Biological properties of probiotic kombucha best probiotics for gut health

So far, the microorganisms isolated from various strains used for fermenting and culturing kombucha mainly include: yeast, acetic acid bacteria and lactic acid bacteria. best probiotics for gut health best probiotics for gut health
Yeast. Yeast is a single-celled microorganism, and its taxonomic status is the same as that of mold, which belongs to fungi, except that mold is filamentous single-celled or multicellular fungi. The shapes of yeast cells are spherical, oval, short oval, long oval, lemon-shaped, sausage-shaped, pseudomycelial and so on. Its size is several times larger than that of Acetobacter xylinum, so it is easy to distinguish it from Acetobacter xylinum under a microscope. Yeast is different from bacteria, it likes to live in It grows under acidic conditions, and the optimum pH value for its growth is 4.5-5.5. Under aerobic conditions, yeast can multiply and produce many metabolites that are beneficial to humans, such as VB1, VB2, citric acid, succinic acid and other organic acids, proteins and amino acids, fats, nucleic acid substances, various hormones, etc. . There are many types of yeast that can ferment sugars such as glucose into alcohol and CO2 while growing slowly in the absence of oxygen. Most yeasts can use glucose, fructose, and sucrose as carbon sources and ammonium salts as nitrogen sources, but cannot use nitrates. Although yeast can synthesize a variety of VB, it can grow quickly when VB must be present in the culture medium in the early stage of growth. The most suitable growth temperature of yeast is 25℃~30℃, and the growth limit temperature is 4℃-42℃. Yeast can metabolize sugar to produce various substances, providing nutrients for the growth of acetic acid bacteria and lactic acid bacteria. best probiotics for gut health best probiotics for gut health
Acetobacter xylinum. Acetobacter xylinum has the strongest ability to synthesize cellulose among the acetic bacteria, and its ability to synthesize cellulose is quite amazing. The cell wall of acetic acid bacteria contains cellulose, which is different from other bacteria. Most of the cell walls of other bacteria are mainly composed of N-hexanoyl glucose. Acetobacter xylinum (Acetobacter xylinum) is a rod-shaped bacterium that often exists in single or short chains. Because it is an aerobic bacterium, it needs to grow and multiply rapidly and in large quantities under aerobic conditions. But it is different from other acetic acid bacteria. Under the condition of hypoxia, it can use glucose for anaerobic fermentation. It converts glucose into acetic acid and lactic acid, so it will not die rapidly due to hypoxia. Because of this feature, acetic acid bacteria are not only in kombucha liquid in kombucha liquid In the case of sufficient oxygen on the surface of the culture solution, it can multiply to form a biofilm, and can also form flocs in the bacterial solution, and also maintain a considerable number of bacterial cells in the bacterial solution. It grows better under the conditions of high water content. The optimum temperature for the growth of acetic acid bacteria is 28 ° C, and the limit growth temperature is 5 ° C to 42 ° C. The mortality rate increases at high temperature, but it is not easy to die at low temperature. Most Bacteria like to grow in alkaline conditions, but acetic acid bacteria like to grow in acidic conditions. best probiotics for gut health best probiotics for gut health

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