PROCESS FOR ISOLATING AND PURIFYING THE HEPATITIS B SURFACE ANTIGEN

摘要

The supernatant of engineered yeast cells having produced hepatitis B surface antigaen and disrupted in the presence of a polysorbate non-ionic detergent is clarified by addition of urea and adsorbed on colloidal silica from which the purified antigen is desorbed with a low ionic strength buffer supplemented with urea and a polysorbate non-ionic detergent.