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    • 25. 发明专利
    • Cylindrical membrane apparatus for forming foam
    • AU2007276190B2
    • 2012-05-03
    • AU2007276190
    • 2007-07-12
    • NESTEC SA
    • TAPFER KARL UWEMULLER-FISCHER NADINA PATRIZIAWINDHAB ERICH JOSEF
    • B01F3/04A23P30/40B01F5/04B01F7/00
    • An apparatus and process for making a foam having a controlled size distribution of gas bubbles in a liquid matrix. The invention utilizes a porous material having a controlled pore size and pore distance to produce a substantially uniform size distribution of gas bubbles; a gas pumping device for directing a flow of gas to and through the porous material to form the gas bubbles; a fluid pumping device for directing a flow of liquid matrix past the porous material and a rotating element moving in the vicinity of the membrane surface causing an additional flow to detach, collect accumulate and entrain the gas bubbles in the liquid matrix to form a foam having gas bubbles of generally uniform size and a substantially uniform gas bubble size distribution. Advantageously, the pore size and pore distance of the porous material, the gas flow from the gas pumping device, the flow field generated by the rotating element and the liquid flow from the fluid pumping device cooperate to provide gas bubbles having a mean diameter X that is less than 2-2.5 times, preferably les than 1.25-1.5 times the mean pore diameter of the membrane and to provide the foam with a gas bubble diameter distribution ratio X / X th at is less than 5, preferably less than 3.
    • 26. 发明专利
    • Cylindrical membrane apparatus for forming foam
    • ZA200901082B
    • 2010-04-28
    • ZA200901082
    • 2009-02-16
    • NESTEC SA
    • WINDHAB ERICH JOSEFMUELLER-FISCHER NADINA PATRIZIATAPFER KARL UWE
    • A23P30/40B01F20100101
    • An apparatus and process for making a foam having a controlled size distribution of gas bubbles in a liquid matrix. The invention utilizes a porous material having a controlled pore size and pore distance to produce a substantially uniform size distribution of gas bubbles; a gas pumping device for directing a flow of gas to and through the porous material to form the gas bubbles; a fluid pumping device for directing a flow of liquid matrix past the porous material and a rotating element moving in the vicinity of the membrane surface causing an additional flow to detach, collect accumulate and entrain the gas bubbles in the liquid matrix to form a foam having gas bubbles of generally uniform size and a substantially uniform gas bubble size distribution. Advantageously, the pore size and pore distance of the porous material, the gas flow from the gas pumping device, the flow field generated by the rotating element and the liquid flow from the fluid pumping device cooperate to provide gas bubbles having a mean diameter X50,0 that is less than 2-2.5 times, preferably less than 1.25-1.5 times the mean pore diameter of the membrane and to provide the foam with a gas bubble diameter distribution ratio X90,0/X10,0 that is less than 5, preferably less than 3.
    • 28. 发明专利
    • COMESTIBLES SALUDABLES Y NUTRITIVOS DE BAJAS CALORIAS Y BAJO CONTENIDO GRASO
    • PE20080388A1
    • 2008-05-21
    • PE2007000923
    • 2007-07-17
    • NESTEC SA
    • TAPFER KARL UWEWINDHAB ERICH JOSEF
    • A23G9/04A23G9/20A23G9/32A23G9/44A23G9/46A23L1/00A23L2/52A23L2/66A23L23/00A23P1/10A23P30/40
    • DONDE LOS COMESTIBLES ESTAN CONTENIDOS EN UN PRODUCTO ALIMENTICIO JUNTO CON UNA ESPUMA ESTABLE QUE COMPRENDE UNA MATRIZ LIQUIDA, BURBUJAS DE GAS Y AGENTE ESTRUCTURANTE QUE FORMA UNA ESTRUCTURA JAULA LAMINAR O VESICULAR, SIN GENERAR UN GEL QUE IMPARTA UNA TEXTURA GOMOSA A LA ESPUMA, QUE ATRAPA Y ESTABILIZA AL MENOS UNA PORCION DE LAS BURBUJAS Y MATRIZ PARA RETENERLAS EN UNA ESTRUCTURA COMPACTA QUE EVITA EL DRENAJE DE LA MATRIZ Y LA UNION Y CREMOSIDAD DE LAS BURBUJAS MANTENIENDO LA ESTABILIDAD DE LA ESPUMA INCLUSO CUANDO SE EXPONE A GOLPES DE CALOR. LA MATRIZ COMPRENDE UN FLUIDO POLAR; EL GAS ES N, O, Ar Y NO2; LAS BURBUJAS DE GAS TIENEN UN DIAMETRO MEDIO PEQUENO Y ESTAN ESPACIADAS CERCA EN LA ESTRUCTURA PARA EVITAR LA FORMACION DE CRISTALES CONGELADOS COMPACTOS QUE TENGAN DIAMETROS MEDIOS X50,0 DE 50 MICRONES O MAYORES EN LA MATRIZ CUANDO LA ESPUMA ESTA SUJETA A UNA TEMPERATURA DEBAJO DE LA DE CONGELADO DEL LIQUIDO DE LA MATRIZ. EL AGENTE COMPRENDE UN COMPUESTO ANFIFILICO O MATERIAL QUE INCLUYE PORCIONES HIDROFILICAS HINCHADAS QUE FORMAN LA ESTRUCTURA (EMULSIONANTE o PGE PRETRATADO TERMICA, FISICO-QUIMICA Y/O MECANICAMENTE). EL PRODUCTO ALIMENTICIO CONTIENE MENOS DE 1 g DE GRASA/PORCION DE 100 ml; PROPORCIONA UNA DENSIDAD CALORICA DE MENOS DE 200 KCal/100 ml DE MATRIZ SIN BURBUJAS; Y ESTA EN LA FORMA DE BEBIDAS, SOPAS, SALSA O POSTRES ESPUMOSOS CON UNA ESPUMA ESTABLE DURANTE EL ALMACENAMIENTO POR UNA SEMANA A 25°C, AL MENOS 2 MESES A 5°C o AL MENOS 24 MESES BAJO 0°C