Biomass Conversion (IMAGE) Indiana University Caption Biomass being crushed using liquid nitrogen causes ice to form outside the bowl. The researchers later realized that crushing the biomass in these conditions was unnecessary. Credit Timothy A. Kremer, Indiana University Usage Restrictions None 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.