Metodologias dinâmicas de avaliação da perceção sensorial: comparação da aplicação do desvanecimento automático (fading) na metodologia Temporal-Check-All-That-Apply para a caracterização de queijo de São Jorge DOP

  • Buse Naz Gürbüz GreenUPorto - Centro de Investigação em Produção Agroalimentar Sustentável, DGAOT, Faculdade de Ciências, Universidade do Porto
  • Célia Rocha Sense Test Lda & GreenUPorto - Centro de Investigação em Produção Agroalimentar Sustentável, DGAOT, Faculdade de Ciências, Universidade do Porto
  • Luís Miguel Cunha Faculdade de Ciências da Universidade do Porto
Palavras-chave: Métodos sensoriais dinâmicos; TCATA; TCATA Fading; Queijo São Jorge DOP

Resumo

O Temporal-Check-All-That-Apply (TCATA) e Temporal-Check-All-That-Apply Fading (TCATA Fading) são dois métodos dinâmicos, o TCATA Fading emergiu do TCATA, apresentando o desvanecimento automático (fading) da seleção de atributos. Este estudo teve como principal objetivo a comparação entre os métodos de TCATA e TCATA Fading, com dois tempos de fading diferentes 4s e 8s, utilizando como matriz sensorial o queijo São Jorge DOP com tempos de cura de 4,7, e 12 meses, respetivamente. Três estudos foram realizados com os consumidores habituais de queijo São Jorge. Um painel de 60 consumidores avaliou as amostras de queijo de São Jorge através de 12 atributos durante 120 segundos por cada amostra. A comparação entre os métodos foi feita através dos resultados de perfil dinâmica das amostras. De acordo com as diferenças significativas, foi determinado que os estudos de TCATA Fading 4s foi avaliado com menos proporções de citações para todas as amostras. Nos estudos de TCATA e TCATA Fading 8s não há uma diferença na seleção dos atributos, mas TCATA Fading 8s é útil pois facilita o processo de seleção dos atributos. O estudo presente sugere que os métodos dinâmicos, nomeadamente TCATA e TCATA Fading podem fornecer boa qualidade de dados na discriminação entre os queijos de São Jorge com diferentes tempos de cura, bem como na criação do perfil dinâmico das amostras.

Biografia do Autor

Célia Rocha, Sense Test Lda & GreenUPorto - Centro de Investigação em Produção Agroalimentar Sustentável, DGAOT, Faculdade de Ciências, Universidade do Porto

Doutorada em Ciências do Consumo Alimentar e Nutrição (UPorto)

Responsável de I&D da empresa Sense Test, Lda

Professora Auxiliar convidada da FCUP

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Publicado
2021-11-11