Water insoluble chitosan powder and method of limiting brettanomyces yeast in fermented liquids

• Main Authors: TEISSEDRE PIERRE-LOUIS, GRANES DANIELS, PIC-BLATEYRON LUCILE, GAUTIER SANDRINE, MAQUET VÉRONIQUE, BORNET AURÉLIE
• Format: Patent
• Language: English
• Published: 03.11.2015
• Subjects: AGEING; AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; CLARIFICATION; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DERIVATIVES THEREOF; ENZYMOLOGY; FISHING; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; FORESTRY; HUMAN NECESSITIES; HUNTING; HYGIENE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; ORGANIC MACROMOLECULAR COMPOUNDS; OTHER ALCOHOLIC BEVERAGES; PASTEURISATION; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLYSACCHARIDES; PREPARATION THEREOF; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESERVATION; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; PURIFICATION; SPIRITS; STERILISATION; 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; TRANSPORTING; TRAPPING; VINEGAR; WINE

The invention relates to a chitosan as a micronized powder, to its use for controlling certain yeasts, such as Brettanomyces, and to a method for treating a liquid food. The invention in particular relates to a water-insoluble chitosan as a micronized powder, for which the grain size is comprised between 5 and 50 microns, and to its use in the treatment of liquid foods and/or for controlling Brettanomyces.