METHOD TO INCREASE THE FOAMING CAPACITY OF SPRAY-DRIED POWDERS

• Main Authors: VAN SEEVENTER, PAUL BASTIAAN, ZELLER, BARY LYN, POORTINGA, ALBERT THIJS
• Format: Patent
• Language: English; French
• Published: 01.10.2013
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COFFEE; DAIRY PRODUCTS, e.g. MILK, BUTTER, CHEESE; DYES; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; MAKING THEREOF; MANUFACTURE, PREPARATION, OR INFUSION THEREOF; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MILK OR CHEESE SUBSTITUTES; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS; TEA; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR RELEVANT APPARATUS; THEIR SUBSTITUTES; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING

A method is provided for producing a powdered soluble foaming composition comprising amorphous particles having internal voids filled with atmospheric pressure gas. The method includes subjecting a spray-dried composition to an external pressure and heating the composition at a temperature below the glass transition temperature. The composition is depressurized to result in at least a portion of vacuous internal voids of the composition to be filled with atmospheric pressure gas. L'invention porte sur une méthode pour produire une composition moussante soluble en poudre qui contient des particules amorphes dont les vides internes sont remplis par des gaz atmosphériques sous pression. Le procédé implique d'exposer une composition desséchée par pulvérisation à une pression externe et de la chauffer à une température inférieure à celle de la transition vitreuse. La composition est ensuite mise en dépression pour obtenir au moins une partie de vides internes à remplir par des gaz atmosphériques sous pression.