Soyabean Casein Digest Agar Plate w/ Lecithin and Tween 80, w/ β-Lactamase (Tryptone Soya Agar Plate w/ Lecithin and Tween 80 w/ β-Lactamase)

This medium is recommended for determining efficiency of containers, equipment surfaces, water miscible cosmetics and inactivation of β lactam antibiotics. Lecithin and polysorbate 80 neutralizes quaternary ammonium compounds and parahydroxy benzoates. β lactamase enzyme breaks the β-lactam ring of antibiotic, deactivating the molecule's antibacterial properties thus enabling recovery of organisms from the environment of cleanrooms where production of antibiotics is carried out.