136 CASEIN. 



CASEIN FOOD. 



Milk casein or curd is dissolved and its acidity, determined 

 by -testing, is partially neutralised, the resulting mass being 

 dried, sterilised and used as a foodstuff. 



SELL'S CURD "ZWIEBACK" ROLLS. 



Precipitated casein is mixed with milk sugar, exposed to 

 the action of kephir ferments and neutralised, the product 

 being absorbed by Zwieback powder (Zwieback is a kind of 

 roll made in Germany) and dried. 



