Modular engineering for microbial production of carotenoids

Area of Science:

• Biotechnology
• Metabolic Engineering
• Synthetic Biology

Background:

• Carotenoids are in high demand across food, pharmaceutical, and feed industries.
• Extraction and chemical synthesis of carotenoids face cost and environmental challenges.
• Microbial production presents a sustainable and cost-effective alternative.

Purpose of the Study:

• To review advances in microbial engineering for carotenoid production.
• To outline key metabolic modules involved in carotenoid biosynthesis.
• To discuss future perspectives for optimizing microbial carotenoid synthesis.

Main Methods:

• Review of metabolic engineering and synthetic biology strategies.
• Analysis of four distinct metabolic modules: central carbon metabolism, cofactor metabolism, isoprene supplement metabolism, and carotenoid biosynthesis.
• Focus on redirecting carbon flux and optimizing cofactor supply for carotenoid precursors.

Main Results:

• Identification of four critical metabolic modules for engineering carotenoid overproduction.
• Strategies for optimizing precursor supply through metabolic pathway reconstruction.
• Demonstration of microbial systems as viable platforms for carotenoid synthesis.

Conclusions:

• Metabolic engineering and synthetic biology are powerful tools for microbial carotenoid production.
• Understanding and manipulating metabolic modules is key to enhancing carotenoid yields.
• Future research should focus on further optimizing these modules for industrial-scale production.