autoclaving and PEG

Patricia Foster pfoster at
Wed Feb 23 11:40:40 EST 1994

: We once had fungal growth in conc KOH that could be transferred from bottle
: to bottle and appeared to grow.

: I think also that some Staphylococcus (certainly some spores of bugs) can
: survive autoclaving.

   Staphylococcus do not make spores, and I am quite sure they do not 
survive autoclaving.  Some of the most thermotolerant spores around,
Bacillus thermo-something-or-another, are used to test your
autoclave -- if they don't germinate, your autocalve is working!

Patricia L. Foster
Boston University School of Medicine
Boston, MA USA
pfoster at

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