Medium refers to a nutritional matrix prepared from a combination of different nutrients for the growth and reproduction of microorganisms, plants or animals (or tissues). Generally contain several major categories of substances such as carbohydrates, nitrogen-containing substances, inorganic salts (including trace elements), vitamins and water. In this culture process, you need to use 0.22um filter membrane.
Medium is not only the basic material that provides cell nutrition and promotes cell proliferation, but also the living environment for cell growth and reproduction. There are many types of culture media, which can be divided into natural culture media, synthetic culture media, and semi-synthetic culture media according to the source of raw materials.
After the medium is prepared, the pH generally needs to be tested and adjusted, and sterilization is also required, usually with high temperature sterilization and filter sterilization. Compared with filtration, high-temperature sterilization has less work intensity and lower cost, but it is easy to cause the loss of nutrients, and it is easy to add samples (sterile glutamine solution, sterile sodium bicarbonate solution, etc.) during multiple additions. Cause secondary pollution.
However, most culture media use 0.1~0.22um filter membrane for filtration sterilization, and have become media sterilization development direction, which can minimize the nutrient loss of the culture medium.
The currently independently developed PTFE bubble point filter material 0.22um filter membrane is the core material for culture medium filtration, with high retention rate, With the characteristics of high flow rate, low pressure difference and wide chemical compatibility, it is widely used in pharmaceutical, food, beverage, beer, chemical and other industries, and we can provide two different categories of hydrophobic and hydrophilic at the same time. Interested parties are welcome to enter the store for consultation.
</p
