Dec. 27, 191S Carbohydrate Transjormations in Sweet Potatoes 



547 



To determine the effect of storage on the composition of different 

 parts of the same sweet potato a number of other potatoes which had 

 been stored for various lengths of time under different conditions were 

 examined. One set of three potatoes was kept in the laboratory for four 

 days. The other sets were stored for a month in the different chambers 

 with the experimental potatoes. 



In this case two samples were taken from each half, but the determina- 

 tions were not made in duplicate for each sample. The results of 

 these analyses are collected in Table II. 



Table II. — Percentage composition of halves of sweet potatoes kept for various times 

 under different conditions 



KEPT IN LABORATORY FROM NOV. 6 TO NOV. lO 



STORED IN 30 C. CHAMBER FROM NOV. 7 TO DEC. 5 



iioa 

 nob. 

 ma 

 nib. 



•75 

 .64 

 .64 

 .70 



.72 

 .76 



•75 



6-3 



4.72 

 4-69 

 4-97 

 5-03 

 4.82 

 4-78 

 4-93 

 4.88 



6-3. 



15-49 

 15-54 

 16. 21 



16. 04 

 16.79 



16-57 

 17.27 



17. 14 



3.9 



3-1 



STORED IN 15.5 C. CHAMBER FROM OCT. 17 TO NOV. 



