Quantitative characterization and dynamics of bacterial communities in ready-to-eat chicken using high-throughput sequencing combined with internal standard-based absolute quantification
文献类型： 外文期刊
作者： Yi, Zhengkai 1 ; Qiu, Mengjia 1 ; Xiao, Xingning 1 ; Ma, Jiele 1 ; Yang, Hua 1 ; Wang, Wen 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Agro Prod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, MOA Lab Qual & Safety Risk Assessment Agro Prod Ha, Hangzhou, Peoples R China
2.Univ Shanghai Sci & Technol, Sch Hlth Sci & Engn, Shanghai, Peoples R China
关键词： High-throughput sequencing; Internal standard method; Ready-to-eat chicken; Absolute abundance
期刊名称：FOOD MICROBIOLOGY （ 影响因子：5.3； 五年影响因子：5.5 ）
ISSN： 0740-0020
年卷期： 2024 年 118 卷
页码：
收录情况： SCI
摘要： Ready-to-eat (RTE) chicken products are prone to bacterial contamination, posing foodborne illness risks. High throughput sequencing (HTS) has been widely used to study the distribution of pathogenic and spoilage bacteria in RTE chicken products but lacks quantitative data on taxa abundances. In this study, we employed a method combining HTS with absolute quantification, using Edwardsiella tarda as an internal standard strain, to achieve the relative and absolute abundances of microbiota in RTE chicken products stored at 4 and 25 degrees C. The results showed that the addition of appropriate concentration of internal standard strains exhibited no significant impact on the structure composition, relative abundance, and absolute abundance of bacterial communities in chicken meat, achieving comprehensive absolute quantification in RTE chicken products. Furthermore, the absolute abundance of bacterial genera at the end of storage followed a log-normal distribution, with most genera having an absolute abundance between 103 and 105 CFU/g. This study provides insights into the quantification of bacterial communities in RTE chicken products, laying a foundation for the development of strategies to extend the shelf life of RTE products.
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