MEASUREMENT OF ENERGY VALUES 



23 



In the case of carbohydrates and fats the end-products are 

 those of complete oxidation, but in the case of proteins, the 

 final results of metabolism are not substances of the lowest 



FlO. 2. Berthelot-Mahler Bomb Calorimeter. 

 A. Bomb or autoclave (see Fig. 3). 

 H. Insulating vessel. 



G. Manometer on stand with unions to fix to oxygen cylinder and to bomb (at S, Fig. 3). 

 D. A steel mould for making pellets from the material to be burned. 



energy content, i.e. protein is not completely oxidised. Further, 

 these protein end-products are eliminated in solution, and this 

 requires some correction. Finally, to obtain the correct content 



