TAT Broth culture media product blog Tags: Culture Media; TAT Broth; TAT Broth culture media; Posted by mybiosource_staff on . The TAT Broth n/a (Catalog #MBS652875) is a Culture Media and is intended for research purposes only. The product is available for immediate purchase.To buy or view more detailed product information and pricing, please click on the technical datasheet page below:TAT Broth (Trypticase Azolectin Tween) (Powder)Sterility testing medium to detect gram negative organisms from cosmetics, salves and ointments.