Abstract
The objective of this study was to investigate how rapid descriptive consumer analysis using simultaneous presentation of samples compared with monadic presentation of samples, using both affective and descriptive sensory evaluation methods. Simultaneous presentation of coffee samples for sensory acceptance testing, using ranking analysis, was conducted using naïve assessors. In a separate session, assessors evaluated the same coffee samples, using monadic presentation and employing the same scales. Similarly, descriptive consumer analysis, using simultaneous and monadic sample presentation, was conducted using descriptive attributes chosen by the panel. For RDA (Ranking descriptive analysis), coffee samples were presented simultaneously (randomised) to assessors and subsequently ranked. The process was then repeated using the same assessors; however, samples were presented in monadic and randomised presentation order. Data accumulated from the study were analysed by Analysis of Variance (APLSR-ANOVA Partial Least Squares Regression). Results obtained indicate that simultaneous presentation of samples was more effective than monadic presentation, as a larger amount of attributes with significant (P
Highlights
RDA is a modification of flash profiling developed by Richter et al [1]
Data from coffee samples evaluated simultaneously using Ranking Acceptance Analysis (RAA) and RDA methodologies are presented using APLSR plots (Figure 1 and Figure 2) and the corresponding ANOVA values for regression coefficients from APLSR for hedonic and intensity coffee terms assessed are presented in Table 3 and Table 4
The results from this study demonstrated that the simultaneous presentation of samples were more effective than monadic presentation
Summary
For both methods, all samples are presented simultaneously so that they can be ranked, as opposed to the monadic presentation of traditional methods. They reported that RDA method produced results similar to the results obtained using QDA and FCP
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