Biotechnology Letters, Vol.26, No.20, 1593-1594, 2004
Improved long-term cryostorage of Escherichia coli competent cells using trehalose
Trehalose added to storage buffers for chemical-induced transformations at 200 mm increased the survival of Escherichia coli competent cells 1.3similar to4.8-fold over 180 d cryostorage compared with dimethyl sulfoxide or glycerol.