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用三电极,两室生物电化学系统在乳酸细菌中介导细胞外电子转移的特征

Robyn A C Alba¹, Siliang Li¹, Biki B Kundu²

¹Department of BioSciences, Rice University.

Journal of visualized experiments : JoVE

|September 9, 2024

概括

本研究介绍了一种使用生物电化学系统研究乳球植物菌植物中的细胞外电子转移 (EET) 的协议. 这种方法有助于了解微生物代谢的潜在应用在食品风味修饰和化学生产.

科学领域:

微生物学微生物学
电化学电化学电化学
生物技术是生物技术.

背景情况:

细胞外电子转移 (EET) 是一种关键的微生物过程.
中介EET涉及电子传输通过氧化还原活性分子到细胞外受体,如电极.
乳芽植物菌 (Lactiplantibacillus plantarum) 是一种益生菌,在食品工业中广泛使用.

研究的目的:

提出研究L. plantarum中介EET的详细方案.
证明使用生物电化学系统来表征ETE.
探索电发酵和生物电催化学的潜在应用.

主要方法:

一个三电极,两腔生物电化学系统的组装.
使用时波计和循环电压计对EET进行表征.
使用1,4-二基-2-酸 (DHNA) 作为一种可溶性介质.

主要成果:

展示了一种分析和解释L. plantarum中介EET数据的方法.
用DHNA介导的EET实验的代表性数据作为说明.
建立了进一步研究微生物电化学的基础.

结论:

描述的协议有助于研究L. plantarum中介EET的研究.
这种技术为电发酵和生物电催化提供了新的途径.
潜在的应用包括改变食品口味和生产有价值的化学物质.

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