Eosine/methylene blue agar: origin of metalic colour?

Horst Ibelgaufts Ibelgaufts at vms.biochem.mpg.de
Mon Jun 27 05:29:32 EST 1994


Sugar-fermenting E coli show a metalic deep purple colour on eosin
methylene b lue agar. Does anyone know where this colour comes from?
thanks
Horst



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