Moringa Tree (IMAGE) Uppsala University Caption Seeds from Moringa oleifera trees can be used to purify water. Uppsala University leads a research group which has discovered that seed material can give a more efficient purification process than conventional synthetic materials in use today. Credit Majority Kwaambwa Usage Restrictions Can be published in connection to stories about research from Uppsala University. 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.