Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture

Kangding and Litang are the capital and pivotal county respectively within Ganzi. The region's distinctive geographical and climatic environment has endowed yak milk (YM) and its products with unique microbial resources, which play a crucial role in product quality and flavor. Therefore, it is...

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Main Authors: Jie Zhang, Yangbo Jiao, Kaiyang Liu, Wenyou Situ, Bilige Menghe, Yongfu Chen, Musu Zha
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Food Chemistry: X
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590157525000446
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author Jie Zhang
Yangbo Jiao
Kaiyang Liu
Wenyou Situ
Bilige Menghe
Yongfu Chen
Musu Zha
author_facet Jie Zhang
Yangbo Jiao
Kaiyang Liu
Wenyou Situ
Bilige Menghe
Yongfu Chen
Musu Zha
author_sort Jie Zhang
collection DOAJ
description Kangding and Litang are the capital and pivotal county respectively within Ganzi. The region's distinctive geographical and climatic environment has endowed yak milk (YM) and its products with unique microbial resources, which play a crucial role in product quality and flavor. Therefore, it is important to understand their microbiota. We analyzed microbiota and metabolic pathways in YM. Results revealed 207 species, with Pseudomonas unclassified, Acinetobacter johnsonii dominant in YM, and Lactobacillus delbrueckii, Streptococcus thermophilus in fermented yak milk (FYM). YM exhibited lower microbial and bacteriophage diversity. Bacteriophage diversity was primarily targeting harmful microbes. Yak and camel milk showed similarities, while koumiss and fermented camel milk shared dominant bacteria. Metabolic pathways in YM were enriched with carbohydrates, amino acids, fats, and purine metabolism. In conclusion, this study provides information on the microbial resources and related metabolic pathways in yak milk and naturally fermented yak milk in the Ganzi region of China.
format Article
id doaj-art-ed9dced76c02472eaccd696170fef497
institution Kabale University
issn 2590-1575
language English
publishDate 2025-01-01
publisher Elsevier
record_format Article
series Food Chemistry: X
spelling doaj-art-ed9dced76c02472eaccd696170fef4972025-02-12T05:32:31ZengElsevierFood Chemistry: X2590-15752025-01-0125102198Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefectureJie Zhang0Yangbo Jiao1Kaiyang Liu2Wenyou Situ3Bilige Menghe4Yongfu Chen5Musu Zha6Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Hohhot, Inner Mongolia 010018, ChinaKey Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Hohhot, Inner Mongolia 010018, ChinaKey Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Hohhot, Inner Mongolia 010018, ChinaNational Center of Technology Innovation for Dairy, Hohhot, Inner Mongolia 010080, ChinaKey Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Hohhot, Inner Mongolia 010018, ChinaKey Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Hohhot, Inner Mongolia 010018, ChinaKey Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Hohhot, Inner Mongolia 010018, China; Corresponding author at: Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China.Kangding and Litang are the capital and pivotal county respectively within Ganzi. The region's distinctive geographical and climatic environment has endowed yak milk (YM) and its products with unique microbial resources, which play a crucial role in product quality and flavor. Therefore, it is important to understand their microbiota. We analyzed microbiota and metabolic pathways in YM. Results revealed 207 species, with Pseudomonas unclassified, Acinetobacter johnsonii dominant in YM, and Lactobacillus delbrueckii, Streptococcus thermophilus in fermented yak milk (FYM). YM exhibited lower microbial and bacteriophage diversity. Bacteriophage diversity was primarily targeting harmful microbes. Yak and camel milk showed similarities, while koumiss and fermented camel milk shared dominant bacteria. Metabolic pathways in YM were enriched with carbohydrates, amino acids, fats, and purine metabolism. In conclusion, this study provides information on the microbial resources and related metabolic pathways in yak milk and naturally fermented yak milk in the Ganzi region of China.http://www.sciencedirect.com/science/article/pii/S2590157525000446Yak milkNatural fermentationShotgun metagenomics sequencing technologyMicrobial diversity and pathway
spellingShingle Jie Zhang
Yangbo Jiao
Kaiyang Liu
Wenyou Situ
Bilige Menghe
Yongfu Chen
Musu Zha
Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture
Food Chemistry: X
Yak milk
Natural fermentation
Shotgun metagenomics sequencing technology
Microbial diversity and pathway
title Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture
title_full Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture
title_fullStr Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture
title_full_unstemmed Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture
title_short Characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics: A study from Ganzi Tibetan autonomous prefecture
title_sort characterizing microbial diversity and metabolic pathways in yak milk and fermented yak milk based on metagenomics a study from ganzi tibetan autonomous prefecture
topic Yak milk
Natural fermentation
Shotgun metagenomics sequencing technology
Microbial diversity and pathway
url http://www.sciencedirect.com/science/article/pii/S2590157525000446
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