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Medium Detail Information

Medium No.	305
Medium
Composition
Sulfur (powder)* 0.5 g   (NH4)2SO4 1.3 g   KH2PO4 0.28 g   MgSO4·7H2O 0.25 g   CaCl2·2H2O 0.07 g   FeCl3·6H2O 0.02 g   MnCl2·4H2O 0.018 g   Na2B4O7 4.5 mg   ZnSO4·7H2O 0.22 mg   Na2MoO3·2H2O 0.05 mg   Distilled water 1 L   Adjust pH to 3.0 with 10 N H2SO4                     *Sulfur is sterilized separately by autoclaving for 60 min at 105℃ on each of 3 successive days and added after inoculation.     For solid medium, equal volumes of separately autoclaved double-strength liquid medium (pH 2.0) and 1.6% Gelrite (Kelco, Division of Merck & Co, Inc.) are mixed, after cooling to 45℃.
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