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Microbiota-accessible carbohydrates

Index Microbiota-accessible carbohydrates

Microbiota-accessible carbohydrates (MACs) are carbohydrates that are resistant to digestion by a host's metabolism, and are made available for gut microbes, as prebiotics, to ferment or metabolize into beneficial compounds, such as short chain fatty acids. [1]

23 relations: Akkermansia muciniphila, Bacteroidales, Bacteroides fragilis, Carbohydrate, Cellulose, Clostridia, Digestion, Faecalibacterium, Fermentation, Fungus, Gut flora, Human milk oligosaccharide, Microbiota, Microorganism, Non-communicable disease, Parabacteroides distasonis, Parabacteroides gordonii, Plant, Polysaccharide, Porphyran, Prebiotic (nutrition), Short-chain fatty acid, Tissue (biology).

Akkermansia muciniphila

Akkermansia muciniphila is a species of human intestinal mucin-degrading bacterium, the type species for a new genus, Akkermansia, proposed in 2004 by Muriel Derrien and others.

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Bacteroidales

The order Bacteroidales comprises nine families of environmental bacteria.

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Bacteroides fragilis

Bacteroides fragilis is an obligately anaerobic, Gram-negative, rod-shaped bacterium.

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Carbohydrate

A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water); in other words, with the empirical formula (where m may be different from n).

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Cellulose

Cellulose is an organic compound with the formula, a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units.

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Clostridia

The Clostridia are a highly polyphyletic class of Firmicutes, including Clostridium and other similar genera.

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Digestion

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.

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Faecalibacterium

Faecalibacterium is a genus of bacteria.

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Fermentation

Fermentation is a metabolic process that consumes sugar in the absence of oxygen.

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Fungus

A fungus (plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms.

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Gut flora

Gut flora, or gut microbiota, or gastrointestinal microbiota, is the complex community of microorganisms that live in the digestive tracts of humans and other animals, including insects.

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Human milk oligosaccharide

Human milk oligosaccharides (HMO, also known as human milk glycans) are sugar molecules, that are part of the oligosaccharides group and which can be found in high concentrations exclusively in human breast milk.

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Microbiota

A microbiota is an "ecological community of commensal, symbiotic and pathogenic microorganisms" found in and on all multicellular organisms studied to date from plants to animals.

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Microorganism

A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or in a colony of cells. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from 6th century BC India and the 1st century BC book On Agriculture by Marcus Terentius Varro. Microbiology, the scientific study of microorganisms, began with their observation under the microscope in the 1670s by Antonie van Leeuwenhoek. In the 1850s, Louis Pasteur found that microorganisms caused food spoilage, debunking the theory of spontaneous generation. In the 1880s Robert Koch discovered that microorganisms caused the diseases tuberculosis, cholera and anthrax. Microorganisms include all unicellular organisms and so are extremely diverse. Of the three domains of life identified by Carl Woese, all of the Archaea and Bacteria are microorganisms. These were previously grouped together in the two domain system as Prokaryotes, the other being the eukaryotes. The third domain Eukaryota includes all multicellular organisms and many unicellular protists and protozoans. Some protists are related to animals and some to green plants. Many of the multicellular organisms are microscopic, namely micro-animals, some fungi and some algae, but these are not discussed here. They live in almost every habitat from the poles to the equator, deserts, geysers, rocks and the deep sea. Some are adapted to extremes such as very hot or very cold conditions, others to high pressure and a few such as Deinococcus radiodurans to high radiation environments. Microorganisms also make up the microbiota found in and on all multicellular organisms. A December 2017 report stated that 3.45 billion year old Australian rocks once contained microorganisms, the earliest direct evidence of life on Earth. Microbes are important in human culture and health in many ways, serving to ferment foods, treat sewage, produce fuel, enzymes and other bioactive compounds. They are essential tools in biology as model organisms and have been put to use in biological warfare and bioterrorism. They are a vital component of fertile soils. In the human body microorganisms make up the human microbiota including the essential gut flora. They are the pathogens responsible for many infectious diseases and as such are the target of hygiene measures.

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Non-communicable disease

A non-communicable disease (NCD) is a medical condition or disease that is not caused by infectious agents (non-infectious or non-transmissible).

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Parabacteroides distasonis

Parabacteroides distasonis is a bacterium from the genus of Parabacteroides.

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Parabacteroides gordonii

Parabacteroides gordonii is a Gram-negative, non-spore-forming, rod-shaped and non-motile bacterium from the genus of Parabacteroides which has been isolated from human blood.

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Plant

Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.

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Polysaccharide

Polysaccharides are polymeric carbohydrate molecules composed of long chains of monosaccharide units bound together by glycosidic linkages, and on hydrolysis give the constituent monosaccharides or oligosaccharides.

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Porphyran

Porphyran is a sulfated carbohydrate dervied from red algae of the genus Porphyra.

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Prebiotic (nutrition)

Prebiotics are food ingredients that induce the growth or activity of beneficial microorganisms (e.g., bacteria and fungi).

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Short-chain fatty acid

Short-chain fatty acids (SCFAs), also referred to as volatile fatty acids (VFAs), are fatty acids with two to six carbon atoms.

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Tissue (biology)

In biology, tissue is a cellular organizational level between cells and a complete organ.

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Microbiota accessible carbohydrates.

References

[1] https://en.wikipedia.org/wiki/Microbiota-accessible_carbohydrates

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