Kimchi Bacteria Bound Nanoplastics in Recent Study
A strain of Leuconostoc mesenteroides captured plastic particles in lab tests, pointing to a potential new gut-clearing tool.
Updated on Sept. 18, 2026 in Life Sciences
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Researchers have discovered that a bacterium found in kimchi, Leuconostoc mesenteroides CBA3656, can bind to nanoplastics in laboratory and mouse models. The findings, published in the journal Bioresource Technology, highlight a potential mechanism for using microbes to help the body process plastic particles.
Why it matters
Nanoplastic accumulation in the human body remains a significant health concern, and this research suggests a potential microbial method for accelerating the removal of these contaminants through the digestive system.
The study demonstrated an 87% nanoplastic binding efficiency in laboratory tests and a 57% efficiency in simulated gut conditions, compared to 3% for a control strain. These results confirm the bacteria can sequester plastic particles smaller than one micrometre.
The players
Leuconostoc mesenteroides CBA3656
A specific bacterial strain found in kimchi that research identifies as having the capability to bind to nanoplastics.
Bioresource Technology
A peer-reviewed scientific journal that published the findings regarding the interaction between the bacteria and nanoplastics.
The details
Leuconostoc mesenteroides binds to nanoplastics directly on the surface of the bacterial cell. This physical attachment allows the bacteria to hold onto the plastic particles throughout the digestive process, facilitating their excretion. In mouse studies, subjects administered the bacteria passed more than twice the amount of nanoplastic in their feces compared to the control group.
Timeline
September 18, 2026: The research findings were published in the journal Bioresource Technology.
The Tech Race
This study extends microbial detoxification research programs by identifying a food-derived candidate for synthetic plastic removal. It marks a departure from traditional environmental filtration efforts by investigating the use of endogenous gut flora to actively clear ingested nanoplastics.
The technology is currently in the research phase and is not available as a commercial probiotic or medical treatment. Further testing is required to confirm whether the results observed in mice translate to humans or if these specific bacteria can safely be utilized as a digestive aid.
The takeaway
This discovery offers a new approach to managing the presence of ingested nanoplastics, which are defined in the study as particles up to one micrometre in size. Readers should watch for future clinical trial results, which will determine if this laboratory-stage mechanism can function in human subjects.
What happens next
Scientists plan to initiate human trials to determine if the bacterial strain provides actual health benefits or effective plastic reduction in the human digestive system.
Further reading
For more updates on how gut microbiome research is evolving, visit Life Sciences.
Source note: This article includes information reported by Economic Times.
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