Science & Technology

Plant-based ingredients may promote bacterial production in biodegradable plastics

Rajibusaha.Credits: University of Nebraska, Lincoln

Given that synthetic plastics have a recycling rate of less than 10%, petroleum-derived non-biodegradable substances continue to accumulate throughout the globe, covering land and seabeds. Microplastics are found 29,000 feet above sea level at the summit of Mount Everest and 36,000 feet below the Mariana Trench.

Some bacteria produce biodegradable plastics when deprived of nutrients or under stress, positioning them as part of the solution to the crisis of plastic pollution. Unfortunately, the cost of nourishing and maintaining these microorganisms has hampered efforts to increase microbial production. Biodegradable plastic.. As a result, researchers have embarked on the design of microorganisms that produce bioplastics, especially poly-3-hydroxybutyrate (PHB), faster, more efficiently, from renewable raw materials.

Rajibusaha and colleagues in Nebraska have been studying the Rhodopseudomonas pulsetris species for tips on designing better bacteria. Their recent experiments have spawned a swarm of important discoveries. inside that? The components of degraded lignin, a polymer found in the cell walls of almost all land plants, can significantly increase the production of R. palustris, a PHB plastic.

To better understand the reason, the team Metabolic process You are responsible for converting raw materials into a variety of products, including bioplastics.Or model Helps uncover multiple strategies for optimizing PHB production, from avoiding biochemical reactions that normally act as bottlenecks to growing microorganisms on electron- and carbon-rich surfaces. I did.

As a starting point for these surfaces, researchers said that lignin could ultimately be the key to sustainable production of PHBs on a commercially viable and economically feasible scale. ..Strategies derived from the team’s hybrid approach Experimental observation Metabolism-focused modeling can also be directed at other similar bacteria and has the potential to transfer more candidates for green production of more environmentally friendly plastics.

How Bacteria Help Resolve the Crisis of Plastic Pollution

For more information:
Adil Alsiyabi et al, a synergistic experimental and computational approach, identifies new strategies for overproduction of polyhydroxybutyrate. Metabolic engineering (2021). DOI: 10.1016 / j.ymben.2021.08.008

Quote: Plant-based components are biodegradable plastics obtained from https: // on 20 December 2021. May 20, 2021) Promote Bacterial Production

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Plant-based ingredients may promote bacterial production in biodegradable plastics Plant-based ingredients may promote bacterial production in biodegradable plastics

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