A Sweeter Way to Make Green Products (IMAGE) University of Delaware Caption From waste materials such as wood chips and corn cobs, UD researchers are extracting sugars that can replace petroleum in the manufacture of thousands of consumer products. Credit Evan Krape/ University of Delaware Usage Restrictions Must credit Evan Krape/ University of Delaware License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.