MIL Medium (Motility Indole Lysine Medium) Difco 218041, 500g. Differentiating Enterobacteriaceae based on motility, lysine decarboxylation, lysine deamination and indole production. MIL Medium (Motility Indole Lysine Medium) Difco 218041 - buy online through Voigt Global Distribution, your dealer distributor for all BBL DIFCO BD Microbiology products.