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Acid Hydrolysis Optimization of Prosopis Juliflora Stem for Bioethanol Production

Received: 20 May 2016     Accepted: 3 June 2016     Published: 6 August 2016
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Abstract

Ethanol producing from biomass has become an interesting substitute to petrolium in the struggle against raised levels of fossil carbon dioxide emission to the atmosphere. The biotechnological conversion of biomass into fuels requires hydrolysis of the polysaccharide fraction into monomeric sugars. This study was aimed at the optimization of the processing conditions of the hydrolysis step of bio-ethanol production to produce high fermentable sugar. In this study dilute acid hydrolysis, temprature and residunce time were used as process parameters. Response SurfaceMethodology (RSM) was employed for the optimization of hydrolysis conditions. A 3 (three) level design was used to develop a statistical model for the optimization of process variables. The raw material, P. juliflra stem, was collected from Afar region eastern part of Ethiopia specifically Wrer Agricultural Research Center. The optimal hydrolysis conditions that resulting for the maximum total reducing sugar concentration were at acid concentration; 2% (v/v), temperature; 128.01°C and hydrolysis time; 55 minutes. Under these conditions, the total reducing sugar concentration was obtained to be 184.716mg/g.

Published in Science Journal of Energy Engineering (Volume 4, Issue 1)
DOI 10.11648/j.sjee.20160401.11
Page(s) 1-11
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Ethanol, Prosopis Juliflora, Reducing Sugar, Hydrolysis

References
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    Biniyam Tefera Amdebrhan, Sisay Asfaw, Gizachew Assefa. (2016). Acid Hydrolysis Optimization of Prosopis Juliflora Stem for Bioethanol Production. Science Journal of Energy Engineering, 4(1), 1-11. https://doi.org/10.11648/j.sjee.20160401.11

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    Biniyam Tefera Amdebrhan; Sisay Asfaw; Gizachew Assefa. Acid Hydrolysis Optimization of Prosopis Juliflora Stem for Bioethanol Production. Sci. J. Energy Eng. 2016, 4(1), 1-11. doi: 10.11648/j.sjee.20160401.11

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    Biniyam Tefera Amdebrhan, Sisay Asfaw, Gizachew Assefa. Acid Hydrolysis Optimization of Prosopis Juliflora Stem for Bioethanol Production. Sci J Energy Eng. 2016;4(1):1-11. doi: 10.11648/j.sjee.20160401.11

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  • @article{10.11648/j.sjee.20160401.11,
      author = {Biniyam Tefera Amdebrhan and Sisay Asfaw and Gizachew Assefa},
      title = {Acid Hydrolysis Optimization of Prosopis Juliflora Stem for Bioethanol Production},
      journal = {Science Journal of Energy Engineering},
      volume = {4},
      number = {1},
      pages = {1-11},
      doi = {10.11648/j.sjee.20160401.11},
      url = {https://doi.org/10.11648/j.sjee.20160401.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20160401.11},
      abstract = {Ethanol producing from biomass has become an interesting substitute to petrolium in the struggle against raised levels of fossil carbon dioxide emission to the atmosphere. The biotechnological conversion of biomass into fuels requires hydrolysis of the polysaccharide fraction into monomeric sugars. This study was aimed at the optimization of the processing conditions of the hydrolysis step of bio-ethanol production to produce high fermentable sugar. In this study dilute acid hydrolysis, temprature and residunce time were used as process parameters. Response SurfaceMethodology (RSM) was employed for the optimization of hydrolysis conditions. A 3 (three) level design was used to develop a statistical model for the optimization of process variables. The raw material, P. juliflra stem, was collected from Afar region eastern part of Ethiopia specifically Wrer Agricultural Research Center. The optimal hydrolysis conditions that resulting for the maximum total reducing sugar concentration were at acid concentration; 2% (v/v), temperature; 128.01°C and hydrolysis time; 55 minutes. Under these conditions, the total reducing sugar concentration was obtained to be 184.716mg/g.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Acid Hydrolysis Optimization of Prosopis Juliflora Stem for Bioethanol Production
    AU  - Biniyam Tefera Amdebrhan
    AU  - Sisay Asfaw
    AU  - Gizachew Assefa
    Y1  - 2016/08/06
    PY  - 2016
    N1  - https://doi.org/10.11648/j.sjee.20160401.11
    DO  - 10.11648/j.sjee.20160401.11
    T2  - Science Journal of Energy Engineering
    JF  - Science Journal of Energy Engineering
    JO  - Science Journal of Energy Engineering
    SP  - 1
    EP  - 11
    PB  - Science Publishing Group
    SN  - 2376-8126
    UR  - https://doi.org/10.11648/j.sjee.20160401.11
    AB  - Ethanol producing from biomass has become an interesting substitute to petrolium in the struggle against raised levels of fossil carbon dioxide emission to the atmosphere. The biotechnological conversion of biomass into fuels requires hydrolysis of the polysaccharide fraction into monomeric sugars. This study was aimed at the optimization of the processing conditions of the hydrolysis step of bio-ethanol production to produce high fermentable sugar. In this study dilute acid hydrolysis, temprature and residunce time were used as process parameters. Response SurfaceMethodology (RSM) was employed for the optimization of hydrolysis conditions. A 3 (three) level design was used to develop a statistical model for the optimization of process variables. The raw material, P. juliflra stem, was collected from Afar region eastern part of Ethiopia specifically Wrer Agricultural Research Center. The optimal hydrolysis conditions that resulting for the maximum total reducing sugar concentration were at acid concentration; 2% (v/v), temperature; 128.01°C and hydrolysis time; 55 minutes. Under these conditions, the total reducing sugar concentration was obtained to be 184.716mg/g.
    VL  - 4
    IS  - 1
    ER  - 

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Author Information
  • Department of Chemical and Bioengineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia

  • Ethiopia Forestry Research Institute, Addis Ababa, Ethiopia

  • Department of Chemical and Bioengineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia

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