Keywords: آلبومین سرم خرگوش; BR; bilirubin; BSA; bovine serum albumin; CD; circular dichroism; dCD; difference circular dichroism; GS; gossypol; HSA; human serum albumin; Ibf; ibuprofen; PSB; phosphate saline buffer; RbSA; rabbit serum albumin; RSA; rat serum albumin; SA; serum album