Abstract
Sensory assessors determine the result of sensory analysis; therefore, investigation of panel performance is inevitable to obtain well-established results. In the last few decades, numerous publications examine the performance of both panelists and panels. The initial point of any panelist measures are the applied selection methods, which are chosen according to the purpose (general suitability or product-specific skills). A practical overview is given on the available solutions, methods, protocols and software relating to all major panelist and panel measure indices (agreement, discrimination, repeatability, reproducibility and scale usage), with special focus on the utilized statistical methods. The novel approach of the presented methods is multi-faceted, concerning time factor (measuring performance at a given moment or over a period), the level of integration in the sensory testing procedure and the target of the measurements (panelist versus panel). The present paper supports the choice of the performance parameter and its related statistical procedure. Available software platforms, their accessibility (open-source status) and their functions are thoroughly analyzed concerning panelist or whole panel evaluation. The applied sensory test method strongly defines the applicable performance evaluation tools; therefore, these aspects are also discussed. A special field is related to proficiency testing. With the focus on special activities (product competitions, expert panels, food and horticultural goods), practical examples are given. In our research, special attention was given to sensory activity in companies and product experts or product-specific panels. Emerging future trends in this field will involve meta-analyses, application of AI and integration of psychophysics.
Highlights
Sensory evaluation is a science that measures, analyzes and interprets the reactions of people to products as perceived by the senses [1]
A fundamental pillar of international sensory testing practice is the application of Good Sensory Practices (GSP), which cover a number of elements: sensory testing environment, test protocol considerations, experimental design, panelist considerations, etc
The sensory analysis panel constitutes a true measuring instrument that utilizes human perceptions as instrumental measures to quantify the sensory parameters of products
Summary
Sensory evaluation is a science that measures, analyzes and interprets the reactions of people to products as perceived by the senses [1]. Expert sensory assessors are selected assessors with a demonstrated sensory sensitivity and with considerable training and experience in sensory testing, who are able to make consistent and repeatable sensory assessments of various products. Performance of these assessors should be monitored regularly to ensure that the criteria by which they were initially selected continue to be met [8,9]. Sci. 2021, 11, 11977 courses) and evaluated, the day before the evaluation takes place This way the panel manager will have an access to the trends, changes in the panel performance measures and will be able to provide individual help and support to the panelists. A complex and novel overview is provided, which might help the audience in selecting the protocol they apply during their studies
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