Spore heat resistance and specific mineralization.

摘要: Spores of Bacillus megaterium ATCC 19213, subtilis niger and stearothermophilus 7953 were converted to fully demineralized, but viable, H forms by controlled acid titration. more heat sensitive than native forms, z values greater for killing spores those spores. Therefore, the differences in sensitivity between decreased with increasing temperature. The increase associated demineralization did not appear be due damage cortex lytic enzymes germination system because it could moderated decoating heated plating them on medium added lysozyme. remineralized means back titration appropriate base solutions. spores, except Na form, then resistant Ca Mn effective restoring resistance Mg K. Generally, (except form) had still less forms. At lower temperatures, reinstatement related extent remineralization. However, at higher only a fraction mineral was resistance, levels remineralization result resistance. Mineralization is clearly an important factor spore relationship mineralization complex dependent