Everyday Enzymes Grown In Plants (IMAGE) University of Pennsylvania Caption Researchers at the University of Pennsylvania have used plants to produce enzymes used in products from blue jeans to orange juice. They say the process is cheaper and more environmentally than current enzyme production practices. Credit Uma Kumari/University of Pennsylvania Usage Restrictions In context of reporting 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.