Alkaline Pretreatment of Sweet Sorghum Bagasse for Bioethanol Production

DOI: https://doi.org/10.14710/ijred.5.2.113-118

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Article Info
Published: 15-07-2016
Section: Original Research Article
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Lignocellulosic material, which consist mainly of cellulose, hemicelluloses and lignin, are among the most promising renewable feedstocks for the production of energy and chemicals.   The bagasse residue of sweet sorghum can be utilized as raw material for alternative energy such as bioethanol.  Bioethanol production consists of pretreatment, saccharification, fermentation and purification process.  The pretreatment process was of great importance to ethanol yield.  In the present study, alkaline pretreatment was conducted using a steam explosion reactor at 1300C with concentrations of NaOH  6, and 10% (kg/L) for 10, and 30 min.  For ethanol production separated hydrolysis and fermentation (SHF) and simultaneous saccharification and fermentation (SSF) process were conducted with 30 FPU of Ctec2 and Htec2 enzyme and yeast of Saccharomyces cerevisiae.   The results showed that maximum cellulose conversion to total glucose plus xylose were showed greatest with NaOH 10% for 30 min.  The highest yield of ethanol is 96.26% and high concentration of ethanol 66.88 g/L were obtained at SSF condition during 48 h process. Using SSF process could increase yields and concentration of ethanol with less energy process.

 

Article History: Received January 16th 2016; Received in revised form May 25th 2016; Accepted June 28th 2016; Available online

How to Cite This Article: Sudiyani, Y., Triwahyuni, E., Muryanto, Burhani, D., Waluyo, J. Sulaswaty, A. and Abimanyu, H. (2016) Alkaline Pretreatment of Sweet Sorghum Bagasse for Bioethanol Production. Int. Journal of Renewable Energy Development, 5(2), 113-118.

http://dx.doi.org/10.14710/ijred.5.2.113-118

 

  1. Yanni Sudiyani 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
  2. Eka Triwahyuni 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
  3. Muryanto Muryanto 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
  4. Dian Burhani 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
  5. Joko Waluyo 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
  6. Anny Sulaswaty 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
  7. Haznan Abimanyu 
    Research Center for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan PUSPIPTEK Serepong, Tangerang Selatan 15314,, Indonesia
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