Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis

The quality of raw camel milk is affected by its bacterial composition and diversity. However, few studies have investigated the bacterial composition and diversity of raw camel milk. In this study, we obtained 20 samples of camel milk during spring and summer in Urumqi and Hami, Xinjiang, China. Si...

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Main Authors: Miao Sun, Wei Shao, Zhengyu Liu, Xianlan Ma, He Chen, Nan Zheng, Yankun Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2024.1367116/full
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author Miao Sun
Miao Sun
Wei Shao
Zhengyu Liu
Zhengyu Liu
Xianlan Ma
He Chen
Nan Zheng
Yankun Zhao
Yankun Zhao
author_facet Miao Sun
Miao Sun
Wei Shao
Zhengyu Liu
Zhengyu Liu
Xianlan Ma
He Chen
Nan Zheng
Yankun Zhao
Yankun Zhao
author_sort Miao Sun
collection DOAJ
description The quality of raw camel milk is affected by its bacterial composition and diversity. However, few studies have investigated the bacterial composition and diversity of raw camel milk. In this study, we obtained 20 samples of camel milk during spring and summer in Urumqi and Hami, Xinjiang, China. Single-molecule real-time sequencing technology was used to analyze the bacterial community composition. The results revealed that there were significant seasonal differences in the bacterial composition and diversity of camel milk. Overall, Epilithonimonas was the most abundant bacterial genus in our samples. Through the annotated genes inferred by PICRUSt2 were mapped against KEGG database. Non-parametric analysis of the bacterial community prediction function revealed a strong bacterial interdependence with metabolic pathways (81.83%). There were clear regional and seasonal differences in level 3 metabolic pathways such as fat, vitamins, and amino acids in camel milk. In addition, we identified lactic acid bacteria in camel milk with antibacterial and anti-tumor activities. Our findings revealed that camel milk from Xinjiang had serious risk of contamination by psychrophilic and pathogenic bacteria. Our research established a crucial theoretical foundation for ensuring the quality and safety of camel milk, thereby contributing significantly to the robust growth of China’s camel milk industry.
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spelling doaj.art-7eb16e5c81b044cd876846132a0db0042024-03-12T14:01:20ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-03-011510.3389/fmicb.2024.13671161367116Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysisMiao Sun0Miao Sun1Wei Shao2Zhengyu Liu3Zhengyu Liu4Xianlan Ma5He Chen6Nan Zheng7Yankun Zhao8Yankun Zhao9Institute of Quality Standards and Testing Technology for Agro-Products, Xinjiang Academy of Agricultural Sciences, Laboratory of Quality and Safety Risk Assessment for Agro-products, Ministry of Agriculture, Urumqi, ChinaCollege of Animal Science Xinjiang Agriculture University, Urumqi, ChinaCollege of Animal Science Xinjiang Agriculture University, Urumqi, ChinaInstitute of Quality Standards and Testing Technology for Agro-Products, Xinjiang Academy of Agricultural Sciences, Laboratory of Quality and Safety Risk Assessment for Agro-products, Ministry of Agriculture, Urumqi, ChinaCollege of Animal Science Xinjiang Agriculture University, Urumqi, ChinaInstitute of Quality Standards and Testing Technology for Agro-Products, Xinjiang Academy of Agricultural Sciences, Laboratory of Quality and Safety Risk Assessment for Agro-products, Ministry of Agriculture, Urumqi, ChinaInstitute of Quality Standards and Testing Technology for Agro-Products, Xinjiang Academy of Agricultural Sciences, Laboratory of Quality and Safety Risk Assessment for Agro-products, Ministry of Agriculture, Urumqi, ChinaMinistry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, ChinaInstitute of Quality Standards and Testing Technology for Agro-Products, Xinjiang Academy of Agricultural Sciences, Laboratory of Quality and Safety Risk Assessment for Agro-products, Ministry of Agriculture, Urumqi, ChinaMinistry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, ChinaThe quality of raw camel milk is affected by its bacterial composition and diversity. However, few studies have investigated the bacterial composition and diversity of raw camel milk. In this study, we obtained 20 samples of camel milk during spring and summer in Urumqi and Hami, Xinjiang, China. Single-molecule real-time sequencing technology was used to analyze the bacterial community composition. The results revealed that there were significant seasonal differences in the bacterial composition and diversity of camel milk. Overall, Epilithonimonas was the most abundant bacterial genus in our samples. Through the annotated genes inferred by PICRUSt2 were mapped against KEGG database. Non-parametric analysis of the bacterial community prediction function revealed a strong bacterial interdependence with metabolic pathways (81.83%). There were clear regional and seasonal differences in level 3 metabolic pathways such as fat, vitamins, and amino acids in camel milk. In addition, we identified lactic acid bacteria in camel milk with antibacterial and anti-tumor activities. Our findings revealed that camel milk from Xinjiang had serious risk of contamination by psychrophilic and pathogenic bacteria. Our research established a crucial theoretical foundation for ensuring the quality and safety of camel milk, thereby contributing significantly to the robust growth of China’s camel milk industry.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1367116/fullcamel milksingle molecule real-timebacterial diversitypsychrophilic bacteriapathogenic bacteria
spellingShingle Miao Sun
Miao Sun
Wei Shao
Zhengyu Liu
Zhengyu Liu
Xianlan Ma
He Chen
Nan Zheng
Yankun Zhao
Yankun Zhao
Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis
Frontiers in Microbiology
camel milk
single molecule real-time
bacterial diversity
psychrophilic bacteria
pathogenic bacteria
title Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis
title_full Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis
title_fullStr Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis
title_full_unstemmed Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis
title_short Microbial diversity in camel milk from Xinjiang, China as revealed by metataxonomic analysis
title_sort microbial diversity in camel milk from xinjiang china as revealed by metataxonomic analysis
topic camel milk
single molecule real-time
bacterial diversity
psychrophilic bacteria
pathogenic bacteria
url https://www.frontiersin.org/articles/10.3389/fmicb.2024.1367116/full
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