
Cholera Double Sugar Iron Agar – 250g | Vibrio cholerae Biochemical Test Medium
Cholera Double Sugar Iron Agar is a differential medium designed for comprehensive biochemical testing of Vibrio cholerae, combining dual sugar fermentation and hydrogen sulfide production tests in a single tube.
Key Application:
✔️ Biochemical confirmation of V. cholerae
✔️ Simultaneous sugar fermentation testing
✔️ Hydrogen sulfide (H₂S) production detection
Test Principle:
– Evaluates glucose/lactose fermentation
– Detects H₂S production from sulfur reduction
– Color changes indicate metabolic activity
Protocol:
1️⃣ Prepare medium per instructions
2️⃣ Dispense into tubes
3️⃣ Autoclave and solidify as deep butt + slant
4️⃣ Stab inoculate butt and streak slant
5️⃣ Incubate 18-24 hours
Interpretation Guide:
– V. cholerae: Acid butt (yellow) / Alkaline slant (red) / No H₂S
– H₂S positive: Black precipitate
Features:
– Dual-test efficiency
– Ready-to-prepare powder
– Clear visual results
– 3-year stability