Increased heat resistance of Geobacillus stearothermophilus spores heat-shocked during sporulation

Sang Wook Lee; Sang Jun Sim

Increased heat resistance of Geobacillus stearothermophilus spores heat-shocked during sporulation

Research output: Contribution to journal › Article › peer-review

Abstract

The purpose of this study was to measure the heat resistance and core mineral content of Geobacillus stearothermophilus ATCC 7953 spores when the sporulating cells were exposed to heat shock at different times during sporulation. Heat shock during sporulation was found to increase the heat resistance of the spores produced subsequently. The spores heat shocked 2 h after the end of the exponential phase showed the highest heat resistance and a 30-fold increase in the d₁₀ compared with the non-heat-shocked spores. The enhanced heat resistance was likely due to the increased mineral content observed in the spores heat shocked at t₇ or t₈.

Original language	English
Pages (from-to)	633-636
Number of pages	4
Journal	Journal of microbiology and biotechnology
Volume	16
Issue number	4
Publication status	Published - 2006 Apr
Externally published	Yes

Keywords

Geobacillus stearothermophilus
Heat resistance
Heat shock
Sporulation

ASJC Scopus subject areas

Biotechnology
Applied Microbiology and Biotechnology

Cite this

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title = "Increased heat resistance of Geobacillus stearothermophilus spores heat-shocked during sporulation",

abstract = "The purpose of this study was to measure the heat resistance and core mineral content of Geobacillus stearothermophilus ATCC 7953 spores when the sporulating cells were exposed to heat shock at different times during sporulation. Heat shock during sporulation was found to increase the heat resistance of the spores produced subsequently. The spores heat shocked 2 h after the end of the exponential phase showed the highest heat resistance and a 30-fold increase in the d10 compared with the non-heat-shocked spores. The enhanced heat resistance was likely due to the increased mineral content observed in the spores heat shocked at t7 or t8.",

keywords = "Geobacillus stearothermophilus, Heat resistance, Heat shock, Sporulation",

author = "Lee, {Sang Wook} and Sim, {Sang Jun}",

year = "2006",

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language = "English",

volume = "16",

pages = "633--636",

journal = "Journal of microbiology and biotechnology",

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AU - Lee, Sang Wook

AU - Sim, Sang Jun

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N2 - The purpose of this study was to measure the heat resistance and core mineral content of Geobacillus stearothermophilus ATCC 7953 spores when the sporulating cells were exposed to heat shock at different times during sporulation. Heat shock during sporulation was found to increase the heat resistance of the spores produced subsequently. The spores heat shocked 2 h after the end of the exponential phase showed the highest heat resistance and a 30-fold increase in the d10 compared with the non-heat-shocked spores. The enhanced heat resistance was likely due to the increased mineral content observed in the spores heat shocked at t7 or t8.

AB - The purpose of this study was to measure the heat resistance and core mineral content of Geobacillus stearothermophilus ATCC 7953 spores when the sporulating cells were exposed to heat shock at different times during sporulation. Heat shock during sporulation was found to increase the heat resistance of the spores produced subsequently. The spores heat shocked 2 h after the end of the exponential phase showed the highest heat resistance and a 30-fold increase in the d10 compared with the non-heat-shocked spores. The enhanced heat resistance was likely due to the increased mineral content observed in the spores heat shocked at t7 or t8.

KW - Geobacillus stearothermophilus

KW - Heat resistance

KW - Heat shock

KW - Sporulation

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SN - 1017-7825

VL - 16

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JO - Journal of microbiology and biotechnology

JF - Journal of microbiology and biotechnology

IS - 4

ER -

Increased heat resistance of Geobacillus stearothermophilus spores heat-shocked during sporulation

Abstract

Keywords

ASJC Scopus subject areas

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