2.4. Fruit juice analysis
2.4.1. Ascorbic acid
Fruit juice samples (both traditionally prepared and those with
added bergamot juice) were centrifuged at 1650g for 5 min at4 C. The supernatant was used for determination of the ascorbic
acid content by titration with DIF (2,6-dichlorophenolindophenol
sodium salt hydrate) according to the AOAC Official Method
(1995), chap. 45. Results were expressed as mg ascorbic acid/ml
juice.