General Information
    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
    • Executive Editor: Mr. Ron C. Wu
    • Abstracting/ Indexing: Chemical Abstracts Services (CAS), Ulrich's Periodicals Directory, CABI, Electronic Journals Library, Google Scholar, ProQuest, and Crossref
    • E-mail:
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  • Oct 16, 2017 News! The papers published in Vol.8, No.4-5 have all received dois from Crossref.
Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan

IJCEA 2014 Vol.5(1): 23-25 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2014.V5.344

Statistical Optimization for Application of Nonionic Surfactants in Enzymatic Hydrolysis of Palm Fiber for Ethanol Production

Jatuporn Parnthong and Suratsawadee Kungsanant
Abstract—Palm fiber is a lignocellulosic material, which is available in large quantity from oil palm industry. Due to its cellulosic structure, it is considered as a highly potential alternative material for ethanol production. Thus, the palm fiber is utilized as a raw material in this study. The palm fiber is obtained from local industry and mechanically ground to reduce the size in the range of 0.417-1 mm. Then, it is pretreated with 10% sodium hydroxide. Then, it is further utilized in the enzymatic hydrolysis. The commercial cellulase enzyme (Trichoderma reesei) is employed in this study. The nonionic surfactant (Tween80) is applied to enhance the conversion of cellulose to sugar. In the experiment, the effects of enzyme loading, surfactant concentration, and hydrolysis time on sugar yield are investigated at 50 C and pH 5. By employing the response surface methodology, optimum sugar yield was obtained at as high as 67.65 % from palm fiber at 107 h hydrolysis time, 20 FPU/g substrate enzyme loading, and 7.39 g/L surfactant concentration.

Index Terms—Palm fiber, ethanol, enzymatic hydrolysis, nonionic surfactant, response surface method.

The authors are with the Department of Chemical Engineering Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand (e-mail:


Cite: Jatuporn Parnthong and Suratsawadee Kungsanant, "Statistical Optimization for Application of Nonionic Surfactants in Enzymatic Hydrolysis of Palm Fiber for Ethanol Production," International Journal of Chemical Engineering and Applications vol. 5, no. 1, pp. 23-25, 2014.

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