Wax extracted from wheat straw. Researcher Fabien Deswarte from the University of York, UK, holds a sample of industrially valuable wax extracted from waste wheat straw. The wax was extracted using a process known as supercritical extraction. This technique enables chemical compounds to be extracted from plant matter without the use of environmentally harmful solvents. The wax by- product is used in cosmetics and other wax-based products. Deswarte is a member of the Green Chemistry Group at York University. This group researches industrial processes that use renewable resources and processes that involve less environmental waste or damage. Photographed in 2006.
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