Evaluation of efficient glucose release using sodium hydroxide and phosphoric acid as pretreating agents from the biomass of Sesbania grandiflora (L.) Pers.: A fast growing tree legume.

Author(s) Mund, N.K.; Dash, D.; Barik, C.R.; Goud, V.V.; Sahoo, L.; Mishra, P.; Nayak, N.R.
Journal Bioresour Technol
Date Published 2017 Jul
Abstract

Sesbania grandiflora (L.) Pers. is one of the fast growing tree legumes having the efficiency to produce around 50tha(-1) above ground dry matters in a year. In this study, biomass of 2years old S. grandiflora was selected for the chemical composition, pretreatments and enzymatic hydrolysis studies. The stem biomass with a wood density of 3.89±0.01gmcm(-3) contains about 38% cellulose, 12% hemicellulose and 28% lignin. Enzymatic hydrolysis of pretreated biomass revealed that phosphoric acid (H3PO4) pretreated samples even at lower cellulase loadings [1 Filter Paper Units (FPU)], could efficiently convert about 86% glucose, while, even at higher cellulase loadings (60FPU) alkali pretreated biomass could convert only about 58% glucose. The effectiveness of phosphoric acid pretreatment was also supported by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Fourier transform infrared spectroscopy (FTIR) analysis.

DOI 10.1016/j.biortech.2017.03.177
Keywords Biomass; Cellulase; Cellulose; Fabaceae; Glucose; Hydrolysis; Lignin; Phosphoric Acids; Sesbania; Sodium Hydroxide; Spectroscopy, Fourier Transform Infrared
ISSN 1873-2976
Citation Mund NK, Dash D, Barik CR, Goud VV, Sahoo L, Mishra P, et al. Evaluation of efficient glucose release using sodium hydroxide and phosphoric acid as pretreating agents from the biomass of Sesbania grandiflora (L.) Pers.: A fast growing tree legume. Bioresour Technol. 2017;236:97-105.

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