BBC: Highly focused microwaves can be used to extract useful chemical compounds from waste food products, and that processing could take place in homes as well as on an industrial scale. The new technology activates cellulose to release chemicals, can process anything with cellulose in it, and is especially effective with paper and cardboard items. The complexities of global food supply produce a great deal of waste throughout the supply chain; harnessing this material on behalf of the materials and biofuels industries would address the growing problem of waste disposal and provide a renewable source of carbon. A demonstration facility is planned for York, UK, later in 2011.