Notes 10/8

Notes from Lab today

IF your E. Coli grew on the EMB agar then it is a better chance it is E. Coli - it is gram (-)

E. Coli cannot use Citrate as sole energy source

Kliger Iron Agar
- initially red
- it turns yellow @ low pH
- result of sugar fermentation
- if bacteria produce sulfur - agar will turn black
- sulfur + iron = sulfide

Simmon's Citrate Agar
- Initially green
- turns blue if bacter can use citrate as sole energy source (salmonella)

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