Method for the preparation of a stable alkali metal lactate in powder form

Abstract

The invention relates to a method for the preparation of a stable alkali metal lactate in powder form, the product of said preparation, functional pre-mixes for foodstuff comprising said stable alkali metal lactate powder, and foodstuffs comprising said stable alkali metal lactate powder. In the method According to the invention, a concentrate that contains alkali metal lactate is processed, with cooling, in a mixer/extruder to form a powder of the alkali metal lactate. According to the invention the alkali metal lactates in powder form are stable for at least 48 hours.

1 . A method for the preparation of a stable alkali metal lactate in powder form, comprising processing at a starting temperature of 130° C. to 170° C. an aqueous concentrate of 60-100% (m/m) alkali metal lactate cooling the alkali metal lactate to form a powder of the alkali metal lactate, wherein (i) the processing and cooling is performed in a mixer/extruder (ii) and the alkali metal lactate is combine with a carrier before or after processing. 
   
   
       2 . A stable alkali metal lactate powder obtainable by the method of  claim 1  wherein the alkali metal lactate powder has a stability of at least 48 hours. 
   
   
       3 . A functional pre-mix comprising a stable alkali metal lactate powder according to  claim 1 . 
   
   
       4 . A functional pre-mix comprising a stable alkali metal lactate powder according to  claim 2 . 
   
   
       5 . A method for the preparation or preservation of foodstuff comprising adding a stable alkali metal lactate according to  claim 1  to a foodstuff. 
   
   
       6 . A method for the preparation or preservation of foodstuff comprising adding a stable alkali metal lactate according to  claim 2  to a foodstuff. 
   
   
       7 . A method for the preparation or preservation of foodstuff comprising adding a functional pre-mix according to  claim 3  to a foodstuff. 
   
   
       8 . A method for the preparation or preservation of foodstuff comprising adding a functional premix according to  claim 4  to a foodstuff. 
   
   
       9 . A foodstuff comprising a stable alkali metal lactate powder according to  claim 1 . 
   
   
       10 . A foodstuff comprising a stable alkali metal lactate powder according to  claim 2 . 
   
   
       11 . A foodstuff comprising a functional pre-mix according to  claim 4 .