Sensory acceptability and physical stability evaluation of a prebiotic soy-based dessert developed with passion fruit juice

  • Granato D
  • Masson M
  • Ribeiro J
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Abstract

The aim of this study was to use a factorial design approach for developing a palatable and stable soy-based dessert with the addition of Soy Protein (SP), oligofructose, and Passion Fruit Juice (PFJ). Panelists (n = 50) used a seven-point hedonic scale to assess the overall liking, degree of liking of creaminess, taste, and color of the desserts. In addition, the samples were submitted to a preference ranking test in order to evaluate the products' preference. Water Holding Capacity (WHC) and backscattering (BS) measures were also determined to assess the physical stability of the trials. Sample F3 (35% PFJ and 2% SP) was the only one that presented a WHC index of 94.8%; moreover, none of the developed samples had synerisis after 72 hours of storage indicating adequate physical stability of the emulsion process. Samples F2 (25% PFJ, and 3.0% SP), F4 (35% PFJ, and 3.0% SP), and F5 (30% PFJ, and 2.5% SP) presented mean hedonic scores above 'slightly liked' for all sensory attributes. The acceptance index of samples varied from 62.50 to 88% showing the great sensory potential of such products.Este trabalho objetivou desenvolver uma sobremesa com adição de Suco de Maracujá (SM), Proteína de Soja (PS) e oligofrutose que fosse estável e com sabor agradável, usando delineamento experimental. Provadores (n = 50) usaram uma escala hedônica de sete pontos para avaliar aceitação geral, cremosidade, sabor, e cor das amostras. Além disso, as sobremesas também foram avaliadas usando o teste de ordenação de preferência. Os índices de Capacidade de Retenção de Água (CRA) e sinérese (SN) foram determinados para avaliação da estabilidade física das amostras. A amostra F3 (35% SM e 2% PS) foi a única que apresentou índice de CRA de 94,8%; não obstante, nenhuma amostra teve sinérese após 72 horas de estocagem refrigerada, mostrando um comportamento estável das amostras. As sobremesas F2 (25% SM e 3,0% PS), F4 (35% SM e 3,0% PS), e F5 (30% SM e 2,5% PS) obtiveram escores hedônicos acima de 'gostei ligeiramente' para todos os atributos sensoriais. Os índices de aceitação variaram de 62,50 a 88%, mostrando grande potencial sensorial para tais produtos desenvolvidos.

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APA

Granato, D., Masson, M. L., & Ribeiro, J. C. B. (2012). Sensory acceptability and physical stability evaluation of a prebiotic soy-based dessert developed with passion fruit juice. Food Science and Technology, 32(1), 119–126. https://doi.org/10.1590/s0101-20612012005000004

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