Hydroxybenzoic acids: Microbial metabolism, pathway engineering and products

Area of Science:

• Biotechnology and metabolic engineering
• Sustainable chemistry and bioeconomy
• Microbial biosynthesis of plant secondary metabolites

Background:

• Hydroxybenzoic acids (HBAs) are plant metabolites with significant antioxidant, antiviral, anticancer, and antibacterial properties.
• Current production methods like plant extraction and chemical synthesis are inefficient and environmentally detrimental.
• There is a growing demand for sustainable and eco-efficient production of HBAs.

Purpose of the Study:

• To systematically review microbial metabolism and biosynthesis of HBAs.
• To identify challenges and propose strategies for improving microbial HBA production.
• To explore the potential of engineered microbial cell factories for enhanced HBA synthesis.

Main Methods:

• Systematic literature review of microbial HBAs metabolism and biosynthesis.
• Analysis of factors influencing bacterial strain selection, titer, and bioprocess strategies.
• Discussion of metabolic engineering approaches for HBA overproduction.

Main Results:

• Microbial fermentation presents a viable, sustainable alternative to traditional HBA production methods.
• Engineered microbial cell factories show significant promise for efficient HBA biosynthesis.
• Key metabolic pathways and regulatory mechanisms for HBA production in microbes are elucidated.

Conclusions:

• Optimizing microbial strains and bioprocesses is crucial for efficient HBA production.
• Metabolic engineering offers powerful tools to enhance HBA yields and titers.
• Advancements in microbial bioproduction contribute to a sustainable bioeconomy.