Kimchi Bacteria Bound Nanoplastics in Recent Study
Researchers found that a specific bacterium from kimchi helps capture and remove nanoplastics in laboratory settings.
Updated on Sept. 18, 2026 in Life Sciences
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A study published in Bioresource Technology demonstrates that the bacterium Leuconostoc mesenteroides CBA3656 binds to nanoplastics. Laboratory and mouse trials indicate the bacteria significantly aid in the excretion of these particles from the digestive system.
Why it matters
Nanoplastics are ubiquitous environmental contaminants, and finding a natural method to facilitate their removal could mitigate the health risks associated with plastic accumulation in the body.
In controlled studies, Leuconostoc mesenteroides CBA3656 bound 87% of nanoplastics in laboratory settings and 57% in simulated gut conditions, compared to just 3% for a different bacterial strain. Mice treated with the bacteria expelled over double the nanoplastics.
The players
Leuconostoc mesenteroides CBA3656
This is a specific strain of bacteria found in the traditional fermented food kimchi that shows potential for binding to plastic particles.
Bioresource Technology
This is a peer-reviewed scientific journal that publishes research on biomass, biological waste treatment, and environmental biotechnology.
The details
The bacterium functions by attaching to nanoplastic particles on its cell surface, effectively holding them together to allow for passage through the digestive tract. This mechanism allows the particles to be passed in feces rather than remaining absorbed in the system.
Timeline
September 18, 2026: The study was published in the journal Bioresource Technology.
The Big Picture
This discovery marks a shift toward utilizing natural microbial tools to address the pervasive issue of nanoplastic pollution. It challenges the reliance on chemical filtration by demonstrating how specific bacterial strains can be harnessed to facilitate particle removal from biological systems.
If validated by future human trials, this bacterium could eventually lead to the development of probiotic supplements or dietary additives designed to reduce the body's internal plastic burden. Such advancements would provide a simple, food-based intervention to help counteract the health impacts of daily plastic exposure.
The takeaway
This study highlights the potential of common fermented foods as sources for environmental and medical innovation. Further research will be essential to determine if these bacterial properties translate into tangible health advantages for human consumers.
Further reading
For more on emerging biological solutions, visit the Life Sciences section.
Source note: This article includes information reported by Economic Times.
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