SciELO - Scientific Electronic Library Online

 
vol.85 número3Propiedades fisiquímicas, funcionales y estructurales de almidones nativos y acetilados obtenidos a partir de la papa(Solanum tuberosum) var. ‘única’Remoción de materia orgánica en reactor anaerobio de manto de lodos de flujo ascedente en el tratamiento de aguas resisduales del camal de Huancavelica índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • No hay articulos similaresSimilares en SciELO

Compartir


Revista de la Sociedad Química del Perú

versión impresa ISSN 1810-634X

Resumen

NAVEDA RENGIFO, Ricardo Aaron; JORGE MONTALVO, Paola Aurelia; FLORES DEL PINO, Lisveth  y  VISITACION FIGUEROA, Lizardo. Lignine remotion from rice husk preteatment by steam explosion. Rev. Soc. Quím. Perú [online]. 2019, vol.85, n.3, pp.352-361. ISSN 1810-634X.

The present study evaluated the removal of lignin from the rice husk, by means of steam explosion at different severity conditions. The process of lignin removal was evaluated as lignin Klason was performed in samples with pretreatment at pressures of 0.4; 0.6; 0.8 and 1.0 MPa, times of 6, 8, 10 and 12 minutes with a decompression of between 5 to 7 seconds; it is a lignin removal from 18.02 % up to 12.7 % at 1.0 MPa and 12 min compression, factor of 3.3 severity. The evaluation by FTIR of the husk without pretreatment, with pretreatment at 0.4 MPa and 12 min, 1.0 MPa and 12 min, shows a reduction in the transmission generated by the peaks corresponding to the presence of lignin -OH (2920 cm-1 ), CH and CO (1320 and 1360 cm-1), COC a (1060 cm-1) among others. The promover per screening electronic microscopy (SEM) showed the degree of introducción Sud cantidades of the surface of the rice associated with theollowing of the lignin explicar. The pretreatment of the steam explosion of the rice husk improves the potential of rice husk hydrolysis for the formation of reducing sugars that can be exploited in the production of G-2 ethanol, due to the removal of lignin and the exposure of cellulose and hemicellulose.

Palabras clave : steam explosion; rice husk; lignin klason; FTIR; SEM.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons