Growing Long-chain Polymers in vitro Using Engineered Bacteria in Synthetic Biology and Precision Fermentation Space

The synthesis of long-chain polymers has a conventional method of utilizing energy-intensive chemical procedures, which are normally not eco-friendly. Though synthesizing polymers using synthetic biology and precision fermentation is not possible in vitro, both methods, when integrated, provide a biological solution to synthesize polymers in vitro. In light of this, this article examines the means of engineering bacteria, including Escherichia coli and Pseudomonas, that are used to produce controlled synthesis of high-value polymers like PHAs and PLA. New technologies and methodologies of synthetic biology, including the CRISPR-Cas9 system, have brought bacterial metabolic engineering to new levels, requiring higher polymer yield, longer chains, and improved functionality. Supporting these advancements, the precision fermentation method creates a controlled production environment for polymer growth and enhances the reproducible scalability of a complex industrial process. Nonetheless, certain critical tasks still exist to ensure that the metabolic load on the engineered bacteria is optimized and that the polymers are not degraded during the manufacturing process. This is apparent given the fact that the use of these biologically derived polymers in areas like bioplastics, medicine, textiles, and many other economies shows the capability to substitute for a petrochemical-based economy, hence enhancing sustainability. This review provides the current introductory state, where the prospects and difficulties detected about sustainable long-polymer synthesis using synthetic biology and precision fermentation are discussed.