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UNT researchers discover potential new paths for plant-based bioproducts

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DENTON (UNT), Texas – Plant science researchers at the University of North Texas have found potential new pathways for the creation of plant-based bioproducts. The research is outlined in a new article in the journal Nature Plants.

The UNT research team was working as part of the US Department of Energy's BioEnergy Science Center coordinated by the Oak Ridge National Laboratory.

The team looked into the roles of enzymes that convert amino acids into lignin in Brachypodium, a fast-growing model grass with a sequenced genome. Lignin is a substance that makes plants woody and firm, and, although it is an impediment to the processing of feedstocks for biofuels, it can be used to create a variety of bioproducts, including materials such as carbon fiber.

"As we studied the way different amino acids are converted to lignin, we found that there may be a new and unrecognized pathway for making lignin in grasses," said UNT Distinguished Research Professor Richard Dixon. "A new pathway means potential for engineering more lignin in plants that don't possess that pathway, as well as an additional way of modifying lignin in grasses. This provides new opportunities for the synthesis of high value, high volume bioproducts that could significantly improve the economics of the bioenergy industry."

Dixon is the director of UNT's BioDiscovery Institute, one of UNT's Institutes of Research Excellence.

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The research was supported by a Barrie Foundation Fellowship, the University of North Texas, and the BioEnergy Science Center which is a U.S. Department of Energy Bioenergy Research Center supported by the Office of Biological and Environmental Research in the Department of Energy's Office of Science.

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Established in 1890, UNT is one of the nation's largest public research universities with 37,000 students. For 125 years, UNT has fulfilled its mission to lead the way in educating young men and women and creating leaders with great vision. Ranked a Tier One research university by the Carnegie Classification, UNT is a catalyst for creativity fueling progress, innovation and entrepreneurship for the North Texas region and the state. As the university has grown, so has its reach and impact. UNT graduated 8,200 students last year from its 12 colleges and schools and offers 100 bachelor's, 83 master's and 37 doctoral degree programs, many nationally and internationally recognized. UNT's world-class faculty are making breakthroughs every day and its students and alumni are changing the world around them.

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