A recent study revealed that the Moringa oleifera plant, an ancient herbaceous plant known as the "tree of life," can remove microplastic particles from water.
Researchers at the Institute of Science and Technology at Sao Paulo State University have found that moringa seeds, native to India and other tropical regions, can detoxify water, working with an efficiency equivalent to traditional chemical treatments.
Gabrielle Batista, the study's author, said: "The salt extract from the seeds performs a similar function to aluminum sulfate, the substance used in treatment plants to coagulate water containing microplastics. In more alkaline waters, it performed better than the chemical product."
In tests, the extract achieved a removal efficiency exceeding 98%, a rate comparable to widely used chemical treatments.
Moringa is a plant long praised for its numerous medicinal benefits. Research suggests it has been used to treat wounds, reduce inflammation, and address liver and heart conditions, as well as cancer. Its high mineral content also makes it a sought-after ingredient in skincare and moisturizers.
As awareness of the dangers of chemical toxins in the environment grows, cultural trends are shifting toward a less chemical-dependent lifestyle. Data indicates that more people prefer organic products to synthetic ones, and this trend is becoming even more pronounced when it comes to drinking water.
Adriano Gonçalves dos Reis, the lead researcher on the study, explained: "There is increasing regulatory scrutiny and health concerns about the use of aluminum and iron-based coagulants, because they are not biodegradable, leave residual toxicity, and pose a risk of disease. For this reason, the search for sustainable alternatives has increased."
Plastic pollution is now a globally recognized and serious threat to both the environment and human health.
According to 2026 data from the Ocean Blue Project, between 8 and 11 million tons of plastic enter the ocean annually. As a result, microplastics have become ubiquitous and permeate everyday life, routinely found in water, food, and everyday products, and appearing in 90% of seabirds and in human blood and lungs.
It is estimated that a person may ingest tens of thousands of these particles annually.
Researchers have raised questions about the effects of humans ingesting microplastics, as studies have linked their toxins to digestive problems and reduced fertility.
As of April 2026, the U.S. Environmental Protection Agency (EPA) classified microplastics as a "priority group of pollutants" in its draft sixth list of candidate pollutants, along with other major pollutants such as pharmaceuticals that may be present in our water.
Recent developments have highlighted natural plant-derived coagulants, such as those extracted from moringa, as promising and environmentally friendly alternatives to synthetic treatments. Among these, moringa has been the subject of extensive research, and recent data shows that its microplastic removal rate exceeds 90% under suitable conditions.
The study's findings also suggest that using moringa for organic filtration could lead to cost and energy savings, reducing the need for chemical and infrastructure expenditures. However, the researchers caution that gaps remain, particularly regarding scaling up the application. While the results are promising, large-scale trials are needed to determine whether moringa-based filtration can be effective in real-world scenarios and complex municipal water systems.
