Kcal energy complete oxidation glucose theoretical practical values
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The determination of the energy values, specifically the heat of
combustion, of various foods and excreta forms an important part
of many investigations in nutrition. The calorimetric bomb is
commonly used for these determinations, but its complexity of
manipulation and its almost prohibitive cost greatly narrow the
opportunities for making such studies. Moreover the calculation
of results is time-consuming and usually involves more mathematics than are warranted by the highest limit of accuracy possible
in the preparation of the sample from unhomogeneous material.
As an outcome of research on the respiration of man and the
development of simplified apparatus for measuring the actual
oxygen consumption during the processes of oxidation in the body,
a principle for the determination of the energy values of foods and
feces in the case of both men and animals has been experimentally
tested and embodied in an apparatus which is less complicated, less
expensive, and which enables simpler calculation of results than
does the bomb calorimeter.
The fundamental principle of t