Comprehensive guide to nutrition and health care of yogurt
Lgg probiotics, labs probiotics, b-longum (longgen b bacteria), e+ bacteria, ab probiotics, ab100 probiotic yogurt... ...Faced with so many familiar and unfamiliar terms, you may be confused. What are the differences between probiotic yogurts of different strains? What are its effects? Which product has higher nutritional value? Which product should you choose? Our reporter invited relevant experts to answer questions.
1 Probiotics have become fashionable
If you pay a little attention, it is not difficult to find that "probiotics" is a very popular word in the dairy market right now. There are a variety of probiotic yogurts on the refrigerated shelves of supermarkets, and advertisements often appear to give you "tens of millions of probiotics" or "×× billions of probiotics"... In several supermarkets visited by the reporter, whether it is a large supermarket or In small supermarkets, you can see Yili, Mengniu, Guangming, Sanlu, Weiquan and other major yogurt brands in front of the yogurt refrigerated cabinets, all of which have the words "probiotics" prominently or inconspicuously on their outer packaging. The reporter noticed that the outer packaging of a certain brand of yogurt was printed with: "LGG is the world's patented bacterial strain", "promotes the growth of beneficial bacteria in the body", "balances and improves gastrointestinal function", "enhances the body's own immunity" Slogans such as "ability" and "detoxification" show that the manufacturer attaches great importance to "probiotics".
Most of the lactic acid bacteria discovered so far are beneficial to human health, such as Lactobacillus bulgaricus and Streptococcus thermophilus used in fermented dairy products. However, not all lactic acid bacteria are beneficial to human health. Some lactic acid bacteria are harmful to humans, such as Listeria. Probiotics are live microorganisms that can have beneficial health effects on the human body when consumed in sufficient amounts. The probiotics mentioned in fermented milk products currently on the market generally include: Bifidobacterium longum, Bifidobacterium adolescentis, Bifidobacterium animalis, Lactobacillus casei, Lactobacillus acidophilus, Lactobacillus rhamnosus, etc. These probiotics are also lactic acid bacteria. Some of them have strong acid resistance and can withstand the test of human gastric acid, and some can reproduce stably in the human intestine for a period of time. In short, they can provide live probiotics for the human intestine, so they are They are defined as probiotics.
2 Traditional yogurt vs. probiotic yogurt
There are two common yogurt products on the market. One is made of fresh milk with two types of bacteria added (Streptococcus thermophilus and Bulgarian milk). bacillus); the other is a probiotic yogurt made by fermenting the former and adding two other lactic acid bacteria (Lactobacillus acidophilus and Bifidobacterium), which are usually labeled There’s the word “probiotics.”
Traditional yogurt does not contain active lactic acid bacteria, but yogurt with inactive lactic acid bacteria also has nutritional value, because during the fermentation process of lactic acid bacteria, lactose is consumed and a series of metabolites such as vitamins and enzymes are produced. Categories, etc., these metabolites are beneficial to the human body. Probiotic yogurt must contain active lactobacilli. In addition to a series of metabolites that are beneficial to the human body produced during the fermentation process of lactobacilli, probiotic yogurt contains active lactobacilli, which are also helpful in regulating the balance of human intestinal microecology.
Generally speaking, when it comes to lactic acid bacteria fermented yogurt, lactic acid bacteria can be active or inactive; and the biggest feature of probiotic yogurt is the word 'living'. Probiotic yogurt must be kept in the cold chain from production, production to sales, and must maintain a certain number of viable bacteria during the shelf life to ensure quality and better improve human health. At present, there is no standard for probiotic active yogurt in my country, and there are no clear regulations on the shelf life and storage conditions of probiotic products. Therefore, consumers must pay attention to the production date when purchasing probiotic yogurt.
3 Understanding probiotics
Lgg bacteria: The official name of LGG is Lactobacillus rhamnosus. In 1983, two American professors from North Carolina State University isolated it from healthy humans and Obtained a patent. The lgg strain is highly active and resistant to gastric acid, and can colonize in the intestines for up to two weeks.
labs bacteria: The four probiotics included in the labs probiotic group - l-Lactobacillus bulgaricus, a-Lactobacillus acidophilus, b-Bifidobacterium, and s-Streptococcus thermophilus are sufficient It was developed taking into account the physical needs and intestinal characteristics of the Chinese people and in accordance with the taste habits of the Chinese people.
Its advantage is that the Lactobacillus acidophilus and Bifidobacterium contained in it can colonize and survive in the human body, which is more beneficial to human health.
e+ bacteria: Contains four types of lactic acid bacteria: Lactobacillus bulgaricus, Streptococcus thermophilus, Lactobacillus acidophilus and Bifidobacterium. Each gram of active e+ bacteria yogurt contains 1 million active probiotics.
b-longum (Longgenb bacterium): ***Four labs are used: Lactobacillus acidophilus, Bifidobacterium longum (Longgenb bacterium), Lactobacillus bulgaricus and Streptococcus thermophilus Good bacteria. Weiquan yogurt not only has many strains of bacteria, but also has excellent varieties of strains. Among them, b-longum bacteria (longgen b bacteria) are precious lactic acid bacteria from the body of babies.
4 Who needs probiotic yogurt the most?
The main microorganisms in the human body are bacteria, with about 400 to 500 species. There are tens of trillions to hundreds of billions of them in the body, weighing 1.5 to 2 kilograms, and most of them are concentrated in the in the intestine. The microbial flora in the intestines can be roughly divided into beneficial bacteria, harmful bacteria and bacteria with both benefits and harms. The microorganisms in the intestines need to maintain a microecological balance. However, aging, disease, antibiotic treatment and many other factors can cause an imbalance in the microecology in the intestines. , thus causing human diseases.
Research has found that artificially supplementing active beneficial bacteria can not only regulate the imbalance of intestinal microecology, bring it into balance, and restore and maintain human health. It can also enhance human immunity; promote intestinal peristalsis and help digestion; inhibit the growth of putrefactive bacteria; reduce the risk of rectal and colon cancer; promote the absorption of minerals, especially calcium; and help people with lactose intolerance (drinking milk People who often feel bloated or have diarrhea afterwards) digest lactose; prevent diarrhea caused by viruses or salmonella; prevent allergies, etc.
1. People who use antibiotic drugs: When people use antibiotic drugs to treat diseases caused by inflammation, eating yogurt containing active lactic acid bacteria such as Bifidobacterium will help balance the imbalance of intestinal flora and supplement Nutrition and avoid side effects.
2. Regular smokers and drinkers: Yogurt contains a large amount of vitamins and some active substances, which can help reduce the burden on internal organs and reduce the poison of tobacco and alcohol on the human body.
3. People with habitual constipation: Middle-aged and elderly people often consume yogurt, which can stimulate gastrointestinal motility and improve constipation symptoms.
4. Patients with cardiovascular disease, liver disease, cancer chemotherapy and other diseases: Regular consumption of yogurt can help the recovery of patients with cardiovascular disease, liver disease, cancer chemotherapy and other diseases.
5. Office workers and computer workers: Regular consumption of yogurt will help the health of office workers and computer workers.
5 Drinking probiotic yogurt needs to be scientific
1. Identify the varieties: Currently on the market, there are many types made of milk (milk powder), sugar, lactic acid (citric acid), malic acid "Milk yogurt" is processed and formulated with , spices and preservatives. Since it does not have the health-care effects of yogurt, be sure to identify it carefully when purchasing.
2. Drink it about two hours after a meal: the ph value suitable for the growth of lactic acid bacteria is above 5.4, and the ph value of fasting gastric juice is below 2. If you drink yogurt at this time, the lactic acid bacteria are easily destroyed by the high gastric acid. Acidity kills and the health-care effect of active bacteria will be weakened. If the gastric juice is diluted after a meal, the pH value can rise to 3~5.
3. Rinse your mouth promptly after drinking: With the development of lactic acid bacteria series beverages, the dental caries rate in children is also increasing. This is the negative effect of certain strains of lactic acid bacteria.
4. Do not heat: If the active lactic acid bacteria in yogurt are heated or diluted with boiling water, they will die in large numbers. Not only will the unique taste disappear, but the health value of the active bacteria will also be lost.
5. Do not take it with certain drugs: antibiotics such as chloramphenicol and erythromycin, sulfa drugs and some drugs for treating diarrhea can kill or destroy the lactic acid bacteria in yogurt.
6. Do not feed the baby: Yogurt may affect the normal digestive function of the baby, especially for babies suffering from gastroenteritis and premature babies.
7. Yogurt needs to be stored at 2°C to 6°C. Under normal circumstances, active lactic acid bacteria are stored in an environment of 0°C to 4°C. At this time, the lactic acid bacteria are in the "dormant period" and the bacteria are active. , but the reproduction speed is slow; as the ambient temperature increases, lactic acid bacteria will multiply and die quickly, and their nutritional value will also be reduced.
Yogurt containing active lactic acid bacteria has a short shelf life, generally about two weeks, and must be stored at 2°C to 6°C, otherwise it will easily deteriorate. So when buying, be sure to choose yogurt sold in refrigerated cabinets.