In a significant scientific step that could contribute to solving one of the world's biggest environmental crises, a team of researchers at King Abdullah University of Science and Technology (KAUST) has succeeded in discovering and developing new enzymes capable of breaking down plastics, through studying the unique ecosystems of mangrove forests on the Red Sea coast.
General context: The global plastic pollution crisis
Plastic pollution is a growing global challenge, with hundreds of millions of tons of plastic produced annually, much of which ends up in our oceans and ecosystems. Among the most common types of plastic, polyethylene terephthalate (PET), used in beverage containers and textiles, stands out as one of the most difficult materials to decompose. It can persist in the environment for hundreds of years, causing serious harm to wildlife, marine life, and human health. Global efforts have been underway for years to find effective and sustainable solutions to this problem, ranging from mechanical recycling to the development of innovative biological solutions.
KAUST's groundbreaking research: Mangrove forests are a biological treasure
The prestigious scientific journal Nature Communications published details of a study conducted by KAUST in collaboration with international research institutions. The research focused on mangrove forests, which are among the richest and most dynamic ecosystems. These forests are characterized by their ability to adapt to harsh conditions, such as fluctuations in salinity and temperature, making the microorganisms that live in their soil ideal candidates for harboring unique biological solutions.
The research team, led by Dr. Diego Javier Jiménez Ávila, relied on advanced techniques such as metagenomics, which allows for the direct study of genetic material from environmental samples, as well as employing artificial intelligence to analyze big data. These efforts resulted in the identification of a new and previously unknown class of enzymes that demonstrated an exceptional ability to break down polyethylene terephthalate (PET) compounds.
The importance and expected impact of the discovery
The great significance of this discovery lies in the fact that these enzymes function with high efficiency under conditions of extreme salinity, a problem that previously limited the effectiveness of enzymes discovered elsewhere. This means they could be used in large-scale industrial applications, and perhaps even in directly treating plastic pollution in marine and coastal environments.
- At the local level, this achievement aligns with the goals of Saudi Vision 2030 and the Saudi Green Initiative, which aim to protect the environment and achieve sustainability. It also reinforces the Kingdom's position as a leading center for innovation and scientific research in the region.
- At the regional and international levels, this research offers new hope in the global fight against plastic pollution. These enzymes could lead to the development of more sustainable and efficient “bio-recycling” processes, reducing reliance on fossil fuels to produce new plastics and contributing to a truly circular economy.
The researchers emphasized that these findings represent an important first step, and that work is ongoing to study these enzymes more deeply and improve their performance in preparation for their widespread application. This discovery opens the door to exploring other extreme ecosystems in the Kingdom and around the world as potential sources of innovative solutions to address the most pressing environmental challenges.
