See under QDA.
Abbreviation for "Quantitative Descriptive Analysis", a basic methodology for analytical food sensory testing. A descriptive sensory analysis aims to identify and quantify sensory product characteristics by means of objective description of human perception and to reveal relationships between the chemical-physical components of a product and the sensory characteristics of this product by trained persons. The intensity of certain properties or characteristics is measured using an intensity scale. Such a quantitative descriptive analysis, which is also called profile analysis or profile testing, also makes it possible to graphically display the differences between several products for defined properties.
Besides QDA, there are also other difference tests. These...
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