| 乳酸菌在酸性环境中的生理变化及pHin的调控机制 |
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| 引用本文： | 畅天狮,刘俊果,张桂,边红杰,王兴梅.乳酸菌在酸性环境中的生理变化及pHin的调控机制[J].中国乳品工业,2002,30(2):7-10. |
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| 作者姓名： | 畅天狮 刘俊果 张桂 边红杰 王兴梅 |
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| 作者单位： | 1. 河北科技大学生物工程与食品科学学院,河北,石家庄,050018
2. 河北沧州职业技术学校,河北,沧州,061000 |
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| 摘 要： | 维持菌体细胞内PH值的稳定是乳酸菌的重要生理需要之一。确定了在菌种的生长繁殖与保存中，酸性环境会使菌体内不能维持近中性PH值，从而降低其存活的可能性，降低发酵的活力。总结了酸性环境对菌体细胞生理的特殊影响，阐述了菌体内PH值为多种新陈代谢活动的控制器，并且探讨了乳酸菌在低PH值环境中的自我保护措施。
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| 关 键 词： | 生理变化 调控机制 乳酸菌 酸性环境 |
| 文章编号： | 1001-2230(2002)02-0007-04 |
Physiological chanages of lactic acid bacteria in low pH environment and its means for defending against low intracellular pH |
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| CHANG Tian-shi,LIU Jun-guo,ZHANG Gui,BIAN Hong-jie,WANG Xing-mei.Physiological chanages of lactic acid bacteria in low pH environment and its means for defending against low intracellular pH[J].China Dairy Industry,2002,30(2):7-10. |
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| Authors: | CHANG Tian-shi LIU Jun-guo ZHANG Gui BIAN Hong-jie WANG Xing-mei |
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| Affiliation: | CHANG Tian-shi1,LIU Jun-guo1,ZHANG Gui1,BIAN Hong-jie1,WANG Xing-mei2 |
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| Abstract: | To lactic acid bacteria,to regulating their cytoplasmic pH is one of the most important physiological requirments.During growth or storage in acid environment,cells may lose viability resulting in the decrease of culture activity.This review describes the physiological changes of lactic acid bacteria in low pH environment and reports the latest progress of research work on the means by which lactic acid bacteria defend against low intracellular pH. |
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| Keywords: | lactic acid bacteria acid environment pH value |
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