Low-fat fetal bovine serum removes endogenous lipids, triglycerides and cholesterol by solid matrix degreasing, and its content is only 1/3 of that of standard fetal bovine serum.
Fat-free fetal bovine serum is a natural medium which is widely used in cell culture. It contains rich nutrients necessary for cell growth, and is often used for in vitro culture of animal cells, which has extremely important functions.
1. Provide hormones for maintaining the exponential growth of cells, nutrients with little or no amount in the basic medium and main low-molecular-weight nutrients.
2. Provide binding proteins that can recognize vitamins, lipids, metals and other hormones, and can bind or modulate the activity of the substances they bind.
3. In some cases, protein can combine with toxic metals and pyrogens to detoxify.
4. It is the source of factors needed for cells to adhere to the wall and spread on plastic culture medium.
5. It acts as a pH buffer.
6. Protease inhibitors are provided to inactivate the remaining trypsin during cell passage and protect cells from damage.