Scientists at Imperial College London report that they have invented a polymer, made from non-food sources, that could be used in packaging and then tossed into compost piles or landfills, where it degrades upon contact with water.
The scientists said they worked three and a half years on a biodegradable polymer that is made from sugars known as lignocellulosic biomass, derived from fast-growing trees, grasses, and agricultural and food wastes.
Lead researcher Charlotte Williams said the team accomplished its goal of producing the polymer from non-food sources and using small amounts of water in the process — an advantage over another biorenewable plastic, polylactide, whose manufacture requires large amounts of water and energy.