10 



MASS. EXPERIMENT STATION BULLETIN 296 



mosphere of nitrogen suffered but a slight decrease in antiscorbutic activity. The 

 dried film itself was fully protective at the estimated low level of 0.7 gram, equiva- 

 lent to about 8.4 grams of fresh cranberries. This represents a loss of about 35 per 

 cent. Film manufactured by the same process with no effort to exclude oxygen 

 lost 65 to 70 i)er cent of the vitamin C. 



Table 3. — Vitamin C in Dehydrated Cranberries 



Number Amount Fresh Gain or Survival Scurvy 



of fed fruit loss in period score 



guinea daily equiv- weight average average 



pig3 alent average 



Grams (hams Crams Days 



Evaporated cranberries 



0.83 

 42 



8.3 

 4.2 



-110 



-88 



Cranberry film (pulped and 

 dehydrated in air) 



+ 164 

 + 3 



90 

 90 



Cranberry film (pulped and 

 dehydrated in nitrogen)... 



*Discontinued. 



(3 



1^ 



1.5 

 1.0 



+ 118 

 + 333 

 + 119 



30* 



90 



00 



1*0 60 



In Days 



Figure ."?. — Vitamin C Content of Dehydrated Oanberries 



Product tested 



1 Cranberry film prepared under nitrogen 



2 Raw cranberries 



3 Cranberry film prepared under air 



4 Cranberry film prepared under nitrogen 



5 Cranberry film prepared under air 



6 Evaporated cranberries 



7 Basal Ration only 



