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Long-term preservation of streptococci.
Article in English | IMSEAR | ID: sea-16225
ABSTRACT
Strains of 12 T types of group A streptococci preserved by sand desiccation and stored at 4 degrees to 10 degrees C were regularly sub-cultured to check their viability. For this, streptococci coated onto sand particles mixed with sterile sheep blood were inoculated into Todd-Hewitt broth with added blood and incubated for 24 to 48 h. Checking for viability every six months showed that group A streptococci could be preserved by this method for 21 yr. Our study shows that sand desiccation is a convenient and cheap method for the long-term preservation of streptococci in laboratories where other methods of preservation are not feasible on a regular basis.
Subject(s)
Full text: Available Index: IMSEAR (South-East Asia) Main subject: Preservation, Biological / Streptococcus pyogenes / Cryopreservation / Cell Survival / Bacteriological Techniques / Silicon Dioxide / Desiccation Language: English Year: 1995 Type: Article

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Full text: Available Index: IMSEAR (South-East Asia) Main subject: Preservation, Biological / Streptococcus pyogenes / Cryopreservation / Cell Survival / Bacteriological Techniques / Silicon Dioxide / Desiccation Language: English Year: 1995 Type: Article