# J21: LACTOBACILLUS MEDIUM III ## Main sol. J21 10 g Casein peptone, tryptic digest 5 g Yeast extract (BD-Difco) 2 g Beef extract (BD-Difco) 20 g Glucose 0.5 g KH2PO4 0.5 g K2HPO4 10 mg FeSO4 x 7 H2O 0.2 g MgSO4 x 7 H2O 7.5 mg MnSO4 x n H2O 1 ml Tween 80 40 ml Ethanol 20 g Sodium acetate 30 mg DL-mevalonic acid 15 g Agar 1000 ml Distilled water 1. Adjust pH to 5.2.