Related Experiment Video
Updated: Dec 27, 2025
09:31
Evaluation of Microbial Safety of Dairies using Bacterial Proteomic Profiling via MALDI Approach
Published on: October 7, 2025
368
Milk Microbiota: What Are We Exactly Talking About?
Georgios Oikonomou1, Maria Filippa Addis2, Christophe Chassard3
1Institute of Veterinary Science, University of Liverpool, Neston, United Kingdom.
Frontiers in Microbiology
|March 3, 2020
Summary
Milk harbors diverse microbial communities, or microbiota, in various hosts. This review explores milk microbiota composition, influencing factors, and its role in maternal and infant health, opening new research avenues.
Area of Science:
- Microbiology
- Host-microbe interactions
- Human and animal health
Background:
- Milk was once considered sterile but is now known to host a complex and diverse microbial community.
- The milk microbiota has been documented across various hosts, with growing scientific interest.
- Understanding milk microbiota is crucial for maternal and offspring health.
Purpose of the Study:
- To define and characterize milk microbiota across different hosts, including humans and ruminants.
- To compare the microbial composition of milk between humans and ruminants.
- To explore the existence of a core milk microbiota.
Main Methods:
- Literature review and synthesis of existing studies on milk microbiota.
- Comparative analysis of milk microbial composition in humans and ruminants.
- Discussion of factors influencing milk microbiota composition.
Main Results:
- Milk harbors a diverse microbial community, challenging previous assumptions of sterility.
- Significant variations and potential commonalities exist in milk microbiota across hosts.
- Host, environmental, and methodological factors influence milk microbiota composition.
Conclusions:
- Milk microbiota plays a significant role in maternal and offspring physiology and health.
- The enteromammary pathway hypothesis warrants further investigation.
- Further research is needed to address open questions and explore new avenues in milk microbiota research.
Related Concept Videos
01:24Microbial Classification System
701
Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
701
01:27Microbial Growth Media
1.1K
Microbial growth media are essential tools in microbiology, providing the nutrients and conditions necessary to cultivate and study microorganisms. These media are categorized by their composition, consistency, and functional roles, enabling researchers to investigate microbial physiology, behavior, and interactions.Types and Consistencies of Growth MediaGrowth media can be solid, liquid, or semisolid. Solid media, often agar-based, allow visible colony growth for isolation and enumeration.
1.1K
01:23Microbial Fermentation
1.2K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.2K
01:29Bacterial Flora of the Large Intestine
1.4K
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
1.4K
01:23Anatomy of the Intestines
86.3K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
86.3K
01:29Modern Molecular Taxonomy
505
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
505