Probiotics, lactic acid bacteria, Lactobacillus bulgaricus, Streptococcus thermophilus, Lactobacillus acidophilus, Bifidobacterium lactis ... You go to buy yogurt, and the "this bacteria" and "that bacteria" in the mouth of salesmen are often confusing and countless. Are "this bacterium" and "that bacterium" really that magical? Is there really such a big gap between adding and not adding?
There are many kinds of charming eyes.
The reporter found in some big supermarkets in Jinan that many yoghurts are marked with various "bacteria" and even promoted as a gimmick, but the ingredients of these yoghurts are no different from ordinary yoghurts.
Take the original yogurt, e+ probiotic yogurt and Changyou B+ Changtong yogurt of a well-known dairy brand as examples. Although the names are completely different, the ingredients of the three yoghurts are exactly the same. The strains contained are Lactobacillus bulgaricus and Streptococcus thermophilus, and the contents of various nutrients in the nutrient composition table are almost the same.
However, it is also a tour of B+ Tong Tong yogurt, but there are many Lactobacillus acidophilus and Bifidobacterium lactis in the ingredient list of 580g bottles. A bottle of four plants, the price is nearly 1.5 times that of the bag. In this regard, supermarket sales staff do not understand the difference.
In addition, during the investigation, the reporter also found a yogurt with the health food logo printed on the national food brand. Four cups (each cup 100g) cost 10 yuan, which is the only yogurt with health food logo on the market.
Compared with ordinary yogurt, this kind of health yogurt contains Lactobacillus acidophilus and Bifidobacterium lactis BB- 12 except Lactobacillus bulgaricus and Streptococcus thermophilus, and there is basically no difference. However, it is the same kind of health yogurt, and there is no national food hygiene label in the bottle. At the same time, the "double function" of regulating intestinal flora and enhancing immunity on the outer packaging has also been replaced by the "double protection" of being relaxed, pleasant, healthy and beautiful.
During the interview, many consumers who came to buy yogurt said that "this fungus" and "that fungus" didn't understand at all, and most of them chose according to the brand and price.
This kind of yogurt is very common.
In view of the concept and topic of strains in yogurt market, the reporter interviewed Liu Xinli, Ph.D. and associate professor of microbiology in Shandong Institute of Light Industry, who has been engaged in the research of microbial active metabolites for many years.
According to Liu Xinli, probiotics are living microorganisms that are beneficial to the body. They have certain nutritional value and help to improve the balance of beneficial bacteria in the intestine. Probiotics in yogurt generally include Lactobacillus bulgaricus, Lactobacillus acidophilus, Bifidobacterium lactis and Streptococcus thermophilus. These bacteria are usually named according to their cell morphology (Bacillus or coccus) and growth characteristics (acidophilic or thermophilic).
Regarding all kinds of strains in the yogurt market, he said that these are all commonly contained in yogurt, but not the more strains contained in a yogurt, the better. "The quality of yogurt depends on the kind and nature of the bacteria. At present, internationally recognized lactic acid bacteria are considered as the safest strains and the most representative intestinal probiotics. The more probiotics represented by lactic acid bacteria in yogurt, the better. "
In the investigation, the reporter found that many products specifically indicate the number of flora, such as "every 1 kg contains10 billion Bifidobacterium lactis BB- 12." In this regard, Liu Xinli explained that the number of live bacteria in yogurt is its main indicator, and the larger these values, the better.
"Because if the bacteria content in production is low, or if the bacteria die in the process of product storage, that is, the value of live bacteria is low, it will not have the expected beneficial effect on the body. Drink 100g yogurt every day, and the content of probiotics in each gram of yogurt is higher than the seventh power of10, so that yogurt can improve and help health. In addition, it is also incorrect to say that yogurt is made of inferior or deteriorated milk. "