FOOD. Science. Technology. Quality

Food. SCIENCE. Technology. Quality

Food. Science. TECHNOLOGY. Quality

Food. Science. Technology. QUALITY




Sensory quality of frozen-dried and air-dried seasoning vegetables


The differences in the quality of the dried products’ odour in relation to the drying method seems to be interesting from their manufacturers and consumers point of view. Taking this into account the aim of this study was to compare the sensory intensity and typicality of selected fresh and dried seasoning vegetables (parsley leaves, chives, dill, garlic, onions and horse-radish) differing in their level of fragmentation. The processed products were compared with unprocessed samples. The study analyzed sensory intensity and typicality of samples odour immediately after taking out of their commercial packaging and in model meat-vegetable bullions. The following sensory quality assessment methods were used: ranking test, scaling test and QDA. The ranking test revealed significant differences between samples from different manufacturers. The level of fragmentation, despite differentiating the samples, was not statistically relevant for the tested parameters. The results obtained suggest, that the quality of food products and meals produced with air dried products and freeze dried was different, and that increasing the amount of dried product in the recipe did not overcome problems with low intensity and typicality of the odour. This was especially relevant for the air dried products, as the process of air drying introduces irrecoverable losses in aromatic compounds resulting in a change in the odour profile of seasoning vegetables. This was confirmed in the scaling test and QDA method.


conventional and frozen dried seasoning vegetables, sensory quality, ranking test, scaling method, QDA method