[protein] Phaseolin is the main reserve globulin in seeds of the French bean (Phaseolus vulgaris L.). It was named and first isolated and characterized by Thomas Burr Osborne in 1894. ...[pterocarpan] Phaseolin is a prenylated pterocarpan found in French bean (Phaseolus vulgaris) seeds and in the stems of Erythrina subumbrans. ...