03 Jun 2013:
Genetic Study Reveals Cheaper
Process to Convert Sawdust to Biofuel
A team of genetic engineers reports it has developed an inexpensive process that uses fungus to convert raw materials such as straw and sawdust into a productive biofuel
. While it was previously known that the Trichoderma
fungus produces the enzymes needed to break down such lignocellulosic wastes into a form of biofuel, the process was prohibitively expensive since the molecular switch required stimulation from a pure substance known as disaccharide sophorose, which is worth 60 times more than gold. Through genetic analysis, scientists from the Vienna University of Technology identified the specific gene that triggers the process — as well as the protein that the gene mutation affects — enabling them to mimic the same mutation in other strains of fungus. “We have understood the mechanism of this molecular switch and, consequently, many wonderful possibilities are opening up for us,” said Astrid Mach-Aigner, project group leader of the study
published in the journal Biotechnology for Biofuels
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
A look at how acidifying oceans could threaten the Dungeness crab, one of the most valuable fisheries on the U.S. West Coast. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
An indigenous tribe’s deadly fight to save its ancestral land in the Amazon rainforest from logging. Learn more.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
Residents of the Chocó Rainforest in Ecuador are choosing to plant cacao over logging in an effort to slow deforestation.
Watch the video.
Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.