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Main sol. 487

Internal Solution-ID: S994

Equipment needed: Hungate tubes Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
Betaine x H2O 6.00 g 5.982 51.065
L-Alanine 2.20 g 2.193 24.62
NaCl 10.00 g 9.97 170.604
MgSO4 x 7 H2O 0.50 g 0.499 2.023
NH4Cl 1.00 g 0.997 18.639
CaCl2 x 2 H2O 0.03 g 0.03 0.203
Trace element solution SL-10 1.00 ml - -
Selenite-tungstate solution 1.00 ml - -
Yeast extract 1.00 g 0.997 -
Sodium resazurin
(0.1% w/v)
0.50 ml 5.0e-4 0.002
NaHCO3 5.00 g 4.985 59.341
K2HPO4 0.36 g 0.359 2.061
KH2PO4 0.23 g 0.229 1.685
Wolin's vitamin solution (10x) 1.00 ml - -
Na2S x 9 H2O 0.30 g 0.299 1.245
Distilled water 1000.00 ml - -
1 Dissolve ingredients (except bicarbonate, phosphates, vitamins and sulfide), bring medium to the boil, then cool to room temperature under 100% N2 gas atmosphere. Add and dissolve bicarbonate, adjust pH to 7.5, dispense under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. After sterilization add phosphates, vitamins and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas. Vitamins should be sterilized by filtration. Adjust pH of complete medium to 7.3 - 7.5, if necessary.
487 PEPTOCLOSTRIDIUM MEDIUM (BETAINE)