Precoat filtration media and methods of making and using

Details Precoat filtration media and methods of making and using Precoat filtration media and methods of making and using

Category

B - Operations, Transporting

Subcategory

01

Subsubcategory

J

IPC codes

B01J 20/00 (2006.01) B01D 37/02 (2006.01) B01D 39/16 (2006.01) B01D 39/18 (2006.01) B01D 39/20 (2006.01) B01J 20/28 (2006.01) B01J 20/32 (2006.01) C02F 1/50 (2006.01) C12H 1/044 (2006.01) C12H 1/056 (2006.01) A23L 2/72 (2006.01) C02F 1/28 (2006.01) C02F 1/42 (2006.01)

Type

Patent

Patent number

CA 2474980

Description

The invention is directed to a precoat or body feed composition comprising a microbiological interception enhanced filter aid. Preferably, the microbiological interception enhanced filter aid comprises fibrillated lyocell nanofibers having coated on at least a portion of a surface thereof, a microbiological interception enhancing agent. The microbiological interception enhanced agent comprises a cationic material in combination with a biologically active metal. At least about 4 log reduction in bacterial interception is achieved with the microbiological interception enhanced filter aid alone or in combination with a bulk, untreated filter aid. A precoat composition including the microbiological interception enhanced filter aid can be used for one-step cold sterilisation of beverages.

L'invention concerne une composition de précouche ou d'alimentation comprenant un élément filtrant favorisant l'interception microbiologique. Ledit élément filtrant favorisant l'interception microbiologique comprend, de préférence, des nanofibres Lyocell fibrillées enrobées sur au moins une partie de leur surface d'un agent favorisant l'interception microbiologique. L'agent favorisant l'interception microbiologique comprend un matériau cationique combiné à un métal biologiquement actif. On obtient une réduction d'au moins environ 4 log dans l'interception bactérienne à l'aide de l'élément filtrant favorisant l'interception microbiologique, seul ou combiné à un élément filtrant non traité brut. Une composition de précouche comprenant l'élément filtrant favorisant l'interception microbiologique peut être utilisée dans la stérilisation à froid en une étape des boissons.

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