Castro, Helena P.Teixeira, PaulaKirby, Roy2011-05-182011-05-181996CASTRO, Helena P. ; TEIXEIRA, Paula M. ; Kirby, Roy - Changes in the ceIl membrane of Lactobacillus bulgaricus during storage following freeze-drying. Biotechnology Letters. ISSN 0141-5492.18:1 (1996) 99-104http://hdl.handle.net/10400.14/4313The mechanism of inactivation of freeze-dried Lactobacillus bulgaricus during storage in maltodextrin under controlled humidity was investigated. Evidence is presented supporting the hypothesis that membrane damage occurs during storage. A study on the lipid composition of the cells by gas chromatography showed a decrease in the unsaturated and saturated fatty acid content of the cell. Further evidence indicating membrane damage includes a decrease in membrane bound proton-translocating ATPase activity.engjournal article10.1007/BF00137819