Three Wisconsin biofuel companies have been awarded a  total of $4.8 million in federal research dollars, or more than 27% of the total  awards nationwide. The money has come from the Department of Energy and  Department of Agriculture. Clean Tech Partners, of Madison, received $1.5  million to develop methods for stabilizing biomass materials. Lucigen Corp., of  Middleton, received $1.3 million to develop enzyme products for converting  soybean meal to ethanol. Virent Energy, of Madison, received $2 million for  research into biodiesel-fuel production. The total award to Wisconsin,  $4,780,800, was more than 27% of nearly $17.5 million in biofuel research grants  awarded nationwide this fall. By rbarrett  journalsentinel.com