472 



MANUAL OF MILK PRODUCTS 



COMPOSITION 



" The chemical composition of the skim-milk powder which 

 is designated as A Grade Ekenflor and of the whole milk 

 powder designated as Grade W Ekenflor is approximately as 

 follows : 



* 



Skim-milk 



Whole Milk 



Albuminoids 



Milk-sugar 



Ash 



Moisture 



Butter-fat 



34-35 per cent 



51 per cent 



7.5-8 per cent 



4 per cent 



25 per cent 



40.0 per cent 



5.3 per cent 



3.0 per cent 



25-27 per cent 



" A modification of this process in which the milk is condensed 

 in a vacuum pan before being placed on the cylinders in the 

 drying chambers is known as the 'Passburg' system." 



The Merrell-Soule process. 1 — In 1905 the Merrell-Soule Com- 

 pany of Syracuse, New York, introduced what is now known 

 as the "spray process" for drying milk. The fundamental 

 principles of desiccation by spraying into a current of warm 

 air were covered by a patent granted to Robert Stauf, a 

 German, in 1901. Merrell-Soule Company purchased this 

 patent in June, 1905, believing it to be the basic patent of this 

 comparatively new art. This confidence was well placed, for 

 the patent, number 666711, has been passed upon favorably 

 by both lower courts and a Court of Appeals. 



The claim in this patent describes the process in the following 

 manner : " The process of obtaining the solid constituents of 

 milk, in the form of powder, said process consisting in converting 

 the liquid into a fine spray, bringing such spray or atomized 

 liquid into a regulated current of heated air so that the liquid 

 constituents are completely vaporized, conveying the dry 



1 Data by R. S. Fleming. 



