• Feeding Media 2x103A

Feeding Media 2x103A

Product Description

2×103A is a high-efficiency feeding medium that is animal-derived-component-free (ADCF) and protein-free, which is suitable for fed-batch culture in the process of developing and producing therapeutic protein products using Chinese hamster ovary (CHO) cells. This product does not contain hypoxanthine, thymine and L-glutamine, which has been widely used in the culture of CHO-K1, CHO-S, DG44, CHOZN and other cell lines using GS and dhfr screening systems.


User Manual

2×103A is a high-efficiency feeding formula designed to improve the growth and production performance of CHO cells, which is rich in nutrients such as amino acids and vitamins, and can meet the nutritional needs of cell culture in high density and high expression of products. Combining with characteristics of cell lines, reasonable feeding strategy can significantly improve cell growth and antibody expression performance.

Recommended Feeding Strategy:


2.96g/L high-efficiency feeding medium B is required to be added in the preparation process

It is recommended to carry out the first feeding at the middle and late phases of cell exponential growth, which usually starts at a cell density of more than 2.0×106 cells/mL. The recommended feeding proposal is described below and the optimized ratio can be customized according to the cell line used:

2×103A feed can be used in combination with BR8 to further improve the culture efficiency, and the concentration of BR8 is recommended at 0.5% per addition.

Feeding Time2 x 103A2 x 103A+BR8
Day 35%5%+0.5%
Day 55%5%+0.5%
Day 77.5%7.5%+0.5%
Day 97.5%7.5%+0.5%
Day 115%5%+0.5%
Day 135%5%+0.5%


Product Catalogue


NameArticle No.PackageSpecification
2×103 CHO High-efficiency Feed AF103-201.ALiquid1L
2×103A High-efficiency Feeding Medium AFP103A-001Powder100g
FP103A-010Powder1kg
FP103A-050Powder5kg
FP103A-100Powder10kg
High-efficiency Feeding Medium BBP100-001Powder10g
BP100-005Powder50g
BP100-015Powder150g
BP100-030Powder300g


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