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| 超高压处理对微生物生理特性的影响 | |
| 引用本文： | 李宗军 徐建兴. 超高压处理对微生物生理特性的影响[J]. 微生物学报, 2005, 45(4): 521-525 |
| 作者姓名： | 李宗军 徐建兴 |
| 作者单位： | 1. 湖南农业大学食品科技学院,长沙,410128 2. 中国科学院生物物理研究所,北京,100101 |
| 基金项目： | 湖南省农业生物技术重大专项研究(2004NK1003)~~ |
| 摘 要： | 单核增生李斯特菌(Listeriamonocytogenes)NCTC11994和大肠杆菌(Escherichiacoli)ATCC80739经高压处理,其生理特性发生了深刻的变化,主要表现是400MPa以上的压力处理10min,微生物数量下降7个对数单位,压力处理还会导致细胞内pH值的变化,使膜电位下降,细胞内钾流失,ATP浓度降低。 |
| 关 键 词： | 超高压 微生物 生理特性 |
| 文章编号： | 0001-6209(2005)04-0521-05 |
| 修稿时间： | 2004-12-02 |
Effect of high hydrostatic pressure on microbial physiological characteristics |
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| LI Zong-jun,XU Jian-Xing. Effect of high hydrostatic pressure on microbial physiological characteristics[J]. Acta microbiologica Sinica, 2005, 45(4): 521-525 | |
| Authors: | LI Zong-jun XU Jian-Xing |
| Affiliation: | The College of Food Science and Technology, Hunan Agriculture University, Changsha 410128, China. lizongjun@yahoo.com.cn |
| Abstract: | Physiological characterizations of Listeria monocytogenes NCTC 11994 and Escherichia coli ATCC 80739 have deeply changed by high hydrostatic pressure. The results showed that counts of both microbial strains decreased 7 log cfu at 400MPa,10min. Pressure treatments also resulted in change of Intracellular pH value, lowed membrane potential, have internal potassium filtered out, and decreased ATP concentration. |
| Keywords: | High Hydrostatic Pressure Microorganism Physiological Characterization |
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