Obtención y characterización de organogeles producidos con cera de caña de azúcar y sus fracciones solubles en etanol caliente

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i6.3471

Palabras clave:

Organogeles; cera de caña de azúcar; morfología cristalina; reología; dureza

Resumen

Se fraccionó la cera de caña de azúcar (SCW) usando etanol caliente y un sistema de lavado simple, las fracciones obtenidas solubles (SSCW) e insolubles (ISCW) se usaron para producir organogeles cristalizados a dos temperaturas diferentes (5 y 25°C) a las concentraciones de 1 , 2, 3 y 4% (p/p). Se evaluó la estabilidad de todas las muestras de organogel en una camara a temperatura controlada (a 5, 25 y 35°C), y el comportamiento térmico para SCW, SSCW e ISCW fue diferente. La variación de entalpía cambió de 118.87 a 129.63 y 85.65 J / g para las fracciones. Los organogeles obtenidos de estos materiales fueron algo similares durante la cristalización (TPeak de 42.83, 37.19 y 36.23°C respectivamente), la cristalización y la variación de la entalpía de fusión presentaron histéresis como se observó para otros organogeles de ceras. Los organogeles SSCW fueron significativamente más duros que los obtenidos con SCW e ISCW. Las micrografías de los organogeles mostraron una red más organizada presente en el organogel SSCW en comparación con SCW que estaba más organizada que los organogeles ISCW. La diferencia en la microestructura observada explica la diferencia en el comportamiento mecánico de los organogeles formados con cera de caña de azúcar fracciones solubles e insolubles en etanol calientes.

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Publicado

11/04/2020

Cómo citar

ROCHA, J. C. B.; BARRERA-ARELLANO, D. Obtención y characterización de organogeles producidos con cera de caña de azúcar y sus fracciones solubles en etanol caliente. Research, Society and Development, [S. l.], v. 9, n. 6, p. e46963471, 2020. DOI: 10.33448/rsd-v9i6.3471. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/3471. Acesso em: 23 nov. 2024.

Número

Sección

Ciencias Agrarias y Biológicas