Vitamin C Contents in Processed Florida Citrus Juice Products from 1986−1995 Survey

Vitamin C content in citrus juices processed in Florida was studied. A total of 2299 samples from February 1986 through October 1995 (908 frozen concentrated orange juices, 401 orange juices from concentrate, 319 pasteurized orange juices, 213 pasteurized grapefruit juices, and 458 grapefruit juices from concentrate) were obtained from 21 Florida processors for analysis of vitamin C. Means, standard deviations of the means, and maximum and minimum values are presented for each product on the basis of milligrams of vitamin C per 100 mL of product. Variations are reported for month, year, and manufacturing plant for each type of juice. Keywords: Vitamin C; citrus juice; orange juice; grapefruit juice; Florida