Study on the effect of activated carbon with bleaching earth on the reduction of polycyclic aromatic hydrocarbons (PAHs) in bleached soybean oil

N. Aliyar-Zanjani; Z. Piravi-Vanak; M. Ghavami

doi:10.3989/gya.0577181

Autores/as

N. Aliyar-Zanjani Food Science and Technology Department, College of Food Science and Technology, Science and Research Branch, Islamic Azad University https://orcid.org/0000-0002-3062-6739
Z. Piravi-Vanak Food Industries and Agriculture Research Center, Standard Research Institute https://orcid.org/0000-0002-0771-3041
M. Ghavami Food Science and Technology Department, College of Food Science and Technology, Science and Research Branch, Islamic Azad University https://orcid.org/0000-0003-1303-9062

DOI:

https://doi.org/10.3989/gya.0577181

Palabras clave:

Aceite de soja, Carbón activo, Cromatografía líquida de alta eficacia con detección de fluorescencia (HPLC-FL), Hidrocarburos aromáticos policíclicos (HAP), Tierra decolorante

Resumen

Considerando la importancia de decolorar la tierra con carbón activo para reducir los hidrocarburos aromáticos policíclicos (HAP) como un contaminante químico importante, este estudio se realizó para confirmar los efectos del proceso de decolorado sobre la reducción o eliminación del índice BαP y 4 HAP (BαA CHR, BβF, y BαP) en aceite de soja. El proceso de decolorado se realizó con diferentes cantidades de tierra decolorante (1% p/p) y carbón activo (0,1% hasta 0,5% p/p). Se empleó un HPLC/FLD para determinar los HAP en las muestras de aceite después de someterse a procedimientos de extracción y limpieza. Los resultados de linealidad indicaron que hubo una respuesta lineal con altos coeficientes de regresión lineal para los 4 HAP analizados. (R₂ > 0,9950). Además, el porcentaje de recuperación se calculó de 83,8% a 106,2%; LOD y LOQ fueron 0.06–0.2 μgkg⁻¹ y 0,2–0,61 μgkg⁻¹, respectivamente. El análisis de los contenidos de HAP indicó que el proceso de decoloración que incluían un porcentaje de carbón activo de 0.27% hasta 0.5% p/p llevó a la eliminación del contenido de HAP. Dado que se ha demostrado que los aceites vegetales son las principales fuentes de HAP en la dieta, el uso industrial de carbón activado durante la decoloración de los aceites vegetales es muy recomendable.

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Citas

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