Stability of Staphylococcus aureus Phage ISP after Freeze-Drying (Lyophilization)

>Staphylococcus aureus phage ISP was lyophilized, using an Amsco-Finn Aqua GT4 freeze dryer, in the presence of six different stabilizers at different concentrations. Stability of the lyophilized phage at 4°C was monitored up to 37 months and compared to stability in Luria Bertani broth and physiological saline at 4°C. Sucrose and trehalose were shown to be the best stabilizing additives, causing a decrease of only 1 log immediately after the lyophilization procedure and showing high stability during a 27 month storage period.

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Source URL:http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0068797