Nature Study Shows How Enzymes Might Solve Fast Fashion Waste

The research, authored by an international team of chemists and bioprocess engineers, explores how specially engineered enzymes can selectively break down the most challenging blends of cotton and polyester, making true fiber-to-fiber textile recycling far more practical and scalable.

The Challenge: Blended Fabrics and Fashion’s Waste Problem The world faces a tidal wave of textile waste, with only about 1% of post-consumer clothing currently recycled back into new garments.

Mixed-fiber blends, such as the common cotton-polyester combinations in t-shirts and activewear, are especially problematic—traditional methods can’t easily separate and regenerate these fibers. Most recycling today is downcycling, turning old clothes into insulation or rags, not new clothes.

The new Nature study highlights: Current mechanical, chemical, thermochemical, and enzymatic strategies suffer from several limitations, such as high energy costs, extensive pre-treatment requirements, and enzyme instability. This leaves most blended garment waste destined for landfill or incineration…