agarless Nutrient media

Nicholas Landau nlandau at eden.rutgers.edu
Tue Mar 30 15:14:39 EST 1999

ashwin_k18 at my-dejanews.com writes:

> is it possible to prepare Nutrient media with inorganic gelling agents and if
>so please give me some examples. Agar is very expensive and not all labs
>can afford large quantities of it. Also agar is likely to influence growth of
>some microorganisms.

The good news is that other gelling agents are available.  The bad news
is that agar is about the cheapest one.  In addition, organisms exist
which can degrade all gelling buffers (although no one organisms of
which I am aware can degrade them all).  Starch, gellatin and "gel-rite"
can be used to make media.  If you can't afford agar, then it is time
to start filling out those grant applications!

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