long-term mycobacteria storage
L.A.M.Buisman at cable.A2000.nl
Wed Oct 6 13:27:42 EST 1999
We make a thick suspension in a sterile solution of 1% peptone with 8%
Approx. 0.25 ml. in 1 ml. polyproylene tube with screwcap, at -70 or -80
No problems with reculturing, but of course, after thawing them it is
necessary to culture again and make a new suspension.
Good chance that commercial medium used for storage of other bacteria is
A. Seoane wrote:
> At our laboratory, long-term storage of mycobacterial
> strains (mainly M.tuberculosis) is acheived through
> refrigerating of freshly-grown L-J slants and periodic
> (6 month) re-culturing on fresh medium.
> As you can notice this is a time/money-costly scheme.
> We are now considering frozen storage of our strains.
> Does anybody know any good commercial freezing media?
> Has anybody got experience in mycobacteria freezing
> (media, temperature, viability of frozen strains...).
> Any information will be greatly apreciated.
> Please e-mail me at seoaneb at yahoo.com
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