Dec. i, 1920 Some Changes in Florida Grapefruit in Storage 369 



shrinkage of the pulp. In one case, tree 1, stored 67 days, the sugar 

 content is less after storage, probably because of variation in the samples. 

 The results indicate that there may be a slight decrease in sugar at the 

 higher storage temperatures. 



Table VII. — Percentage of sugar, acids, dry matter, shrinkage of fruit, peel, and thickness 

 of the peel of "common Florida" grapefruit stored 5/ days in common storage then 

 placed in warm storage 



TREE I, SECOND PICK 



Time of sampling. 



After 42 days in com- 

 mon storage 



After si days in com- 

 mon storage; 29 

 days at 70° F., ven- 

 tilated 



After 51 days in com- 

 mon storage; 29 

 days at 70 F., un- 

 ventilated 



After 51 days in com- 

 mon storage; 67 

 days at 70 F., ven- 

 tilated 



After 51 days in com- 

 mon storage; 67 

 days at 70 F., un- 

 ventilated 



Acids as 

 citric. 



1. 02 

 1. 01 



Sugars as dextrose. 



Reduc- 

 ing. 



3.62 



Sucrose. 



2-45 

 2.56 



2.38 



Total. 



5-69 



s-ss 



5-56 



Dry- 

 matter. 



9.44 

 9-34 



9-45 

 9.64 



Shrink- 

 age of 

 fruit. 



Thick- 

 ness of 

 peel. 



Mm. 



5-33 



5- 76 



TREE 2, SECOND PICK 



There is a marked difference in the shrinkage of the fruit and percent- 

 age of peel as well as in thickness of the peel in the ventilated and unventi- 

 lated packages, the shrinkage being around. 4 per cent in the unventilated 

 fruit for 67 days and from 20 to 23 per cent for comparable lots stored 

 in ventilated packages. The peel, as would be expected, becomes very 

 much thinner in the fruit stored in ventilated storage. 



There is a marked increase in the percentage of dry matter in the pulp 

 of the fruit stored in ventilated storage, while that of fruit in unventilated 

 packages remains practically constant. 



