Abstract: | A comparative study has been made on zein preparations isolated from gluten by extraction with 70% ethanol and precipitation under various conditions; by dialysis, and by the addition of a 0.1 M solution of sodium sulfate or of acetone. An investigation of absorption spectra and of electrophoresis in polyacrylamide gel has shown the advantage of the method using acetone for precipitating the protein preparation.Scientific-Research Institute of Biology, Dnepropetrovsk State University. Translated from Khimiya Priorodnykh Soedinenii, No. 5, pp. 695–699, September–October, 1989. |