With more and more kinds of "yogurt" in the market, all kinds of "yogurt" are also classified for specific people. "Yogurt" emerges in an endless stream, dazzling. The concepts of yogurt fermented milk in the United States and Britain are different, and the classification of yogurt in China draws lessons from some American concepts. In the national standards issued by People's Republic of China (PRC) and the Ministry of Health, the concepts of yogurt, flavored yogurt and fermented milk are clearly expounded.
Flavor fermented milk: raw cow (sheep) milk or more than 80% milk powder is used as raw material, and other raw materials are added. After sterilization and fermentation, the pH value is lowered, with or without food additives, nutritional fortifiers, fruits and vegetables, grains, etc. Before or after fermentation. For example, Mengniu Guan Yi milk belongs to the concept of flavor fermented milk, and its fermentation strains are not strictly restricted by Lactobacillus bulgaricus and Streptococcus thermophilus. On this basis, Lactococcus lactis subspecies, Lactococcus lactis subspecies and lactobacillus acidophilus were added. These strains can not only ferment milk, but also increase the unique flavor of products. Yellow peach sauce was also added to improve the taste of the product.
Even if there are products on the market that completely conform to the concepts of yogurt and fermented milk, their sales volume is estimated to be very low. Yogurt is fermented without sugar, only inoculated with Streptococcus thermophilus and Lactobacillus bulgaricus (Lactobacillus delbrueckii subsp. Bulgaria). It feels more sour than vinegar. If it is not a special hobby, it is generally difficult for consumers to accept it. Fermented milk is fermented by safe strains other than Streptococcus thermophilus and Lactobacillus bulgaricus. Generally, when developing the strain, we take it as a single research object in the laboratory to study its acid production and aroma production. Of course, in the voice of adding 0, yogurt in absolute sense has appeared in the European market.