AFAIK and as far, as I have experienced: The cfu/OD-ratio depends on the
stage of growth of your culture. If you plate from a log-phase culture,
there will be more cfu's than from a stationary-phase culture.
There have been observations that suggest a high ratio of OD/Total cell
count to viable count. I don't know the source yet, but if you are
interested in, I will have a look.
Regards
TG
Franco Pagotto schrieb:
>> Hi all,
>> Is anyone aware of an equation which takes into account an OD reading
> and gives or estimates the CFU's/ml of a bacterial growth?
>> Tx.
> F.