1. The method of combating biofilm, including bringing the specified biofilm in contact with an alginate oligomer. ! 2. The method according to claim 1, where the specified biofilm is on a living or non-living surface. ! 3. The method according to any one of claims 1 or 2, where the biofilm is located on a surface selected from the surfaces of mechanisms or equipment for processing, preparation, storage or dosing of food or beverages, surfaces of an air conditioning installation, surfaces of industrial mechanisms, surfaces of storage tanks surfaces of medical or surgical equipment, surfaces of water / marine equipment, or surfaces of buildings and other structures. ! 4. The method according to claim 3, where the surface is selected from the surfaces of equipment for processing, preparation, storage or dosing of food products, tanks, conveyors, floors, sewers, refrigerators, freezers, equipment surfaces, walls, valves, belts, pipes, plants air conditioning, refrigeration units, dosing lines for food or drinks, heat exchangers, ship hulls, dental technical water supply, pipelines for drilling oil wells, contact lenses, contact miners for storing contact lenses, catheters, prosthetic devices or implantable medical devices. ! 5. Alginate oligomer for use in the treatment or prevention of biofilm infection in a subject. ! 6. The use of alginate oligomer in the manufacture of a medicinal product for use in the treatment or prevention of biofilm infection in a subject. ! 7. The method according to claim 1, where1. Способ борьбы с биопленкой, включающий приведение указанной биопленки в контакте альгинатным олигомером. ! 2. Способ по п.1, где указанная биопленка находится на живой или неживой поверхности. ! 3. Способ по любому из пп.1 или 2, где биопленка находится на поверхности, выбранной из поверхностей механизмов или оборудования для переработки, приготовления, хранения или дозирования пищевых продуктов или напитков, поверхностях установки кондиционирования воздуха, по
