Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/9705
Title: Perfil sensorial de iogurte light, sabor pêssego
Keywords: Iogurte light
Análise sensorial
Análise descritiva quantitativa
Teste de aceitação
Light yogurt
Sensory analysis
Quantitative descriptive analysis
Acceptance test
Issue Date: 6-Jul-2006
Publisher: Sociedade Brasileira de Ciência e Tecnologia de Alimentos
Citation: SANTANA, L. R. R. et al. Perfil sensorial de iogurte light, sabor pêssego. Ciência e Tecnologia de Alimentos, Campinas, v. 26, n. 3, p. 619-625, jul./set. 2006.
Abstract: The descriptive terminology and sensory profile of three samples of peach flavored light yogurt were determined using methodology based on the Quantitative Descriptive Analysis (QDA). A sensory panel consensually defined sensory descriptors, their respective reference materials and the descriptive evaluation ballot. Ten individuals were selected as judges and trained. They used the following as criteria: discriminant power, reproducibility and individual consensus. Twelve descriptors were devised showing similarities and differences among the light yogurt samples. Each descriptor was evaluated using a nine-centimeter non-structured scale with the intensity terms anchored at its ends. The data were analysed by ANOVA, the Tukey test and the Principal Component Analysis (PCA). The results showed a great difference in the sensory profile of light yogurts, where sample C showed more variation. The PCA showed sample A to be more distinguished by the sweetness, flavor of peach and firmness of fruit pieces. Sample B was characterized by the brightness, peach color and creamy aspect. Sample C had a higher intensity of sourness and astringency, a more farinaceous texture and more artificial aroma of peach. According to the acceptability test, all the products were accepted positively for all evaluated attributes. Sample C which contains soy protein in its formulation showed that this ingredient was not noticed by the judges and did not interfere in it being accepted.
URI: http://repositorio.ufla.br/jspui/handle/1/9705
Appears in Collections:DCA - Artigos publicados em periódicos

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