Team:Aachen/Notebook/Protocols/Culture medium and conditions

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Culture Medium and Culture Conditions

Media

LB Medium

  1. weight components
    5 g/L NaCl
    10 g/L tryptone
    5 g/L yeast extract
    (15 g/L agar for plates)
  2. fill up to 1 L with deionized water
  3. mix well by shaking
  4. autoclave
    1. autoclaving tape, caps slightly unscrewed
    2. base of the pot has to be covered with deionized water
    3. close lid
    4. heat level 3 until the pressure valve opens
    5. reduce heat level to 1.5
    6. set timer to 20 minutes
    7. turn heater off
    8. wait until the pressure valve retracts (30-45 minutes)
    9. open, close caps & shake
  5. for plates, wait until you can touch the bottle (<60 °C, clean bench!)
  6. add antibiotics (1 µL/mL) and shake (gloves!)


TB Medium

  1. components 1:
    4 mL/L glycerol
    12 g/L tryptone
    24 g/L yeast extract
  2. fill up to 900 mL with deionized water
  3. mix well by shaking
  4. autoclave
  5. components 2:
    0.17 M KH2PO4
    0.72 M K2HPO4
  6. dissolve in 100 mL deionized water and sterilize it by passing it through a filter
  7. after autoclaving and cooling down, add sterile phosphate solutions


Hartmans Minimal Medium (HM)

M9 Minimal Medium (M9)

Components for 1 L Volume
bidest. water 778.667 mL
10x Salt solution 100 mL
Magnesiumsulfatehaptahydrate (10 mM) 100 mL
Glucose 20% (w/v) 20 mL
1000x Trace elements 1 mL
Thiamin (1 mM) 0.333 mL


10x Salt solution
Component' Final concentration Concentration in stock solution
BisTris 95 mM 200,000 mg/L
Ammmonium chloride 60 mM 32,100 mg/L
Sodium citrate 12.5 mM 27,000 mg/L
Monopotassium phosphate 3 mM 4,170 mg/L
Dipotassium phosphate 0.7 mM 1,590 mg/L
1000x Trace elements
ComponentFinal concentration Concentration in stock solution
Iron(III) chloride 50 mM 13,515 mg/L
Calcium chloride 20 mM 2,220 mg/L
Manganese(II) chloride 10 mM 1,258 mg/L
Zinc sulfate 10 mM 1,615 mg/L
Cobalt(II) chloride 2 mM 260 mg/L
Copper(II) chloride 2 mM 269 mg/L
Nickel(II) chloride 2 mM 259 mg/L
Sodium molybdate 2 mM 412 mg/L
Sodium selenite 2 mM 346 mg/L
Boric acid 2 mM 124 mg/L
Hydrochloric acid 1 mM 20 mL


SOC

  1. components
    0,5 % yeast extract
    2 % tryptone
    10 mM NaCl
    2.5 mM KCl
    20 mM MgSO4
  2. fill up with deionized water
  3. adjust to pH 7.5 with NaOH
  4. after autoclaving, add 20 mM sterile glucose solution (filter sterilization)