Averaging time-intensity taste data by a parametric model

GARRIDO, D.; CALVIÑO, A.M; HOUGH, G.

FOOD QUALITY AND PREFERENCE

Elsevier Science Ltd.

Año: 2001 vol. 12 p. 1 - 8

0950-3293

Time±intensity (T±I) curves are often summarized by average curves. In this study, a di€erent method is proposed. A parametric model is derived in which intensity is described by a continuous function of time. Using this model, an average curve may be cal- culated by averaging the parameters derived from adjusting the individual T±I curves to the model. The parameters of the model are related to onset time of response, maximum intensity of the response, time at which the curve starts to decline from maximum intensity, rate of onset and rate of decay of the response. The method was veri®ed using experimental T±I curves obtained from measuring sweetness intensity of di€erent sucrose solutions.