Jensen's Media

Jensen's Media

  1. Mix these ingredients in 800mL of water, pH to 7.3; fill to 950mL and autoclave.

Chemical

Concentration (mM)

Concentration (g/L)

Chemical

Concentration (mM)

Concentration (g/L)

NaCl

85.6

5

K2HPO4

14.4

2.51

Glutamic acid

92

15.56

Valine

24

2.81

Phenylalanine

8

1.32

 

2. Prepare and sterilize these solutions separately (N.B. filter sterilizing seems to yield better growth)

Item

Chemical

Concentration (mM)

Concentration (g/L)

Instructions

Item

Chemical

Concentration (mM)

Concentration (g/L)

Instructions

1

Glucose

70

12.61

Dissolve 12.61 g in 50mL water

2

MgSO4 · 7H2O

1.33

0.33

Dissolve 33g in 100mL water

3

CaCl2 · 2H2O

0.14

0.021

Dissolve 2.1g in 100mL water

4

FeSO4 · 7H2O

0.0039

0.0011

Dissolve 0.11g in 100mL water

5

ZnSO4 · 7H2O

0.0085

0.0024

Dissolve 0.24g in 100mL water

 

3. Add 50 mL glucose and 1 mL each of items 2-5 to the solution prepared in step 1 while stirring.