Protein Analysis (IMAGE) DOE/Pacific Northwest National Laboratory Caption While the traditional protein digestion method (top) can take several hours, the pressurized process developed by PNNL and PressureBioSciences (bottom) takes just a few minutes. Credit PNNL 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.