UN QUITOSANO EN FORMA DE POLVO FINO Y CONTROLADO, SU UTILIZACION PARA LUCHAR CONTRA CIERTAS LEVADURAS TALES COMO BRETTANOMYCES, Y UN METODO DE TRATAMIENTO DE UN LIQUIDO ALIMENTICIO

• Main Authors: LOUIS - GRANES DANIELS, BORNET AURELIE, PIC-BLATEYRON LUCILE, TEISSEDRE PIERRE, GAUTIER SANDRINE, MAQUET VERONIQUE
• Format: Patent
• Language: Spanish
• Published: 07.11.2012
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DERIVATIVES THEREOF; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

La presente se refiere a un quitosano en forma de polvo micronizado, a su utilización para luchar contra ciertas levaduras, tales como Brettanomyces, y a un método de tratamiento de un líquido alimenticio. La presente se refiere, en particular, a un quitosano insoluble en agua en forma de polvo micronizado, cuya granulometría está comprendida entre 5 y 50 mm, y a su utilización en el tratamiento de líquidos alimenticios y/o para luchar contra Brettanomyces. Water insoluble chitosan in the form of powder having a particle size of 5-50 microns, is claimed. Independent claims are included for: (1) a composition comprising the chitosan; and (2) #a method of curative and/or preventive treatment of a food liquid of vegetable origin, such as a food liquid of plant origin prepared by fermentation, where undesirable yeasts are to be eliminated, of which the presence is to be prevented, and/or where the population is to controlled, preferably yeasts of genus Brettanomycesand/or Dekkera, preferably yeasts of B. anomalus, B. bruxellensis, B. claussenii, B. custersianus, B. Lambicus, B. naardenensisand/or B. nanus, comprising placing, in the presence of food liquid with a water insoluble chitosan in powder form of which a particle size is 0.1-200 microns at a concentration of 1-10 g/hl of food liquid to be processed, preferably 2-5 g/hl of food liquid to be processed, the chitosan or the composition. ACTIVITY : Fungicide; Antibacterial. MECHANISM OF ACTION : None given.