"Sodium hydroxide pretreatment and enzymatic hydrolysis of coastal Berm" by Ziyu Wang, Deepak R. Keshwani et al.

Biological Systems Engineering, Department of

 

Document Type

Article

Date of this Version

2010

Comments

Published in Bioresource Technology (2010); doi: 10.1016/j.biortech.2009.12.097 Copyright © 2009 Elsevier Ltd. Used by permission. http://www.elsevier.com/locate/biortech

Abstract

Coastal Bermuda grass was pretreated with NaOH at concentrations from 0.5% to 3% (w/v) for a residence time from 15 to 90 min at 121 °C. The pretreatments were evaluated based on total lignin removal and production of total reducing sugars, glucose and xylose from enzymatic hydrolysis of the pretreated biomass. Up to 86% lignin removal was observed. The optimal NaOH pretreatment conditions at 121 °C for total reducing sugars production as well as glucose and xylose yields are 15 min and 0.75% NaOH. Under these optimal pretreatment conditions, total reducing sugars yield was about 71% of the theoretical maximum, and the overall conversion efficiencies for glucan and xylan were 90.43% and 65.11%, respectively.

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