Whether you are a dad or a milk powder practitioner, have you ever been confused by the color of milk powder? There are differences between different brands, and there are also differences between different segments and batches of the same brand. Many people ask me that the color of milk powder is milky yellow and milky white. Is there a difference in nutrition? Is yellow good or white good? In fact, the color of infant formula is generally uniform milky yellow, and there is almost no really pure white formula. The color difference of different milk powders determines our visual experience. The closer it is to light yellow, the easier it is to judge it as white. When you check the color of milk powder, you can see that milk is yellow, light yellow and even white. As long as the powder has luster, uniform color and no peculiar smell, it is a normal person.

Why is the normal color of formula milk powder even milky yellow? In addition to white or colorless crystals, most of the nutrients in milk powder can be yellow or orange. For example, yellow β -carotene has strong coloring ability and is one of the main components of milk powder. In addition, there are yellow lutein and vitamin B 1, yellow-green vitamin E, yellow vitamin K 1 and K2. In addition to lutein, these are essential nutrients in formula milk powder, and other colors of nutrients are also integrated into milk yellow. So it is not difficult to understand that the main color of formula milk powder is milk yellow.

1. The composition of fresh milk affects the color of milk powder. The nutrients we just mentioned affect the color of milk powder, which is also found in fresh milk. The type and structure of these nutrients will affect the color of milk powder. For example, β -carotene has positive and negative isomers, and their colors are different. In nature, it is mainly the trans isomer of beta-carotene. If the feed fed to cattle is rich in beta-carotene, there will be more beta-carotene in milk and the color of milk powder will be darker. In spring and summer, if cows can eat more high-fat feed, or if there are more high-quality feed in the milk source, the content of β -carotene will increase. In addition, dairy cows consume more lutein, vitamin B and other nutrients mentioned above, which will deepen the color of milk powder.

2。 The ingredients in milk powder affect the color of milk powder. First of all, the amount of yellow nutrients added and whether it will affect the color of milk powder is a common reason. Secondly, different brands of formula milk powder will choose nutrients from different raw material suppliers, such as β-carotene, vitamin B, minerals that need to be strengthened and so on. The final color of formula milk powder will be affected by the difference of production technology and physical state of nutrients. Take β -carotene as an example. If β -carotene with large powder particles is added, the color will be lighter at a certain concentration; The better the dispersion of β -carotene is, the higher its color intensity is.