3.2. Preference tests
3.2.1. Multiple comparison test (preference) The obtained results for the multiple comparison tests are shown in Fig. 2. It can be seen from the figure that the least desired juice was the thermally treated juice. The test clearly pointed out that the most desirable sensory attributes were that of the fresh juice followed by ultrasound and ultrasound + UV treated. Ultrasound processed juice was more or less equally liked as compared to the fresh juice and appreciated by the consumers. In the case of ultrasound along with UV, there is heat generation that
may cause slight decrease in sensory attributes though not recognized in terms of ranks given by the consumers. Thermal processing strongly changed the sensory property of orange juice due to
the possible degradation of the active ingredients. Sensory evaluations indicated that flavor of ultrasound processed juice was preferred as compared to that of the thermally processed juice.