There are also good and bad bacteria, which bacteria are good for human health? What are the uses?

Lactic acid bacteria, yeast, Bacillus subtilis, streptococcus, and Pediococcus beer's are all bacteria that are beneficial to human health; It can effectively inhibit the growth of cholesterol, effectively discharge blood congestion in the body, promote blood circulation in the body, effectively clean wounds, and can also play a role in some viruses, and can also effectively develop relevant vaccines.

Probiotic yeast, beer chips, cocci, and streptococcus lactis are beneficial to the body, they are a natural starter culture, which is a tiny cell organism that is invisible to the naked eye, usually used to make bread or yogurt, which is conducive to promoting gastrointestinal peristalsis and digestion, and is very beneficial to the human body.

Probiotics that are beneficial to human health include intestinal probiotics, Bacillus subtilis, lactic acid bacteria, yeast, and bifidobacteria; These strains can supplement nutrients to people, promote the absorption of calcium, iron and vitamins, promote human digestion and absorption, enhance human immunity, and promote intestinal peristalsis.

For example, probiotics, which can maintain the balance of intestinal flora and promote intestinal digestion, as well as lactobacillus, Bacillus subtilis, and Bacillus licheniformis, which can reduce cholesterol and blood lipids, help the body synthesize vitamins and supplement nutrients.

Lactic acid bacteria, yeast, Pediococcus beeriae, Saccharomyces cerevisiae, Streptococcus lactis, etc.

1. Lactic acid bacteria:

Lactic acid bacteria (lab) are a general term for a class of bacteria that can produce large amounts of lactic acid from fermentable carbohydrates. This type of bacteria is extremely widely distributed in nature and has a rich species diversity, including at least 18 genera and a total of more than 200 species. Except for a very few, most of them are essential microflora in the human body and have important physiological functions, which are widely present in the human intestine.

Lactic acid bacteria are not only ideal materials for the study of classification, biochemistry, genetics, molecular biology and genetic engineering (which have important academic value in theory), but also have high application value in important fields closely related to human life such as industry, agriculture and animal husbandry, food and medicine.

2. Yeast:

Yeast is a single-celled fungus and is not a unit of phylogenetic classification. A tiny single-celled microorganism invisible to the naked eye, which can ferment sugar into alcohol and carbon dioxide, distributed throughout nature, is a typical heterotrophic facultative anaerobic microorganism, can survive under aerobic and anaerobic conditions, and is a natural starter culture.

Dry yeast powder or granular products that do not have fermentation power and are intended for human consumption. It can be obtained by yeast puree from breweries, or specially cultivated and dried for human nutritional requirements. In the United States, Japan and some European countries, common food products such as bread, cakes, biscuits and scones are mixed with about 5% edible yeast powder to improve the nutritional value of food.

3. Saccharomyces cerevisiae:

Saccharomyces cerevisiae belongs to the yeast family, is a single-celled organism, oval or spherical, the mode of reproduction is budding reproduction, spore reproduction, conjugation reproduction, simple form but complex physiology, industrial use for winemaking.

4. Pediococcus beer:

Pediococcus ae, a type of probiotic, is found in spoilt beer and brewer's yeast.

Pediococcus aenificus (cells globular in shape, diameter. Acid production from maltose does not produce gas. Dimethyldione can be produced, and the peculiar smell in spoilage beer is related to this ingredient.

The optimum growing temperature is 25 and does not grow at 35. Lethal temperature 60 10min. Highly resistant to hop preservatives.

It can be grown at the time, and the optimal pH is about.

5. Streptococcus lactis:

Streptococcus lactis a morphological streptococcus with a diameter of microns, which is double-spherical, short-chain or long-chained, and generally double-spherical. Gram reaction is positive. Gelatin puncture culture grows in a linear manner and does not liquefy.

Streptococcus lactis is a strongly reduced strain with a white, smooth, shiny colony morphology and a diameter of 1 2 cm.

There are three main types of bacteria used in fermented foods: acetic acid, non-pathogenic corynebacterium and lactic acid bacteria.

It is beneficial to our blood, heart, and other bacteria that cause the disease from A to V. The tonsils that we commonly see here will have Streptococcus A series, which is beneficial to the human body. When the immunity is low, the A series will multiply in large numbers, which can cause tonsillitis, infections, colds, etc.

Therefore, streptococci are beneficial, but can also cause disease if the microbiosis is out of balance. So there is no absolute boundary between this beneficial and pathogenic one. Again, there are many bacteria in the human body that are beneficial, and in the case of some conditions change, or in the case of disorder, some bacteria that were originally beneficial to us become harmful to us.

A lot of bacteria are harmful to us, just get in. Only a part of the bacteria is good for us, like E. coli and so on to help us digest, some mold and so on, or some saliva can help with digestion. However, in some specific cases, beneficial flora can multiply and cause harmful conditions.

1. Beneficial bacteria: bacteria that are beneficial to health, such as probiotics.

2. Conditional harmful bacteria: harmful to the human body under certain conditions, but in general, slightly beneficial to the human body, such as Escherichia coli;

3. Pathogenic bacteria: bacteria that are harmful to humans, such as Bacillus aerugina and Pseudomonas aeruginosa. Wait.