# 470: PSEUDOMONAS HALOPHILA MEDIUM ## Main sol. 470 900 ml **Solution A** 100 ml **Solution B** 1. Vitamin solution is filter-sterilized and added after autoclaving. Solution A and B are autoclaved separately and combined after cooling. 2. Adjust pH to 7.0 with 6 M NaOH or HCl. ## Solution A 46.8 g NaCl 39.4 g MgSO4 x 7 H2O 1 g NH4Cl 5 g Glycerol 1 ml **Trace element solution SL-10** 10 ml **Vitamin solution** 890 ml Distilled water ## Solution B 1 g KH2PO4 100 ml Distilled water ## Trace element solution SL-10 10 ml HCl (25%) 1.5 g FeCl2 x 4 H2O 70 mg ZnCl2 100 mg MnCl2 x 4 H2O 6 mg H3BO3 190 mg CoCl2 x 6 H2O 2 mg CuCl2 x 2 H2O 24 mg NiCl2 x 6 H2O 36 mg Na2MoO4 x 2 H2O 990 ml Distilled water 1. First dissolve FeCl2 in the HCl, then dilute in water, add and dissolve the other salts. Finally make up to 1000.00 ml. ## Vitamin solution 2 mg Biotin 2 mg Folic acid 10 mg Pyridoxine hydrochloride 5 mg Thiamine-HCl x 2 H2O 5 mg Riboflavin 5 mg Nicotinic acid 5 mg Calcium pantothenate 1 mg p-Aminobenzoic acid 0.01 mg Vitamin B12 1000 ml Distilled water