Grapes (image) Technical University of Munich (TUM) Share Print E-Mail Caption As the grapes ripen, more and more aroma compounds accumulate in their skin. Credit Johanna Frotscher/Hochschule Geisenheim Usage Restrictions Free for use on this research work with the copyright mentioned. Share Print E-Mail 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.