314 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION 



8. The total amount of sugars decreases in frozen fruit. The 

 average amount in unfrozen oranges of size 150 's being 6.5 grams, 

 while in those that are frozen it decreases to less than 2 grams. The 

 same holds true with lemons. Unfrozen lemons of standard ring size 

 have an average of 1 gram per fruit, while those that are frozen 

 decrease from .7 to .2 gram per fruit. 



9. No change was found in the relative amounts of the different 

 sugars present. 



10. The per cent of acid in the juice of frozen citrus fruits de- 

 creases slightly when compared with the unfrozen. The weight of 

 acid per fruit in unfrozen fruit remains nearly constant, while in 

 that which is frozen it continues to decrease until practically none 

 remains. 



11. Frosted citrus fruits that remain on the tree continue to in- 

 crease in size, this development being a thickening of the rind. 



