Survival of Escherichia coli during drying and storage in the presence of compatible solutes
作者： P. Louis , H. G. Tr�per , E. A. Galinski
DOI: 10.1007/BF00167285
关键词:
摘要: Five different compatible solutes, sucrose, trehalose, hydroxyectoine, ectoine, and glycine betaine, were investigated for their protective effect on Escherichia coli K12 E. NISSLE 1917 during drying subsequent storage. Two techniques, freeze-drying air-drying, compared. The highest survival rate was observed when the non-reducing disaccharides sucrose (for K12) trehalose 1917) added. two tetrahydropyrimidines, hydroxyectoine gave protection to freeze-dried whereas protected only by hydroxyectoine. Glycine betaine seemed be harmful both strains of with techniques. Air0drying much better rates than freeze-drying. differed in ability take up solutes.
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