title: In situ determination of Clostridium endospore membrane fluidity during pressure-assisted thermal processing in combination with nisin or reutericyclin.
abstract: This study determined the membrane fluidity of clostridial endospores during treatment with heat and pressure with nisin or reutericyclin. Heating (90°C) reduced laurdan (6-dodecanoyl-2-dimethylaminonaphthalene) general polarization, corresponding to membrane fluidization. Pressure (200 MPa) stabilized membrane order. Reutericyclin and nisin exhibit divergent effects on heat- and pressure-induced spore inactivation and membrane fluidity.
authors: Department of Agricultural, Food and Nutritional Science, Edmonton, University of Alberta, Edmonton, Alberta, Canada.
authors: S
authors: S
authors: Hofstetter
authors: R
authors: R
authors: Winter
authors: L M
authors: LM
authors: McMullen
authors: M G
authors: MG
authors: Gänzle
mesh_terms: D015081:2-Naphthylamine / Q000031:analogs & derivatives / Q000378:metabolism; D003013:Clostridium / Q000187:drug effects / Q000502:physiology* / Q000528:radiation effects; D006358:Hot Temperature; D006874:Hydrostatic Pressure; D007848:Laurates / Q000378:metabolism; D008560:Membrane Fluidity / Q000187:drug effects* / Q000528:radiation effects*; D050296:Microbial Viability / Q000187:drug effects / Q000528:radiation effects; D009561:Nisin / Q000378:metabolism; D013171:Spores, Bacterial / Q000187:drug effects / Q000502:physiology* / Q000528:radiation effects; D013720:Tenuazonic Acid / Q000031:analogs & derivatives / Q000378:metabolism
chemical_list: D007848:Laurates; C416127:reutericyclin; D009561:Nisin; D013720:Tenuazonic Acid; D015081:2-Naphthylamine; C065580:laurdan