title: [Method of obtaining crystalline choleragen and choleragenoid preparations].
abstract: A new method of concentration and purification developed allows to obtain choleragen and choleragenoid preparations, homogeneous in the immunochemical analysis with regard to the culturing of vibrios producing these substances on the available nonsynthetic nutrient medium. Crystalline choleragen and choleragenoid preparations were obtained from highly purified samples. Choleragen possessed enterotoxic and skin premeability factors; choleragenoid shows no biological activity.
mesh_terms: D002850:Chromatography, Gel / Q000379:methods; D003460:Crystallization; D003470:Culture Media; D004589:Electrophoresis, Disc; D004768:Enterotoxins / Q000302:isolation & purification*; D005779:Immunodiffusion; D014734:Vibrio cholerae / Q000254:growth & development
chemical_list: D003470:Culture Media; D004768:Enterotoxins
vernacular_title: Poluchenie kristallicheskikh preparatov kholerogena i kholerogenoida.