Fruit juices contain significant quantities of sugars (glucose,fructose and sucrose) and are of importance as source of dietaryenergy.
Low calorie juices are of interest for human health due to their contribution to weight loss and decreasing obesity [1–4].
Sugarless carbonated beverages, although available on the market,are the subject of much debate [5].
Furthermore, up to date there is no equivalent replacement for fresh fruit juice taste and other beneficial components present in juices, like antioxidants [6].
For consumers who wish to control their weight or other problems related to high sugar consumption, researchers have been trying to develop alternative products with low sugar content [7] or sucrose substitutes like isomaltulose [8] or tagatose [9].
The challenge of producing fruit juices with low caloric value involves the conversion of sugars into dietetic derivatives, but to keep other qualities including the desired sweet taste widely unchanged [10].