On 16/09/2010 6:19 AM, --riverman wrote:

There are various agar recipes? I thought agar was agar.

-riverman

Agar is the gelatinous base used as an ingredient for microbiological
media. It can be, and is, variously modified using a variety of
nutrients (some defined, some not) to suit the task the media are needed
for. The handbook of Microbiological Media by Atlas lists some 4000 recipes.

Tim Lysyk