ENZYMATIC PERACID PRODUCTION USING A COSOLVENT

• Main Authors: CAHILL, WILLIAM R, REYNOLDS, RICHARD ALAN, HANN, EUGENIA, COSTA, DICOSIMO, ROBERT, DIPIETRO, DAVID, GEORGE
• Format: Patent
• Language: English; French
• Published: 08.04.2010
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; BEER; BIOCHEMISTRY; BLEACHING LEATHER OR FURS; CANDLES; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; DETERGENT COMPOSITIONS; DETERGENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; ENZYMOLOGY; FATTY ACIDS THEREFROM; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; HUMAN NECESSITIES; HYGIENE; LAUNDERING; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; SPIRITS; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; USE OF SINGLE SUBSTANCES AS DETERGENTS; VINEGAR; WINE

Disclosed herein are two-component enzymatic peracid generation systems and methods of using such systems wherein the first component comprises a formulation of at least one enzyme catalyst having perhydrolysis activity, a carboxylic acid ester substrate, and a cosolvent and wherein the second component comprises a source of peroxygen in water. The two components are combined to produce an aqueous peracid formulation useful as, e.g., a disinfecting or bleaching agent. Specifically, organic cosolvents are used to control the viscosity of a substrate-containing component and to enhance the solubility of the substrate in an aqueous reaction formulation without causing substantial loss of perhydrolytic activity of the enzyme catalyst. L'invention concerne des systèmes de production de peracide enzymatique à deux constituants ainsi que des procédés utilisant ces systèmes. Le premier constituant comprend une formulation composé au moins d'un catalyseur enzymatique présentant une activité perhydrolytique, d'un substrat d'ester d'acide carboxylique, et d'un cosolvant. Le second constituant comprend une source de peroxygène dans de l'eau. Les deux constituants sont combinés pour produire une formulation de peracide aqueuse utilisable notamment comme agent de désinfection ou de blanchiment. Plus particulièrement, des cosolvants organiques sont utilisés pour réguler la viscosité d'un constituant comprenant un substrat et pour améliorer la solubilité du substrat dans une formulation de réaction aqueuse sans entraîner une dégradation sensible de l'activité perhydrolytique du catalyseur enzymatique.