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Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
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Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
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Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
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The scale-up of microbial fermentation processes is essential in industrial biotechnology, allowing the transition from laboratory-scale experiments to commercial-scale production while aiming to maintain product yield and quality. This process requires meticulous adjustment of equipment design, process parameters, and contamination control strategies to accommodate increasing culture volumes.At the laboratory scale, cultures are typically maintained in 1 to 10-liter glass or autoclavable...
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The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
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Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
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Design, construction, and characterization methodologies for synthetic microbial consortia.

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Engineered microbial consortia, combining metabolic engineering and synthetic biology, offer powerful tools for optimizing multiple tasks and understanding microbial ecology. These platforms are crucial for applications ranging from bioprocess engineering to chronic wound research.

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Area of Science:

  • Synthetic biology
  • Microbial ecology
  • Biotechnology

Background:

  • Engineered microbial consortia are gaining traction among bioprocess engineers, systems biologists, and microbiologists.
  • Their utility lies in optimizing multiple tasks, advancing systems science, and studying microbial ecology in environments such as chronic wounds.
  • Metabolic engineering, synthetic biology, and microbial ecology form the scientific foundation for these consortium-based platforms.

Purpose of the Study:

  • To outline strategies and protocols for designing, constructing, and analyzing engineered microbial consortia.
  • To provide methods for in silico network design, experimental strain construction, and consortia culturing.
  • To detail physiological characterization techniques for microbial consortia.

Main Methods:

  • In silico network design and analysis.
  • Experimental strain construction using metabolic engineering and synthetic biology tools.
  • Consortia culturing, including specialized biofilm growth methods.
  • Physiological characterization of engineered consortia.

Main Results:

  • The chapter provides a comprehensive guide to creating and studying engineered microbial consortia.
  • It details laboratory and computational methods applicable to various consortium designs.
  • These methods facilitate the synthesis and characterization of complex microbial communities.

Conclusions:

  • Engineered microbial consortia represent a versatile platform for diverse scientific and biotechnological applications.
  • The outlined strategies and protocols can be adapted for the development of novel microbial systems.
  • This work supports advancements in systems biology, microbial ecology, and bioprocess engineering.