Peptone 10 g Casein peptone, tryptic digest 10 g Tomato juice* 400 ml Agar 20 g Distilled water 600 ml Dissolve the solids in water by heating. Add tomato juice, mix, and sterilize at 121°C for 20 min. The final pH value of the medium should be 6.0 - 6.2. *Tomato juice: Tomatoes 250 g Distilled water 500 ml Cut up tomatoes and steam in water for an hour or until they are pulped. Clarify through gauze and filter through paper.