Optimization of Sub-Critical Water Pretreatment for Enzymatic Hydrolysis of Sugarcane Bagasse ☆

Published Date
Energy Procedia
November 2015, Vol.79:937–942, doi:10.1016/j.egypro.2015.11.590

2015 International Conference on Alternative Energy in Developing Countries and Emerging Economies
Open Access, Creative Commons license

• Author 

•  Manorach ^a
 
• Aphisit Poonsrisawat ^b
 
• Nawin Viriya-empikul ^c,,
 
• Navadol Laosiripojana ^a

• aThe Joint Graduate School of Energy and Environment (JGSEE),King Mongkut's University of Technology Thonburi, Bangkok, Thailand
• bNational Center for Genetic Engineering and Biotechnology (BIOTEC),National Science and Technology Development Agency, Pathum Thani, Thailand
• cNational Nanotechnology Center (NANOTEC),National Science and Technology Development Agency, Pathum Thani, Thailand

Available online 3 December 2015.

Abstract

This work aimed to study and identify the optimum sub-critical water pretreatment conditions of sugarcane bagasse to increase the enzymatic digestibility of the cellulose fraction for subsequent bioethanol production. Sugarcane bagasse was pretreated with sub-critical water under several operating conditions; reaction temperature (126.36 °C to 193.64 °C), reaction time (3.18 min to 36.82 min), and bagasse/water ratio (1/4.64 to 1/11.36) in 600 mL autoclave reactor. These operating conditions were optimized by using central composite design (CCD) and response surface methodology (RSM). From the study, it was found that the optimum pretreatment condition for producing sugars was 169.66 ^°C, 19.41 min, and 1/6.85 bagasse to water ratio.

Keywords

Sugarcane bagasse

Sub-critical water 

Enzymatic hydrolysis

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• ☆
  Peer-review under responsibility of the Organizing Committee of 2015 AEDCEE.

• ⁎ 
  Corresponding author. Tel.: +66 211 76570.

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http://www.sciencedirect.com/science/article/pii/S187661021502322X