Testes Tetraédrico vs. Triangular: Um estudo de caso com refrigerante tipo guaraná

Autores

DOI:

https://doi.org/10.33448/rsd-v9i4.3049

Palavras-chave:

Teste discriminativo; Teste Tetraédrico; Teste Triangular; Distância Thurstoniana.

Resumo

Testes sensoriais discriminativos tem como objetivo identificar se a diferença entre dois estímulos similares é percebida. Neste estudo nós comparamos a eficácia dos testes Triangular e Tetraédrico na detecção da diferença entre duas amostras de refrigerante do tipo guaraná, através do cálculo da proporção de discriminadores e distância thurstoniana. As amostras avaliadas foram produzidas por diferentes métodos de clarificação do xarope (carvão ativado e coluna de troca iônica). Em cada teste, participaram 99 provadores; o teste Triangular avaliou três amostras e o teste Tetraédrico avaliou quatro amostras, em blocos randomizados. Apenas o teste Tetraédrico foi capaz de detector diferença significativa entre as amostras (p<0,05), com uma pequena proporção de discriminadores e distância thurstoniana inferior ao limite de percepção, indicando que o teste Tetraédrico é mais poderoso e sensível que o teste Triangular.

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Publicado

20/03/2020

Como Citar

CHAVES, K. F.; WAHANIK, A. L.; PALUDO, M. C.; TOLEDO, B. I.; LEME, A. M. V.; ORELLI JUNIOR, A. A.; BEHRENS, J. H. Testes Tetraédrico vs. Triangular: Um estudo de caso com refrigerante tipo guaraná. Research, Society and Development, [S. l.], v. 9, n. 4, p. e166943049, 2020. DOI: 10.33448/rsd-v9i4.3049. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/3049. Acesso em: 3 jul. 2024.

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Seção

Ciências Agrárias e Biológicas