C:N ratios

Mark fuller at envirogen.com
Tue May 5 14:40:12 EST 1998


I'm trying to check my media formulations so that I have excess of
everything, and carbon is the limiting element

I know a good C:N for bacteria is supposed to be 10:1 (based on E.
coli), but is that a molar or a mass ratio?  Also, this ratio should be
read as "Bacteria need 1 unit of nitrogen for every 10 units of carbon
for balanced growth", right?

Any input would be much appreciated.

Thanks in advance,

Mark Fuller
fuller at envirogen.com


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