The different systems (non lyophilized capsules, freeze-dried capsules
and freeze-dried free cells of L. reuteri CRL 1324) were dispensed
aseptically into screw-capped vials. The vials were placed in sealed plastic
containers (Parafilm® M, Wertheim, Germany) containing silica-gel
desiccants and stored at room temperature and at refrigeration temperature
(4 °C) under dark conditions for 150 days. Fig. 1 summarizes the
conditions of preparation and storage of the different systems assayed
to preserve the stability of L. reuteri CRL 1324