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Health

Bifidobacteria

, medical expert
Last reviewed: 19.11.2021
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Bifidobacteria are gram-positive non-spore-forming immobile sticks. Pleomorphic, diphtheria or clavate with one rounded end and another cone-shaped, staining less intensively. Cells can be coccoid, elongated, bifurcate and even branched; are arranged singly, in pairs, in the form of letters V and Y in short chains or groups in the form of Chinese characters. A typical species is Propionibacterium.

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trusted-source[1], [2], [3], [4], [5], [6], [7], [8], [9], [10]

Cultural properties of bifidobacteria

Most strains of bacteria grow most rapidly under anaerobic conditions, on special media, with an optimum pH of 7.0 at 25-45 ° C.

trusted-source[11], [12], [13], [14], [15], [16], [17], [18], [19]

Biochemical activity of bifidobacteria

Bifidobacteria have a fermentable metabolism. Fermentation products include combinations of propionic and acetic acids. Most strains form ammonia from protein substances.

trusted-source[20], [21], [22], [23], [24], [25], [26], [27]

Ecological niche of bifidobacteria

Human skin, digestive tract of humans and animals: found in dairy products.

trusted-source[28], [29], [30], [31], [32], [33], [34], [35], [36]

Sensitivity to antimicrobial agents

Bifidobacteria are sensitive to the effects of commonly used antiseptics and disinfectants.

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