[Preservation of microorganisms by the method of L-drying]

A procedure for L-drying of microorganisms or their drying under vacuum from liquid state is described in detail. The procedure is used in the Culture Collection of the All-Union Research Institute of Antibiotics. Preservation of Acremonium chrysogenum VNIIA 313A, the cephalosporin-producing culture, with the described procedure allowed one not only to maintain its viability for prolonged periods, but also to completely reproduce its initial antibiotic activity. L-Drying of some poorly kept cultures belonging to Acremonium was a success.