Genencor enzyme reduces dosing 3-fold

By Luke Geiver | February 09, 2010
Posted Feb. 16, 2010

Genencor, a Danisco division, introduced its latest generation of cellulosic enzymes,Accellerase Duet, at the 15th Annual National Ethanol Conference in Orlando, Fla., Feb 15. The new enzyme builds on the advances in beta-glycosidase and cellulose activity previously created by the Accellerase 1500 model.

"Genencor has a long tradition of commitment to addressing the need for alternative, renewable fuels to help combat climate change," said Philippe Lavielle, executive vice president of business development for Genencor. "The renewed commitment earlier this month by the Obama Administration to support the rapid development of renewable fuels is encouraging and exciting. With more than 10 years of scientific investment in this area and a world class, global manufacturing infrastructure, Genencor is now ready to support the fast deployment of cellulosic biofuels."

The upgrades in the Accellerase line of enzymes will allow higher sugar and biofuel yields at three-fold lower dosing according to Genencor. The enzyme uses a whole broth formulation, which provides nutrients for fermentative organisms, lowering the chemical load introduced into the fermentation process. The enzyme works well on all feedstock and pretreatment combinations according to the company, with greater improvements from substrates with more hemicellulose content after pretreatment.

With the new goals for cellulosic ethanol outlined in the final renewable fuel standard (RFS2), Genencor hopes to continue the move toward commercial scale production. "RFS2 is a positive development for cellulosic ethanol," said Francis Stalder, global media specialist at Danisco, "As an industry we feel optimistic we can work with U.S. legislators and policymakers to put in place the incentives necessary to ensure the cellulosic industry will meet the long-term mandates and the nation's goals for energy independence."