Probiotics are a kind of active microorganisms that are beneficial to the host. They are the general name of active beneficial microorganisms that can produce clear health care function, thus improving the microecological balance of the host and playing a beneficial role. The beneficial bacteria or fungi in human and animals mainly include Clostridium butyricum, lactic acid bacteria, Bifidobacterium, Lactobacillus acidophilus, actinomycetes, yeast and so on. At present, the most studied products in the world are mainly compound active probiotics composed of the above microorganisms, which are widely used in bioengineering, industry and agriculture, food safety and life and health.

Probiotics Since the early 1990s, various "probiotic" health products have swept the world. At the same time, the study of "probiotics" has become a worldwide research hotspot. What are probiotics? The internationally recognized definition in the field of nutrition is that probiotics are bacteria beneficial to animals and can be taken directly as food additives to maintain the balance of intestinal flora.

Probiotics can relieve the symptoms of lactose intolerance and promote the absorption of nutrients: Probiotics help to digest nutrients in the intestine. Can decompose lactose into lactic acid and reduce lactose intolerance. Bifidobacterium and lactobacillus can not only produce vitamins B 1, B2, B6, B 12, nicotinic acid, folic acid and other vitamins for the body's needs, but also ensure the supply of vitamins by inhibiting some vitamin decomposing bacteria. In addition, Bifidobacterium can also reduce blood ammonia and improve liver function.

Prevention or improvement of diarrhea: bad eating habits or taking antibiotics will break the balance of intestinal flora, which will lead to diarrhea. Supplementing probiotics is helpful to balance intestinal flora, restore normal intestinal pH and relieve diarrhea symptoms.

Relieve the symptoms of lactose intolerance: Lactic acid bacteria can help the human body decompose lactose, relieve diarrhea, flatulence and other uncomfortable symptoms, and can be eaten with milk.

Prevention of reproductive system infection: Lactobacillus acidophilus and Ligafu bacteriostatic spray in yogurt can inhibit the reproduction of Candida albicans in vagina. Double-blind controlled trials in Europe have confirmed this. Patients were supplemented with active probiotics 10ml daily. The results show that the incidence of reproductive system infection is greatly reduced, and long-term supplementation of active probiotics is helpful to repair the microcirculation of reproductive system.

Probiotics can produce biological antagonism and enhance human immunity: probiotics can produce organic acids, free fatty acids, hydrogen peroxide and bacteriocin, and inhibit the growth of other harmful bacteria; "Biological hypoxia" greatly reduces aerobic pathogenic bacteria. Probiotics can colonize mucosa, skin and other surfaces or cells, forming a biological barrier to prevent the colonization of pathogenic microorganisms, and play a role in occupying space, competing for nutrition, mutual benefit or antagonism. It can also stimulate the nonspecific immune function of the body, improve the activity of natural killer (NK) cells, enhance the secretion of intestinal immunoglobulin IgA, and improve the barrier function of the intestine.

Probiotics can reduce serum cholesterol, which may be related to its regulation and utilization of endogenous metabolites and acceleration of short-chain fatty acid metabolism. The microecological preparation of Bifidobacterium and Lactobacillus can convert cholesterol into fecal sterol which is not absorbed by human body after taking it. Thereby lowering the cholesterol level.

Probiotics have many amazing effects, but these different effects are highly dependent on "strain specificity". That is to say, through a large number of long-term clinical studies, it is confirmed that a specific probiotic strain has a certain clear function, but it does not mean that different strains of other probiotics of the same species must have the same or similar functions. After years of scientific research and clinical confirmation, the specific cooperation of some special strains can prevent and alleviate some health problems such as intestinal syndrome, allergy and respiratory infection. In particular, the antibacterial spray of Ricafor is helpful to repair reproductive system diseases caused by pathogenic bacteria infection. But this does not mean that any other similar strain products have the same effect.

The digestive tract environment of human body is very complicated, and strains that can survive after gastric acid, bile and other environments can reach the large intestine to play a role.

1 10,000 is valid. China's lactic acid bacteria standard clearly stipulates that the number of live bacteria in yogurt should reach per milliliter 1 10,000. Otherwise, the number of viable bacteria that eventually reach the large intestine cannot be guaranteed, and the curative effect cannot be guaranteed.

Yogurt containing probiotics. In a healthy state, dairy products containing probiotics can usually be selected as snacks, but attention should be paid to buying fresh yogurt stored at low temperature.

Formula milk containing probiotics. Probiotics are added to some milk powders to make your baby's intestines healthier.

A beverage containing lactic acid bacteria. Yogurt in the supermarket contains a lot of lactic acid bacteria. But don't drink too much. Don't drink more than 2 bottles a day in a healthy state. If you are sick, ask your doctor if you can drink. Fresh cheese also contains probiotics.

Because the biggest feature of probiotics is living bacteria. Probiotics should maintain a certain order of magnitude during the shelf life in order to play their due role as living bacteria. Therefore, from the effect of drinking, if probiotics want to reach the stomach and produce benign effects, they must first survive in the sales process. Therefore, general supermarkets put yogurt in 0-4 environment, and many small shops put probiotic yogurt at room temperature, so the survival of probiotics is limited. Generally, the shelf life of probiotic yogurt is 15-20 days, so consumers should choose the latest probiotic yogurt. Yogurt can't be boiled, heated or packed lightly.

The idea of supplementing probiotics is to eat live bacteria directly, which is similar to airdropping some "good bacteria" to suppress "bad bacteria". The idea of supplementing "prebiotics" is to support beneficial bacteria by providing them with their favorite food, thus inhibiting harmful bacteria.

Prebiotics are a substance and a dietary supplement. By selectively stimulating the growth and activity of one or more bacteria, it has beneficial effects on the host, thus improving the health of the host.

Most prebiotics are not digested by human body when passing through digestive tract, but absorbed by intestinal flora. Most importantly, it only proliferates probiotics that are beneficial to human body, not harmful bacteria that are potentially pathogenic or corrosive to human body.