Before the addition of ascorbic acid to the drinks, the ascorbic
acid contentswere measured as 19.25, 19.65, 0.79 and 0.39 mg/
100 mL for orange, orange-grape, apple, and apple-grape drinks,
respectively. Orange drinks possessed the highest ascorbic acid
content (P < 0.05) due to the high ascorbic acid content of the
raw material. For each 100 mL CJD, the ascorbic acid content increased
to approximately 80 mg. The ascorbic acid content of
the pasteurized CJD varied between 81.39 and 113.5 mg/100 mL
after the addition of 0.1% ascorbic acid to the formulations.The
ascorbic acid content of the drinks was decreased to 2–6% after
the pasteurization process. Also with the addition of ascorbic
acid to the drinks, inhibition of the oxidation of the blending
components including the collagen was aimed.