'Periodica Polytechnica Budapest University of Technology and Economics'
Abstract
The proteins were extracted from cowpea seeds by buffered saline solution and the
globulins were separated by dialyzing the protein extract against distilled water. Fractionation of
the total globulins on Sephacryl S-200 column produced two major and one minor components.
The molecular weight of the major globulin components were estimated to be greater than
250000 and 178 000 for the globulin component (a) and (b) respectively and the latter component
was the predominant globulin. The two major globulin components were free from
contamination of other proteins as shown by polyacrylamide gel electrophoresis. Spectrophotometry and amino acid analyses were used as tools for characterizing the globulin components