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Comparison of Quantitative Descriptive Analysis to the Napping methodology with and without product training
journal contribution
posted on 2018-06-01, 00:00 authored by Penelope Oliver, Sara Cicerale, E Pang, Russell KeastRussell KeastNapping has recently been gaining popularity as a rapid descriptive profiling method, primarily for the reduction in cost and time when compared with traditional descriptive analysis. Questions remain regarding the accuracy of data from untrained consumers and how this differs from a trained panel. The aim of this research is to compare results obtained from a Quantitative Descriptive Analysis (QDA) strawberry-trained panel with untrained consumers applying Napping combined with ultra-flash profile (UFP). Six strawberry samples (three duplicate cultivars) were assessed. Untrained consumers (n = 131) used Napping to separate strawberries based on their similarities and differences. Trained panelists (n = 12, minimum 60 hr training), applied QDA and Napping on two separate occasions. Results revealed Napping with UFP to produce product configurations comparable to QDA (RV coefficients of 0.936 and 0.898 between QDA and Napping via a trained panel, and a consumer panel, respectively), with similar descriptive terms to describe products. With a reduction in the number of consumers applying Napping with UFP, however, the similarity between methodologies declined. Furthermore, a lack of common understanding of attribute definitions limited its application. Therefore, Napping with UFP applied by a larger pool of assessors has been deemed an appropriate alternative to QDA when time is limited. Practical application: The comparison of the Napping with ultra-flash profile (UFP) methodology to traditional descriptive analysis will provide insight into consumer perception, and how this differs from an expertly trained panel. Upon evaluating this technique, Napping with UFP using untrained consumers may prove to be a valid instrument in objectively profiling the flavor of non-homogenous agricultural products, potentially proving a viable alternative to the traditional QDA methods in future research of these products.
History
Journal
Journal of sensory studiesVolume
33Issue
3Article number
e12331Pagination
1 - 11Publisher
John Wiley & SonsLocation
Chichester, Eng.Publisher DOI
ISSN
0887-8250eISSN
1745-459XLanguage
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2018, Wiley Periodicals, Inc.Usage metrics
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