What are the functions of bifidobacteria?

Bifidobacterium is an important type of bacteria needed by the normal human intestine. It can effectively clean up intestinal waste and improve intestinal constipation. It also has certain nutritional elements that can bring nutrients to the human intestine and is very good for the body. Bifidobacterium can also form a protective film in the human intestine to prevent disease.

The efficacy of bifidobacteria

Bifidobacteria have become an important feature of human health. Therefore, Bifidobacterium is called the "health guardian" of human beings, and it has extremely important functions in human life activities:

It is the security police in the human intestine

Bifidobacteria living in the intestines grow on the intestinal mucosa, forming a "biofilm barrier", which is like building a Great Wall of Steel on the surface of the human intestine, acting as a public security police. This causes the invading pathogenic bacteria to lose their foothold in the intestines for growth and reproduction. Not only that, these beneficial bacteria can also stimulate the intestinal immune system and lymphoid tissue to produce secretory antibodies - immunoglobulin A. Activate the nonspecific immune function of T cells and cause the proliferation of neutrophils and macrophages. Promote NK cells (natural killer cells), induce the production of various cytokines such as interferon, interleukin, tumor necrosis factor, etc., enhance the body's immune function, and improve the ability to resist infection, cell mutation, tumor, and delay aging. At the same time, acidic substances such as lactic acid and acetic acid produced by the metabolism of bifidobacteria keep the intestinal environment acidic. An acidic environment is not conducive to the growth of harmful bacteria in the intestines, which can suppress evil with good and maintain human health.

It is the scavenger of human intestines

The lactic acid and acetic acid secreted by bifidobacteria stimulate the intestinal wall, promote intestinal peristalsis, maintain normal bowel function, and excrete harmful and toxic substances in the intestines in a timely manner. At the same time, Bifidobacteria can also decompose various harmful substances in the body. Some of these harmful substances can induce cancer, cause cancer or accelerate aging. In addition, bifidobacteria can prevent the absorption of excess cholesterol, accelerate the excretion of harmful substances and toxins in the intestines, and act as a scavenger.

Synthesize certain nutrients

Probiotics in the intestines synthesize essential B vitamins such as vitamin K and B1, B2, B12, folic acid, etc. in the human intestines. The human body cannot synthesize vitamin K by itself and must rely on probiotics in the intestines. Therefore, probiotics are the producers of the "biopharmaceutical factory" in the human body.

Biological characteristics

Various functional oligosaccharides are used as carbon sources to cultivate various bacteria. Experiments have shown that many oligosaccharides with bifidobacterial effects can be utilized by bifidobacteria but cannot be utilized by many putrefactive bacteria in the intestines. Various bifidobacteria factors were tested on humans: 18 elderly people aged 50 to 93 were given 14 g of isomaltooligosaccharide every day. After 10 days, the bifidobacteria in their stool increased from 3.2% to 12.6%, and after two weeks, it increased to 20%. Their intestinal microecology was almost the same as that of young children (4 to 6 years old). Two weeks after stopping consumption, the number of bifidobacteria in the intestines returned to the level before the test. In addition, when adults aged 26 to 48 years old were given 14g of isomaltooligosaccharide per day, the percentage of bifidobacteria increased from 14.9% to 26.8% after 10 days. Experiments with other oligosaccharides have yielded similar results in promoting the growth of Bifidobacterium. The number of bifidobacteria in the intestines of the subjects increased by 10 to 100 times (depending on the individual's physical condition).

By consuming bifidobacteria, as the number of intestinal bifidobacteria increases significantly, human health is improved to varying degrees, such as constipation is relieved, diarrhea is stopped, stool becomes softer, odor is reduced, immunity is enhanced, white blood cells increase, and harmful cholesterol decreases. Oligosaccharides, which are bifidobacterial factors, are a type of indigestible sugar. Eating them in moderation can regulate the intestines, and they can also adjust the sweetness of food. However, if the intake is insufficient, the effect will not be obvious.