# 249: FAECALICATENA OROTICA MEDIUM ## Main sol. 249 5 g Tryptone (BD BACTO) 0.5 g Yeast extract 1.36 g KH2PO4 6.95 g K2HPO4 2.5 g Na-orotate 15 mg Riboflavin 1 mg Resazurin 0.5 g Na-thioglycolate 1000 ml Distilled water 1. Dissolve ingredients and adjust pH to 7.5. Sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic. Distribute medium under same gas atmosphere in anoxic Hungate-type tubes or serum vials and autoclave.