Spray dried enzyme product

Abstract

The invention relates to a particle comprising an enzyme and a biomass, to a process for preparing a particle comprising spray drying an enzyme and biomass containing fermentation broth starting material, to obtain a solid particle comprising an enzyme and a biomass and to a process for preparing an enzyme containing particle comprising spray drying an aqueous enzyme containing liquid starting material to obtain a spray dried first enzyme containing particle and subsequently subjecting the first dry particle to a process selected from granulation and coating and combinations thereof to obtain a second dry enzyme containing particle.

1 - 31 . (canceled)  
     
     
         32 . A process for preparing an enzyme containing particle comprising spray drying an enzyme containing liquid by means of a Rayleigh Atomizer spray drying device, to obtain a solid particle comprising an enzyme.  
     
     
         33 . The process of  claim 32 , wherein the particles have a SPAN value below about 2.5.  
     
     
         34 . The process of  claim 32 , wherein the particles have a SPAN value below about 1.5.  
     
     
         35 . The process of  claim 32 , wherein the particles have a SPAN value between 0.9 to 1.3.  
     
     
         36 . The process of  claim 32 , further comprising subjecting the particles of claim  1  to a process selected from granula-tion and coating and combinations thereof.  
     
     
         37 . The process of  claim 36 , wherein the granulation process is selected from mixer granulation, prilling, extrusion, fluid bed and compacting processes.  
     
     
         38 . The process of  claim 32 , further comprising the step of additional drying of the particles in a fluid bed dryer.  
     
     
         39 . The process of  claim 32 , wherein the enzyme containing liq-uid has been subjected to a physical treatment selected from heating, cooling, radiating, mixing, aerating and ul-tra-sound treatment.  
     
     
         40 . The process of  claim 39 , wherein the enzyme containing liq-uid has been heated or cooled to 5-150° C.  
     
     
         41 . The process of  claim 32 , wherein the enzyme containing liquid has been sterilised.  
     
     
         42 . The process of  claim 32 , wherein the enzyme containing liquid has been treated to hydrolyse polynucleotides pre-sent in the starting material.  
     
     
         43 . The process of  claim 32 , wherein the enzyme containing liquid is a fermentation broth, an enzyme filtrate or an enzyme concentrate.  
     
     
         44 . The process of  claim 43 , wherein the fermentation broth or the filtrate contain at least 3 mg active enzyme pro-tein per liter liquid phase.  
     
     
         45 . The process of  claim 32 , wherein the enzyme containing liquid has a viscosity of 5-5000 cps.  
     
     
         46 . The process of  claim 32 , wherein additives selected from inorganic salts, inorganic minerals or clays, carbohy-drates, coloring pigments, cellulose or derivatives thereof, biocides, dispersants, anti foaming agents, vis-cosity regulating agents, acid agents, alkaline agents, enzyme stabilizers, enzyme inhibitors, binders, other en-zymes and combinations thereof has been added to the en-zyme containing liquid.  
     
     
         47 . The process of  claim 32 , wherein the enzyme is selected from oxidoreductases (EC 1.-.-.-), transferases (EC 2.-.-.-), hydrolases (EC 3.-.-.-), lyases (EC 4.-.-.-), isomerases (EC 5.-.-.-) and ligases (EC 6.-.-.-).  
     
     
         48 . An enzyme containing particle obtainable by the process of  claim 32 .  
     
     
         49 . A composition comprising the particles of  claim 48 .  
     
     
         50 . The composition of  claim 49 , wherein the composition is selected from cleaning compositions, textile processing compositions, leather processing compositions, pulp or paper processing compositions, food and beverage compositions, animal feed compositions and personal care compositions.  
     
     
         51 . The cleaning composition of  claim 50 , wherein the cleaning composition is a detergent composition further comprising a surfactant.  
     
     
         52 . A method for cleaning an object with a composition of  claim 51.