbial community and antimicrobial resistance genes characteristics of some commercially fresh-cut fruits and fruit juices made-in-place
刘玉竹 1张晓嫒 1崔霞 1王迪 1陆峥 1张诣 1王丽丽 1张鹏航 1张寻 1牛彦麟 1陈倩 1马晓晨1
作者信息
- 1. Beijing Center for Disease Prevention and Control,Beijing 100013,China
- 折叠
摘要
目的 分析北京市部分市售鲜切水果和现制果汁饮料微生群落结构和耐药基因分布特征.方法 采用宏基因组测序技术对食品中细菌群落进行注释,使用综合抗生素耐药性数据库(CARD)对注释到的耐药基因进行比对.结果 使用宏基因组测序注释到13 239个菌种,其中相对丰度高于0.10％的共有51个菌种,食源性致病菌有金黄色葡萄球菌(Staphylococcus aureus,3.49％),屎肠球菌(Enterococcus faecium,0.35％),宋内志贺菌(Shigella sonnei,0.33％),单核细胞增生李斯特菌(Listeria monocytogenes,0.27％),粪肠球菌(Enterococcus faecalis,0.26％),艰难梭菌(Clostridioides difficile,0.12％),麦氏弧菌(Vibrio metschnikovii,0.12％)和肠道沙门菌(Salmonella enterica,0.11％).33 个样品中检测到属于38个抗生素类型的855个耐药基因.结论 本研究初步了解到市售鲜切水果和现制果汁饮料中微生物群落结构和耐药基因分布,为进一步开展食品污染物监测提供了依据.
Abstract
Objective To analyze the characteristics of microbial community and antimicrobial resistance genes of some fresh-cut fruits and fruit juices made-in-place in Beijing.Methods Metagenomic sequencing was used to annotate bacterial communities in food,and CARD(the Comprehensive Antibiotic Research Database)database was used to compare the annotated antimicrobial resistance genes.Results A total of 13 239 species were annotated by metagenomic sequencing,of wchich there were 51 bacterial species with relative abundance higher than 0.10％.The foodborne pathogenic bacteria included Staphylococcus aureus(3.49％),Enterococcus faecium(0.35％),Shigella sonnei(0.33％),Listeria monocytogenes(0.27％),Enterococcus faecalis(0.26％),Clostridioides difficile(0.12％),Vibrio metschnikovii(0.12％),and Salmonella enterica(0.11％).A total of 855 antimicrobial resistance genes belonging to 38 antimicrobial types were detected in 33 samples.Conclusions This study provides a preliminary understanding of the characteristics of bacterial community and distribution of antimicrobial resistance genes in commercially available fresh-cut fruits and fruit juices made-in-place,laying the foundation for further monitoring of food contaminants.
关键词
鲜切水果/现制果汁饮料/宏基因组测序/耐药基因Key words
Fresh-cut fruits/Fruit juices made-in-place/Metagenomic sequencing/Antimicrobial resistance gene引用本文复制引用
基金项目
北京市科技计划课题(Z201100008920005)
首都高层次公共卫生人才建设项目(学科骨干-01-027)
出版年
2024
NETL
NSTL
万方数据