Molecular Switch for Cheaper Biofuel

At the Vienna University of Technology, genetic engineers have found a trick, thanks to which fungi can be used for the production of biofuels far more cost effectively than before. Lignocellulosic waste such as sawdust or straw can be used to produce biofuel - but only if the long cellulose and xylan chains can be successfully broken down into smaller sugar molecules. To do this, fungi are used which, by means of a specific chemical signal, can be made to produce the necessary enzymes. Because this procedure is, however, very expensive, Vienna University of Technology has been investigating the molecular switch that regulates enzyme production in the fungus. As a result, it is now possible to manufacture genetically modified fungi that produce the necessary enzymes fully independently, thus making biofuel production significantly cheaper. Recycling Waste, not Wasting Food - Biofuel can be obtained quite easily from starchy plants - but this places fuel production in competition with food production. Manufacturing biofuel from lignocellulose is therefore a preferable option.