Extração do Óleo da Polpa do Abacate com Metanol e Etanol a Diferentes Temperaturas
DOI:
https://doi.org/10.5902/2179460X12582Abstract
O objetivo do presente trabalho consistiu na extração do óleo da polpa do abacate de variedade Hass utilizando como solvente o etanol e o metanol. Os experimentos foram conduzidos a pressão atmosférica e no intervalo de temperatura entre 283,15 K e 313,15 K. As extrações foram realizadas por um período de 10 horas com amostragens a diferentes tempos de extração. Para ambos os solventes, a capacidade de extração apresentou resultados crescentes com o aumento da temperatura. O solvente etanol mostrou maior capacidade de solubilização do óleo da polpa do abacate. Os resultados experimentais foram correlacionados a um modelo que considera que o processo de extração ocorre por dois fenômenos; primeiro o óleo que está na superfície do sólido é rapidamente solubilizado pelo solvente e segundo o óleo residual é removido do interior do sólido por processo difusional.
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