Efecto del tratamiento previo de ácido diluido - peróxido en la hierba napier (Pennisetum purpureum schumach) para mejorar la reducción Producción de azúcar por hidrólisis enzimática
DOI:
https://doi.org/10.18041/1794-4953/avances.2.226Palabras clave:
Ácido diluido, Hidrólisis, azúcares reductores, napier Hierba, Pennisetum purpureum, PeróxidoResumen
El pasto napier (Pennisetum purpureum Schumach.)Es una biomasa potencial para la conversión aEtanol, bioenergía o productos de alto valor añadido.Variación en los parámetros de prehidrólisis (tiempo, ácidoFuerza,% de la biomasa, tamaño de partícula) y enzimáticosLas condiciones de sacarificación fueron examinadas para su conversiónDe hierba napier en azúcares fermentables.Un pretratamiento del sustrato insoluble en agua(WISH2SO _ {4}) En 15,1% de la producción de azúcar reductor(RSY) se realizó con peróxido (H202) A 122 ° C.La relación entre RSY y el proceso ácidoLos parámetros se describen mediante un modelo matemáticoDerivados de los datos experimentales. El peróxidoPretratamiento a 0,7% (p / p), partícula de 4,75 mmConcentración de biomasa del 8% (p / v),La producción RSY de la hidrólisis enzimáticaEn 97,6% después de 75 min. La hidrólisis enzimáticaProdujo 287,81 mg / (g de muestra seca inicial) deGlucosa y 245,81 mg / (g de muestra seca inicial) deXilosa. Por lo tanto, se concluyó que la combinaciónEl pretratamiento con ácido peróxido es unMétodo ecológico para la enzimaHidrólisis de la hierba napier.
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