Published: Jan 1976
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The objective assessment of any sensory quality parameter must be based on its agreement with subjective “panel” evaluation. First, each sensory parameter must be accurately defined by a profile-type panel and results on a limited number of specimens correlated with several proposed objective tests. The selected procedure (r = 0.9<) is then correlated with difference-type panel scores on an adequate number of specimens (40+). The objective test should then be refined to improve precision and calibration. For scaling purposes, a consumer preference-type panel must be used, and the quality levels (grades) must be determined from the regression equations where panel scores are the dependent (y) variable and the objective test data are the independent (x) variable(s).
sensory mechanisms, correlation, regression analysis, subjective-objective tests
Professor, University of Maryland, College Park, Md.
Paper ID: STP30033S