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Medium Detail Information

Medium No.
KTM medium
 Bacto Yeast Extract (Difco)5g
 Vitamin solution*10ml
 Trace element solution**10ml
 Distilled water1L
  Mix ingredients except for maltose, vitamin solution and cysteine-HCl, adjust pH to 6.8 with NaOH and autoclave under a N2 atmosphere. Concentrated cysteine-HCl solution is sterilized separately under a N2 atmosphere. Prior to inoculation, add the filter-sterile maltose and vitamin solutions and cysteine-HCl. Final pH of the medium is 6.5-6.8.
  *Vitamin solution
   Folic acid2mg
   Nicotinic acid5mg
   p-Aminobenzoic acid1mg
   Vitamin B120.01mg
   Distilled water1L
  **Trace elements solution
   Nitrilotriacetic acid (NTA)12.8g
   Distilled water1L
  First dissolve nitrilotriacetic acid and adjust pH to 6.5 with NaOH, and then add minerals. Final pH 7.0.