Synergistic effect of pretreatment and hydrolysis enzymes on the production of fermentable sugars from date palm lignocellulosic waste

Published Date

25 March 2013, Vol.19(2):413–415, doi:10.1016/j.jiec.2012.09.022

Short communication

Title 

Synergistic effect of pretreatment and hydrolysis enzymes on the production of fermentable sugars from date palm lignocellulosic waste

• Author 

• Sulaiman Al-Zuhair ^,
• Khalda Ahmed
• Ashir Abdulrazak
• Muftah H. El-Naas

• Chemical and Petroleum Engineering Department, UAE University, 17555 Al-Ain, United Arab Emirates

Received 20 July 2012. Accepted 17 September 2012. Available online 12 October 2012.

Abstract

The sequential addition of the enzymes, laccase for lignin degrading, followed by xylanase for hemicelluloses hydrolysis, then cellulase for cellulose hydrolysis, was compared to the synergistic action of using the three enzymes together. It was shown that the reducing sugars yield increased from 5.6% using cellulase only to 45.6% by pretreatment with laccase and xylanase, prior to the enzymatic hydrolysis. A higher conversion of 60% was achieved by using the three enzymes together for the same incubation period. The proposed synergistic enzymes approach is a simpler and less energy intensive alternative compared to the conventional lignocelluloses pretreatment techniques.

Keywords

Enzymatic pretreatment

Lignocelluloses

Synergic effect

Reducing sugars

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Fig. 1.

• ⁎ 
  Corresponding author. Tel.: +971 37133636; fax: +971 37624262.

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