Utilization of Oil Palm Empty Fruit Bunch Hydrolysate for Ethanol Production by Baker's Yeast and Loog-Pang

Published Date
November 2015, Vol.79:157–162, doi:10.1016/j.egypro.2015.11.455

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

Author 

• Sairudee Duangwang
 
• Chayanoot Sangwichien ^,

• Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Hat Yai, Songkhla 90110, Thailand

Available online 3 December 2015.

Abstract

Oil palm empty fruit bunch is a potential source of glucose which can serve as a promising raw material for production of ethanol. Ethanol production was investigated by using separation hydrolysis and fermentation process (SHF), in which yeast from loog-pang (a Thai traditional fermentation starter culture) and baker's yeast were used as biocatalyst. After alkali pretreatment with 15% w/v NaOH for 40 min at 130 °C, Cellulose was analyzed to be 61.94% (on dry weight basis). Glucose was 33.45 g/L after cellulose was hydrolyzed by 7% v/v H₂SO₄ at 119 °C for 110 min. The resulting aqueous phase rich in glucose was fermented by yeast from baker's yeast to produce ethanol with the concentration of 8.49 g/L with is 56 times higher than loog-pang as yeast. Therefore, implementation of oil palm empty fruit bunch for the development of alternative source of energy could be an effective approach and key enable to the billion-ton biofuel vision.

Keywords

Oil palm empty fruit bunch

loog-pang

baker's yeast

ethanol 

separation hydrolysis and fermentation

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

• ⁎ 
  Corresponding author. Tel.: +6-681-698-9088; fax: +6-674-558-833.

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