微生物生长的实时监测方法使用简单的基于压力的呼吸检测系统来监测微生物生长
Nara Shin1, Jinok Oh1, Yebin Han1
1Advanced Materials Program, Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, Republic of Korea.
Analytical biochemistry
|April 24, 2025
概括
这项研究引入了一种新的,节省劳动力的方法,用于使用连续二氧化碳测量监测微生物生长. 基于压力的呼吸检测系统提供实时数据和高精度,与干细胞重量有很强的相关性.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 分析化学 分析化学
背景情况:
- 传统的微生物生长评估方法,如干细胞重量 (DCW) 和光密度 (OD),是劳动密集和耗时的.
- 需要有效的实时方法来监测微生物生长动态.
研究的目的:
- 评估基于压力的呼吸检测系统,以在有氧条件下持续监测微生物生长.
- 为了比较这个系统与传统的DCW和OD测量的有效性.
主要方法:
- 利用以压力为基础的呼吸检测系统,通过用KOH捕获二氧化碳来测量二氧化碳的产生,从而诱导压力降低.
- 在Ralstonia H16繁殖过程中与DCW和OD测量相关的压力降低率.
- 应用该系统来评估各种细菌菌株 (大肠杆菌,伪氏菌,Burkholderia,Bacillus) 的碳源利用率和生长.
主要成果:
- 在压力降低和DCW之间显示出强烈的相关性 (R2 = 0.99),用于Ralstonia eutropha H16.
- 已建立的理论检测 (14.67 mbar / 0.0428 g/L DCW) 和量化 (48.9 mbar) 的极限.
- 当应用于各种细菌菌株时,与DCW显示出高相关性,证实了该方法的多功能性.
结论:
- 基于压力的呼吸检测系统是实时监测微生物生长的可靠和高效工具.
- 与传统技术相比,这种方法显著减少了劳动力和时间.
- 在各种研究和工业应用中为微生物分析提供了一个有希望的替代方案.
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