Method for pretreating grain before milling

Abstract

The invention relates to a method for pretreating grain before milling, comprising the following steps: a) providing cereal; b) optionally: dampening and conditioning the cereal; c) selectively removing a first fraction of husk components of the cereal obtained from step b), wherein said first fraction substantially comprises the outer husk components of the dampened cereal, and wherein 0.2 to 2% by weight of the cereal is removed; d) dampening and conditioning the cereal obtained from step c); e) selectively removing a second fraction of husk components of the cereal obtained from step d), wherein said second fraction substantially contains dietary fibers of the dampened cereal. The method makes it possible to efficiently obtain contamination-free total dietary fibers. An apparatus for carrying out the method, and advantageous uses of the total dietary fibers are described.

1 - 15 . (canceled) 
     
     
         16 . A method for pretreating grain before milling, comprising the following steps:
 a) providing cereals;   b) optionally: dampening and conditioning the cereal;   c) selectively removing a first fraction of husk components of the cereal as per step a) or of the cereal obtained from step b), wherein said first fraction substantially comprises the outer husk components of the dampened cereal, and wherein 0.2 to 2% by weight of the cereal is removed;   d) dampening and conditioning the cereal obtained from step c);   e) selectively removing a second fraction of husk components of the cereal obtained from step d), wherein said second fraction substantially contains dietary fibers of the dampened cereal.   
     
     
         17 . The method as claimed in  claim 16 , wherein the cereal provided in step a) has a moisture content of ≧14% by weight. 
     
     
         18 . The method as claimed in  claim 16 , wherein the cereal provided in step a) has a moisture content of <14% by weight. 
     
     
         19 . The method as claimed in  claim 16 , wherein the second fraction removed in step e) has a total dietary fiber content of ≧60% by weight. 
     
     
         20 . The method as claimed in  claim 16 , wherein the second fraction removed in step e) has a starch content of ≦20% by weight. 
     
     
         21 . The method as claimed in  claim 16 , wherein step e) is carried out in a plurality of partial steps e 1 ) to e n ). 
     
     
         22 . The method as claimed in  claim 21 , wherein the fractions or partial quantities thereof obtained in the partial steps e 1 ) to e n ) are mixed with one another in such a manner that the mixture has a total dietary fiber content of ≧60% by weight. 
     
     
         23 . The method as claimed in  claim 21 , wherein the fractions or partial quantities thereof obtained in the partial steps e 1 ) to e n ) are mixed with one another in such a manner that the mixture has a starch content of 20% by weight. 
     
     
         24 . The method as claimed in one of  claims 21 , wherein the cereal is dampened and conditioned again between the partial steps e 1 ) to e n ). 
     
     
         25 . The method as claimed in  claim 16 , wherein the dampening and conditioning in step b) are carried out in a dampener turbolizer; and/or the dampening and conditioning in step d) and/or between the partial steps e 1 ) to e n ) are carried out in a dampening and retaining screw conveyor. 
     
     
         26 . The method as claimed in  claim 16 , wherein the components of the first and/or second fraction in the steps c) and d) are removed from the cereal grain substantially by grain/grain friction. 
     
     
         27 . A plant for carrying out a method as claimed in  claim 16 , comprising, in the product flow direction:
 i) a device for processing the surface of the cereal by peeling;   ii) a dampening unit for dampening and conditioning the cereal, preferably a dampening and retaining screw conveyor;   iii) a device for processing the surface of the cereal by peeling.   
     
     
         28 . The plant as claimed in  claim 27 , wherein the peeling in the device(s) for processing the cereal by peeling can be obtained substantially by grain/grain friction. 
     
     
         29 . The plant as claimed in  claim 27 , wherein the device for processing the surface by peeling has:
 a rotatably mounted rotor;   a stator which in particular is provided with processing tools;   at least one screen basket which is in particular formed from one or more screen plates and is preferably arranged on the stator, the at least one screen basket surrounding the rotor in such a manner that a processing zone is formed;   wherein the rotor comprises a hollow shaft through which air can be fed into the processing zone, and the rotor has, in the region of the processing zone, a roller.   
     
     
         30 . A plant according to  claim 27 , further comprising, in the product flow direction before the device i) for processing the surface of the cereal by peeling
 a tempering bin for preconditioning the cereal to a defined moisture content; and/or   a dampening unit for dampening and conditioning the cereal.   
     
     
         31 . A method of supplementing foodstuffs chosen from the group consisting of baked goods, preferably breads; cereals; snacks, in particular bars; drinks; milk products, in particular yoghurt; food supplements; diet foods;
 comprising the step of adding dietary fibers obtained by a method as claimed in  claim 16  to the foodstuff.