Abstract
The purpose of this study is analyzing the extracellular polysaccharides (EPS) released into the culture fo microalgae isolated from 22 units of water resource management of the São Paulo state's (UGRHI) to use them as characteristic chemotaxonomic approach. Microalgae species belonging to the Selenastraceae family (complex Akistrodesmaceae/ Selenestraceae/ Chlorellaceae/ Oocystaceae). Th…