1, what is bovine colostrum?
Bovine colostrum refers to the milk squeezed by cows within 72 hours after delivery. Compared with ordinary milk, bovine colostrum has special chemical composition. Bovine colostrum is not only rich in milk nutrition, but also contains many immune factors, such as active immunoglobulin, lactoferrin, lactoperoxidase, lysozyme and so on. It has a series of physiological activities, such as immunomodulation, improving gastrointestinal function, promoting growth and development, inhibiting a variety of pathogenic microorganisms, etc., and is known as "healthy food of 2 1 century".
Bovine colostrum products on the market are functional dairy products made from bovine colostrum by special technology. Its main physiological functions are: directly resisting intestinal pathogenic bacteria and improving gastrointestinal function; Enhance the body's systemic immunity; Adjust the balance of physical state and accelerate the process of health recovery.
2, the standard of bovine colostrum
The Ministry of Health said in its reply that colostrum is the milk of healthy cows within seven days after calving. The production of dairy products with bovine colostrum as raw material shall strictly abide by relevant laws and regulations, and the products shall conform to the corresponding national standards, industry standards, local standards and enterprise standards. The inspection of bovine colostrum powder can refer to the physical, chemical and hygienic indexes in the current specification of bovine colostrum powder (RHB602-2005).
However, according to the physical, chemical and hygienic indexes in the current specification of bovine colostrum powder (RHB602-2005), bovine colostrum refers to the milk squeezed by healthy cows that are normally raised and have no infectious diseases and mastitis within 72 hours after delivery.
After the news came out, many mothers felt very entangled. Is it seven days or three days? What standard is used?
There is no uniform standard in China on how to define bovine colostrum accurately. The reliable news is that the health department is beginning to define the concept of colostrum, formulate national standards, and explain the applicable population and safety. I believe that colostrum standards will be unified soon.
3. Is bovine colostrum useful?
Experts, scholars and businessmen have different opinions about the function of bovine colostrum. But what is certain is that in order to make a profit, the role of bovine colostrum products in the market is infinitely magnified by merchants. Among many infant milk powders, adding bovine colostrum is the main selling point of expensive milk powder, with the highest profit rate.
Experts believe that the current domestic bovine colostrum market is not standardized, and the research on bovine colostrum is not enough. Many problems have not been fully understood, especially the lack of authoritative and reliable scientific experiments. In this case, the main consumers of bovine colostrum should be adults and the elderly. And not suitable for babies. Moreover, colostrum should not be used as a raw material for processing infant formula milk powder, because it is not clear which ingredients are beneficial or harmful to infants. The baby's body is very fragile, so we must be very careful what we give the baby to eat.
Wang Dingmian, a senior expert in domestic dairy industry, also said, "The addition of bovine colostrum to baby food has always been controversial, mainly because its ingredients may have a greater negative impact on babies." Bovine colostrum is added to baby food to increase immune function, but many hormones in bovine colostrum may be unfavorable to baby growth. "According to the new provisions of the National Food Safety Law, additives in baby food can only be added when necessary. For the sake of prudence, it is not appropriate to add bovine colostrum, an unnecessary ingredient. "
According to nutritionist Fan Zhihong, in the previous dairy industry, bovine colostrum was thrown away because it could not be made into normal milk powder, and its value was very low. Now, it shows that the power of advertising is too strong. Bovine colostrum has a little antibacterial effect before it is absorbed by the stomach, but it cannot be directly absorbed by the human body, otherwise it will be allergic immediately. Bovine colostrum has no effect on the baby's general immunity.
The high hormone content in bovine colostrum is considered to be the main reason for its insecurity. According to the data of official website, Ministry of Health, generally speaking, the level of estrogen in bovine colostrum is high. The estrogen content of bovine colostrum for 0-2 days is more than 10 times that of general milk powder; On the 7th day, the estrogen content of bovine colostrum is about 5 times that of milk powder.
There is no uniform definition and standard for colostrum. For the safety of the baby, mothers should be cautious. In fact, breast milk is the best food for babies. Breast milk contains some immune antibodies, which can prevent some diseases caused by children's maladjustment from intrauterine development to extrauterine development. When the baby enters the "milk changing period" after drinking breast milk, it should be fed with high-quality infant formula.