Researchers Identify Enzyme That Helps Bacteria Break Down Biodegradable Plastics
Researchers have uncovered a naturally occurring enzyme that acts like a biological Pac-Man, allowing bacteria to devour certain types of biodegradable plastic. The study found that several types of biodegradable plastics completely broke down in soil conditions over roughly a year, while conventional plastic materials showed minimal degradation during the same period.
The discovery offers a potential pathway for addressing plastic pollution, as the enzyme facilitates microbial breakdown of specific plastic formulations designed to be compostable. This biological mechanism could complement existing waste management approaches for handling biodegradable materials, which currently lack efficient natural decomposition solutions.
Scientists note that while conventional plastics remain stubbornly resistant to microbial degradation, these specially designed biodegradable alternatives may provide a more sustainable end-of-life option when paired with the right environmental conditions and microbial communities.