Peer-Reviewed Journal Details
Mandatory Fields
O'Sullivan M.G.;Martens H.;Boberg Baech S.;Kristensen L.;Martens M.
2002
November
Journal Of Food Quality
The reliability of na´ve assessors in sensory evaluation visualized by pragmatical multivariate analysis
Validated
Scopus: 5 ()
Optional Fields
25
5
395
408
The first part of this paper demonstrates a simple graphical way to visualize estimated variances, in terms of a plot of the total initial variance ("SIGNAL") versus residual variance ("NOISE"), as a pragmatic alternative to tables of F-tests. The recently developed Procrustes rotation in the bilinear "jack-knifing" form is then presented as a method for simplifying the comparison of PLS Regression models from different data sets. These methods are applied to sensory data in order to study if na´ve (untrained) sensory panelists can produce reliable descriptions of systematic differences between various test meals. The results confirm that three panels of 15 na´ve assessors each could give repeatable intersubjective description of the most dominant sensory variation dimensions.
0146-9428
10.1111/j.1745-4557.2002.tb01035.x
Grant Details