Description General description Antifoam A is a silicone-based product used to prevent or minimize foaming in both microbial fermentation systems and mammalian suspension cultures. Control of foaming minimizes damage to the cells, resulting in increased protein/antibody production. Application Antifoam A concentrate has been used in bioreactor culture for Staphylococcal enterotoxin C (SEC) production. Packaging 100 g in glass bottle Components Antifoam A is a 100% active silicon polymer containing no non-ionic emulsifiers . Preparation Note Antifoam A can be pre-diluted with 3-10 parts of aqueous propylene glycol or non-aqueous vegetable oil with slow mixing.