CM221-T12
$260.53
Product #: CM221-T12
Description: 12ml in 16x125mm Tube, Case of 100
Use: SIM Medium is a semisolid medium used for the determination of indole formation, sulfide production, and motility of the Enterobacteriaceae, especially Salmonella and Shigella.
Description: The SIM Medium is formulated to detect sulfide production, indole formation, and motility. Ferrous ammonium citrate and sodium thiosulfate are used to detect hydrogen sulfide production. H2S gas reacts with ferrous ammonium citrate to product ferrous sulfide, a black precipitate. Casein peptone contains tryptophan, which is converted to indole. Indole is detected after incubation by the addition of Kovac’s reagent, which reacts with indole to produce red color. The medium is semi-solid due to a low concentration of agar, and, motility is easily seen by growth radiating from original stab.
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