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RESEARCH PAPERS

SOLUBILIZATION OF LIGNIN COMPONENTS OF FOOD CONCERN FROM SUGARCANE BAGASSE BY ALKALINE HYDROLYSIS
DISOLUCIÓN DE COMPONENTES LIGNÍNICOS DE INTERÉS ALIMENTARIO A PARTIR DE BAGAZO DE CAÑA DE AZÚCAR POR HIDRÓLISIS ALCALINA

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Pages 271-277 | Received 01 Dec 2006, Accepted 25 Jan 2007, Published online: 02 Oct 2009
 

Abstract

Resumen

Solubilization of sugarcane bagasse was performed in autoclave by alkaline treatment at 121°C for one hour to follow the release of its main components. The major products extracted were p-coumaric acid, vanillin, ferulic acid, and syringic acid, whose concentrations increased significantly with increasing the concentration of the NaOH solution up to 2.0 M or decreasing the liquid/solid ratio of the raw material to be treated to 50 g/g, respectively. These aromatic compounds could be usefully exploited in food industry because of their antioxidant power; however, a lot of experimental work is needed to optimize this process.

Ha sido efectuada la disolución del bagazo de caña de azúcar por tratamiento alcalino en autoclave a 121°C durante una hora para estudiar la extracción de sus componentes principales. Los principales productos extraídos fueron el ácido p-cumárico, la vainillina, el ácido ferúlico y el ácido siríngico, cuyos niveles se incrementaron significativamente con un aumento de la concentración de la disolución de NaOH hasta 2.0 M o con la disminución de la relación líquido/sólido de la materia prima hasta 50 g/g, respectivamente. Los compuestos aromáticos podrían ser empleados en la industria alimentaria debido a su poder antioxidante; aunque es necesaria una gran cuantidad de trabajo experimental para la optimización de este proceso.

Palabras clave: Hidrólisis alcalina, lignina, ácido ferúlico, ácido p-cumárico, bagazo de caña de azúcar

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