Comparison of Hydrolysis Conditions to Recover Reducing Sugar from Various Lignocellulosic Materials
Somkid Deejing, and Wuttichai Ketkorn* Author for corresponding; e-mail address: somkid_d@mju.ac.th
Volume: Vol.36 No.3 (SEPTEMBER 2009)
Research Article
DOI:
Received: 10 April 2008, Revised: -, Accepted: 1 Febuary 2009, Published: -
Citation: Deejing S. and Ketkorn W., Comparison of Hydrolysis Conditions to Recover Reducing Sugar from Various Lignocellulosic Materials, Chiang Mai Journal of Science, 2009; 36(3): 384-394.
Abstract
Lignocellulosic materials such as rice straw, corn hull, corn stover and vetiver grass leaves were pretreated with 2.0 M NaOH and hydrolyzed with 1.0, 5.0 and 10.0% (v/v) sulfuric acid at 100, 111 and 121oC for 15 and 30 min. Among the test conditions, the maximum reducing sugar concentration from various hydrolysis condition obtained by hydrolysis with 1.0% (v/v) sulfuric acid at 111oC for 30 min for all materials. In this study, vetiver grass leaves was selected. The optimal condition of pretreatment and hydrolysis of vetiver grass leaves were investigated. It was found that the pretreatment with 1.0 M NaOH and hydrolysis with 2.0% (v/v) sulfuric acid at 111oC for 30 min showed high reducing sugar concentration.