在不同温度下形成芽孢的枯草芽孢杆菌天然和脱矿质芽孢的耐热性。
Heat resistance of native and demineralized spores of Bacillus subtilis sporulated at different temperatures.
作者信息
Palop A, Sala F J, Condón S
机构信息
Tecnología de los Alimentos, Universidad de Zaragoza, Zaragoza, Spain.
出版信息
Appl Environ Microbiol. 1999 Mar;65(3):1316-9. doi: 10.1128/AEM.65.3.1316-1319.1999.
Abstract
Demineralization reduced heat resistance of B. subtilis spores, but the pattern and magnitude of the reduction depended on sporulation temperature and on heating menstruum pH. The differences in heat resistance of native spores caused by sporulation temperature almost disappeared after demineralization. Demineralized spores were still susceptible to the heat-sensitizing effect of acidic pH.
摘要
脱矿作用降低了枯草芽孢杆菌孢子的耐热性，但降低的模式和程度取决于芽孢形成温度和加热介质的pH值。脱矿作用后，由芽孢形成温度引起的天然孢子耐热性差异几乎消失。脱矿后的孢子对酸性pH的热敏化作用仍敏感。
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