The proteins extracted from the seeds of Moringa trees are known as the most effective and environmental friendly coagulating agents for use in water purification as they are non-toxic and can be grown in high yield in many areas. Seeds from different Moringa species show different adsorption and flocculation properties. Even material from the same species can behave differently depending on the purification procedure. In this study we aim to understand the differences in the adsorption behaviour of various proteins from different species extracted to high yield as would be used in practice. The information will allow optimisation of this valuable process with a broader range of seed sources. The results from this study will be used, with knowledge of the molecular composition, to modify growing condition of the trees in order to improve sustainable water treatment techniques.