Comparative study of sour cherry samples for their anthocyanin content measured by tools of the laboratory and by portable equipments

The inner quality of fruits depends on many components. The analysis of pharmacologically important fruit species as the sourcherry consumed as a common food is an expensive task, mostly requiring an equipped laboratory. In sour cherry, one of its valuablecomponents, the anthocyanin content deserves special attention. A portable analytical implement, which has been developed by our teammeasures the anthocyanin content on a scale of 1024 PharMgrades. The system is a member of the UVEX family of implements working witha microprocessor and performs the measurement quickly. The portable variant (UVEX-ML-1) does not require much training, the laboratoryvariant (UVEX UL-1) performs a large quantity of tests under modest laboratory conditions. Preparation of the samples is easily done, thenecessary elements are available in the trade. The reagent is easily stored and dosed. The system was tested and proved to be of sufficientprecision and the result showed acceptable variance according to the checks performed by a spectrophotometer in the laboratory