It was the aim of the authors to examine the purification methods of the starch hydrolizate using the following adsorbents: Fuller's Earth, CaSO4- dead burnt, activated coal, Amberlit IRA-410, Duolit C-20, Kaolin S, Kaolin NS and Al2O3 for Chromatography. Fermentation of the purified starch hydrolizate carried out withAspergillus niger C2, showed that it could be used as a substrate for the citric acid fermentation. We obtained the best results using starch hydrolizates with a concentration of 10,24% of sugars purified with Amberlit IRA-410, 0,1–0,25% activated coal, Fuller's Earth and CaSO4.