KH2PO4 .......................0.4 g
K2HPO4 .......................0.1 g
MgSO4 . 7H2O .................0.2 g
NaCl.........................0.1 g
CaCl2 ........................0.02 g
FeCl3 ........................0.01 g
Na2MoO4 . 2H2O................0.002 g
Sodium malate................5.0 g
Yeast extract................0.05 g
Distilled water..............1.0 L
Adjust pH to 7.2-7.4.