According to the results, moisture content and water activity values of the pumpkin
powders were in acceptable limits for safe storage of products. Freeze drying process decreased vitamin C
content by 18%, total carotenoid content about 26% and the total phenolic compounds as 3%. Among
the powder properties of the dried product, the bulk density was found to be 0.113 g/ml and average
wettability and solubility times were determined as 710 and 16 s, respectively. Determination of flowability
and cohesiveness in terms of Carr Index and Hausner ratio were evaluated as fair and intermediate levels
respectively.