Segurança do café durante a interrupção do processo de secagem mecánica
Como Citar
Pabón, J., Osorio, V., & Gallego, C. P. (2023). Segurança do café durante a interrupção do processo de secagem mecánica. Cenicafé Journal, 74(2), e74205. https://doi.org/10.38141/10778/74205
No processamento do fruto do café, o teor de água é reduzido durante a etapa de secagem, afetando assim o crescimento de fungos toxigênicos. Para avaliar a segurança do café quando são feitas interrupções durante a secagem mecânica, foi aplicado um projeto fatorial 2x4+1, com dois tempos iniciais de secagem (6 e 12 horas), com quatro tempos de interrupção (12, 24, 36 e 48 horas) e um controle com secagem mecânica sem interrupção. Foram quantificadas as unidades formadoras de colônias (UFC) de fungos e leveduras, o teor de umidade e a atividade de água do café úmido antes e depois da interrupção e no final da secagem. A concentração de ocratoxina A e de compostos químicos foi determinada com a técnica NIRS nos grãos de café de cada tratamento. De acordo com a ANAVA, o teor de umidade do café com um tempo de secagem inicial de 12 horas foi significativamente menor do que o tempo de secagem de 6 horas, com valores de 42,29% e 47,49%, respectivamente. O teor de fungos e leveduras foi maior no café úmido submetido à interrupção (4,14x106 UFC/g) do que no café seco em pergaminho (8,19x103 UFC/g). Os valores de ocratoxina A não mostraram efeito do tratamento.
Biografia do autor (See)
Jenny Pabón, Centro Nacional de Investigaciones de Café
Asistente de Investigación. Disciplina de Calidad, Cenicafé
Valentina Osorio, Centro Nacional de Investigaciones de Café
Investigador Científico I. Disciplina de Calidad, Cenicafé
Claudia Patricia Gallego, Centro Nacional de Investigaciones de Café
Asistente de Investigación. Disciplina de Calidad, Cenicafé
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