244 



FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



TABLE 181. Influence of ingestion of 100 grams sucrose on the respiratory quotient in 



respiration experiments. 



'Average of two quotients, 0.83 and 0.82. 



2 Average of three quotients, 1.03, 1.08, and 1.12 (3 to 5 minute periods). 



'Average of three quotients, 1.14, 1.14, and 1.11 (5 minute periods). 



special interest in this connection as possibly indicating a greater 

 storage of glycogen or a more tenacious hold of the previous store than 

 is ordinarily the case. 1 



The smallest rise in the quotient was obtained in the experiment 

 with A. F. G. on May 20, 1911, this being but 11 points above the basal. 

 The averages for all of the experiments show, with an average basal 

 quotient of 0.83. a maximum value after the ingestion of sucrose of 1.03. 

 The average maximum rise was 21 points. It should be observed that 

 the average is obtained in this and similar tables by averaging the 

 maximum increases for the individual experiments. 



LACTOSE. 



The respiratory quotients in five experiments with 100 grams of lac- 

 tose are given in table 182. The basal values were remarkably uniform, 

 ranging from 0.81 to 0.84, with an average of 0.83. None of the men 

 had served as subjects for the carbohydrate-free experiments. With- 

 out laying stress upon the individual experiments and considering only 

 the general picture, we find that there was a slow, steady rise in the 

 quotient which was followed by a fall ; the rise in this series was longer 

 continued than in any of those previously discussed. Values of 0.98 or 

 over are rare in the experiments with lactose, there being but three in 

 all. The maximum rise of 18 points was found in the experiment with 

 K. H. A., May 23, 1912; the minimum rise of 7 points occurred with 

 C. H. H., on May 23, 1911; the average maximum rise for the whole 

 series was 14 points. 



'Benedict and Joslin, Carnegie Inst. Wash. Pub. No. 176, 1912, p. 131. 



