Materials and methods 2.1. MaterialsAs the object of the study, the orange jelly recipe, listed in the collection of recipes for catering, was used. The recipe included orange juice without pulp, gelatin, sugar, water and citric acid.In our technology, water was replaced with acid whey, and Citrus Fibre 7000 (manufactured by Bernello Ingredients GmbH) was used as the stabilizing and functional-technological component.