# 1417: MMB MEDIUM ## Main sol. 1417 0.15 g Peptone 0.15 g Yeast extract 0.25 g Ammonium Sulfate 1 g Glucose 20 ml **Modified Hutner`s Basal Salts Solution** 1000 ml Distilled water 15 g Agar, for solid medium 1. Autoclave at 121 °C for 15 min. 10 ml **Vitamine Solution** ## Vitamine Solution 2 mg Biotin 2 mg Folic acid 5 mg Thiamine HCl 5 mg D-Calcium pantothenate 0.1 mg Vitamin B12 5 mg Riboflavin 1000 ml Distilled water ## Modified Hutner`s Basal Salts Solution 10 g Nitrilotriacetic acid 29.7 g MgSO4 x 7 H2O 3.34 g CaCl2 x 2 H2O 9.25 mg Ammonium Molybdate 99 mg FeSO4 x 7 H2O 50 ml **Metals "44"** 950 ml Distilled water 1. Note: Dissolve and neutralize the nitrilotriacetic acid with KOH (7.3 g); add the other ingredients and adjust the pH to 6.6 - 6.8 before bringing the volume to 1.0 L with distilled water. ## Metals "44" 0.25 g EDTA 1.1 g ZnSO4 x 7 H2O 0.5 g FeSO4 x 7 H2O 0.154 g MnSO4 x 7 H2O 0.04 g CuSO4 x 5 H2O 0.025 g Co(NO3)2 x 6 H2O 0.018 g Na2B4O7 x 10 H2O 1000 ml Distilled water 1. Note: Initially add a few drops of H2SO4 to the distilled water to retard precipitation.