Updated Protocol for the Assembly and Use of the Minibioreactor Array (MBRA)

Area of Science:

• Microbiology
• Systems Biology
• Biotechnology

Background:

• The human microbiome is crucial for host health, but studying it requires advanced models.
• Traditional in vitro microbiota cultivation methods are often limited in scalability and accessibility.
• Developing high-throughput, user-friendly systems is essential for advancing microbiome research and therapeutics.

Purpose of the Study:

• To introduce the Minibioreactor Array (MBRA) system, a novel platform for high-throughput microbial community cultivation.
• To provide a detailed protocol for MBRA fabrication, assembly, sterilization, and operation.
• To demonstrate the MBRA system's utility in studying microbial responses to various environmental factors.

Main Methods:

• Development of a modular, single-stage, continuous-flow Minibioreactor Array (MBRA) system.
• Parallel cultivation of up to 48 distinct microbial communities.
• Detailed guidance on system fabrication, assembly, sterilization, and operation within anaerobic chambers.

Main Results:

• The MBRA system enables scalable and reproducible high-throughput cultivation of complex microbial ecosystems.
• The modular design allows for experimental flexibility and customization for diverse applications.
• The system has been successfully applied to study microbial responses to antibiotics, dietary compounds, and pathogen invasion.

Conclusions:

• The MBRA system offers an accessible, scalable, and reproducible model for investigating microbial interactions.
• This platform significantly advances the study of the human microbiome and facilitates the development of microbiome-based therapeutics.
• The MBRA system empowers researchers to explore microbial communities and screen for specific traits efficiently.