Study on the sterilizing effects of fast neutron radiation on <italic style="font-style: italic">Bacillus subtilis</italic>

CHEN Xiaoming; TAN Bisheng; ZHANG Jianguo; ZHENG Chun; LUO Juan; SUN Ying; CHU Shijin; REN Zhenglong

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Study on the sterilizing effects of fast neutron radiation on Bacillus subtilis

更新时间：2023-03-30

- Study on the sterilizing effects of fast neutron radiation on Bacillus subtilis
- Journal of Radiation Research and Radiation Processing Vol. 25, Issue 3, Pages: 166-170(2007)
- 作者机构：
  
  1.四川农业大学　雅安　625000
  2.西南科技大学　绵阳　621010
  3.中国工程物理研究院核物理与化学研究所　绵阳　621900
  4.中国工程物理研究院　绵阳　621900
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CHEN Xiaoming, TAN Bisheng, ZHANG Jianguo, et al. Study on the sterilizing effects of fast neutron radiation on Bacillus subtilis. [J]. Journal of Radiation Research and Radiation Processing 25(3):166-170(2007)
DOI：

CHEN Xiaoming, TAN Bisheng, ZHANG Jianguo, et al. Study on the sterilizing effects of fast neutron radiation on Bacillus subtilis. [J]. Journal of Radiation Research and Radiation Processing 25(3):166-170(2007) DOI：

摘要

利用快中子脉冲堆（Chinese Fast Burst Reactor II，CFBR-Ⅱ）产生的快中子，采用枯草芽孢杆菌黑色变种为材料，考查了中子辐射灭菌效果及剂量、剂量率、辐照温度、照射状态等辐射灭菌影响因素。结果表明，在剂量率为7.4Gy/min时的,D,10,值为384.6Gy，中子剂量与存活芽孢对数满足,y,=-0.0026,x,+10.462的函数关系；在剂量为800Gy时，剂量率与存活芽孢对数满足,y,=7.7414,X,-0.0834,的函数关系；升高温度有利于中子辐射灭菌；中子辐照不同状态芽孢，其存活率为：菌片,>,粉末,>,液体。

Abstract

In order to investigate the neutron radiation sterilizing effect and influence factors including dose, dose rate, temperature and spore state, the ,Bacillus subtilis, var,. niger., spore were irradiated by the fast neutron radiation produced from Chinese Fast Burst Reactor II. The plate-count results indicate that the ,D,10, value is 384.6Gy with the neutron radiation dose rate of 7.4Gy/min and the correlation between the dose and logarithm of survivors meets the function ,y,=-0.0026,x,+10.462. When neutron dose kept 800Gy, the correlation between the dose rate and logarithm of survivors meets the function ,y,=7.7414,x,-0.0834,; spore livability declines under a high radiation temperature. The spore livability order is spore strip ,>, spore powder ,>, spore solution at the same neutron radiation. The conclusion can be made that neutron radiation has a higher sterilization effect than gamma ray and electron beam.

关键词

枯草芽孢杆菌黑色变种中子辐照辐射灭菌剂量率辐照温度

Keywords

Bacillus subtilis var. nigerNeutron radiationRadiation sterilizingDose rateRadiation temperature

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Study on the sterilizing effects of fast neutron radiation on Bacillus subtilis

DOI：

摘要

Abstract

关键词

Keywords

references