| Peer-Reviewed

Optimizing Bio-ethanol Production from Striga hermonthica Using Yeast (Saccharomyces cerevisiae) as a Fermenting Agent

Received: 27 April 2021     Accepted: 24 June 2021     Published: 29 June 2021
Views:       Downloads:
Abstract

Global warming, urban pollution and depletion of fossil fuels have been driving for looking alternative energy sources, especially those derived from biomass. Production of bio-ethanol from lingocellulosic materials is providing a long-term sustainable for fuel supply. Striga hermonthica, a parasitic weed plant is one of cheap source of lignocellosic materials to serve as feedstock for bio-ethanol production. With the objective of evaluating its potential for bio-ethanol production, different concentrations (10g, 20g, 30g, and 40g) of Striga hermonthica treated with 1% diluted sulfuric acid and untreated were subjected to batch fermentation for 16 days with 0.5% and 1% yeast inoculums. Percent of bio-ethanol production, cell density and reducing sugars were measured at an interval of 4 days starting from the beginning. Results of these study showed that ethanol production was observed starting from the 4th day of fermentation, but its amount peaked 28.05% from 40g substrate with 1% inoculum on the 12th day of fermentation, and declined on 16th days (20.24%) from the same substrate concentration. Pretreated substrate showed significantly higher ethanol production than untreated. In agreement with ethanol production, cell density and reduction in reducing sugar were observed in the same pattern. Compared ethanol production between untreated substrates yield of 21.31%, and treated substrates yielded of 28.05%. Overall, this study showed that acid pre-treatment, inoculum concentration, fermentation period and substrate concentration affect the amount of bio-ethanol production. Finally, it can be concluded that the production of bioethanol from Striga hermonthica is economically and environmentally viable. Extensive use of this harmful weed for bioethanol production may have twofold advantages, viz. reduction of its negative impact on crop productivity and generation of bio-ethanol.

Published in American Journal of Bioscience and Bioengineering (Volume 9, Issue 3)
DOI 10.11648/j.bio.20210903.16
Page(s) 93-97
Creative Commons

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), 2021. Published by Science Publishing Group

Keywords

Bio-ethanol, Distillation, Fermentation, Pretreatment, Saccharomyces cerevisiae, Striga hermonthica

References
[1] Chisti, Y. 2007. Biodiesel from microalgae. Biotechnology advances, 25 (3): 294-306.
[2] Galbe, M. and Zacchi, G. 2002. Review of the Production of ethanol from softwood. Applied Microbiology and Biotechnology, 59 (6): 618.
[3] Gunasekaran, P., Chandra R. K. 1999. Ethanol fermentation technology Zymomonas mobilis. Current Science, 77 (1): 56-68.
[4] Gupta, Nirbhay, (2009). Hydrolysis of Lignocellulosic Materials for Ethanol Production, National Institute of Technology, Rourkela.
[5] Haramaya University. 2003. Sorghum Improvement Project Progress Report for 2002. Haramaya University Research Center.
[6] Hsieh. W. 2002. Engine Performance and Pollutant Emission Of and Si Engine Using Ethanol Gasoline Blended Fuels. Atmospheric Environment, 36: 403-41.
[7] Ministry of Finance and Economic Development (MoFED). 2010. Ethiopia Country Report on the Implementation of the Brussels Program of Action (BPOA). Addis Ababa.
[8] Parker, C. and Riches, C. R. 1993. Parasitic weeds of the world: biology and control. CAB International.
[9] Prasad, S., Singh, A. and Joshi, H. C. 2007. Ethanol as an alternative fuel from agricultural, industrial and urban residues. Resources, Conservation and Recycling, 50 (1): 1-39.
[10] Sadasivam, S and Manickam, A. 1996. Biochemical methods 2nd edition, New Age International Ltd. Publisher, New Delhi, 179-186.
[11] Saha. L. B, Iten. Ma. Cotta and Y. V. Wu. 2005. Dilute Acid and Enzymatic Pretreatment of Lignocellulosic residues, biodegradation and bioconversion by fungi. Biotechnology Advanced Journal, 27 (2): 185-194.
[12] Summer, J., Georgierva, B. and Ahring, K. 2004. Bioconversion of banana wastes to ethyl alcohol. Biochemistry Translation, 32-283.
[13] Yoswathana, N and Phuriphipat, P. 2010. Bioethanol Production from Rice Straw. Energy Research Journal, 1: 26-31.
[14] Zhang. D and Wu. J. C., (2012). Optimization of dilute acid-catalyzed hydrolysis of oil palm empty fruit bunch for high yield production of xylose. Chemical Engineering Journal, volume. 181-182, pp. 636–642.
[15] Zhang. P, Whistler. R. L, Be Miller. J. N, & Hamaker. B. R., (2005). Banana starch Production, physicochemical properties, and digestibility a review. 59: 443 -458.
Cite This Article
  • APA Style

    Temam Gemeda Genemo. (2021). Optimizing Bio-ethanol Production from Striga hermonthica Using Yeast (Saccharomyces cerevisiae) as a Fermenting Agent. American Journal of Bioscience and Bioengineering, 9(3), 93-97. https://doi.org/10.11648/j.bio.20210903.16

    Copy | Download

    ACS Style

    Temam Gemeda Genemo. Optimizing Bio-ethanol Production from Striga hermonthica Using Yeast (Saccharomyces cerevisiae) as a Fermenting Agent. Am. J. BioSci. Bioeng. 2021, 9(3), 93-97. doi: 10.11648/j.bio.20210903.16

    Copy | Download

    AMA Style

    Temam Gemeda Genemo. Optimizing Bio-ethanol Production from Striga hermonthica Using Yeast (Saccharomyces cerevisiae) as a Fermenting Agent. Am J BioSci Bioeng. 2021;9(3):93-97. doi: 10.11648/j.bio.20210903.16

    Copy | Download

  • @article{10.11648/j.bio.20210903.16,
      author = {Temam Gemeda Genemo},
      title = {Optimizing Bio-ethanol Production from Striga hermonthica Using Yeast (Saccharomyces cerevisiae) as a Fermenting Agent},
      journal = {American Journal of Bioscience and Bioengineering},
      volume = {9},
      number = {3},
      pages = {93-97},
      doi = {10.11648/j.bio.20210903.16},
      url = {https://doi.org/10.11648/j.bio.20210903.16},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.bio.20210903.16},
      abstract = {Global warming, urban pollution and depletion of fossil fuels have been driving for looking alternative energy sources, especially those derived from biomass. Production of bio-ethanol from lingocellulosic materials is providing a long-term sustainable for fuel supply. Striga hermonthica, a parasitic weed plant is one of cheap source of lignocellosic materials to serve as feedstock for bio-ethanol production. With the objective of evaluating its potential for bio-ethanol production, different concentrations (10g, 20g, 30g, and 40g) of Striga hermonthica treated with 1% diluted sulfuric acid and untreated were subjected to batch fermentation for 16 days with 0.5% and 1% yeast inoculums. Percent of bio-ethanol production, cell density and reducing sugars were measured at an interval of 4 days starting from the beginning. Results of these study showed that ethanol production was observed starting from the 4th day of fermentation, but its amount peaked 28.05% from 40g substrate with 1% inoculum on the 12th day of fermentation, and declined on 16th days (20.24%) from the same substrate concentration. Pretreated substrate showed significantly higher ethanol production than untreated. In agreement with ethanol production, cell density and reduction in reducing sugar were observed in the same pattern. Compared ethanol production between untreated substrates yield of 21.31%, and treated substrates yielded of 28.05%. Overall, this study showed that acid pre-treatment, inoculum concentration, fermentation period and substrate concentration affect the amount of bio-ethanol production. Finally, it can be concluded that the production of bioethanol from Striga hermonthica is economically and environmentally viable. Extensive use of this harmful weed for bioethanol production may have twofold advantages, viz. reduction of its negative impact on crop productivity and generation of bio-ethanol.},
     year = {2021}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Optimizing Bio-ethanol Production from Striga hermonthica Using Yeast (Saccharomyces cerevisiae) as a Fermenting Agent
    AU  - Temam Gemeda Genemo
    Y1  - 2021/06/29
    PY  - 2021
    N1  - https://doi.org/10.11648/j.bio.20210903.16
    DO  - 10.11648/j.bio.20210903.16
    T2  - American Journal of Bioscience and Bioengineering
    JF  - American Journal of Bioscience and Bioengineering
    JO  - American Journal of Bioscience and Bioengineering
    SP  - 93
    EP  - 97
    PB  - Science Publishing Group
    SN  - 2328-5893
    UR  - https://doi.org/10.11648/j.bio.20210903.16
    AB  - Global warming, urban pollution and depletion of fossil fuels have been driving for looking alternative energy sources, especially those derived from biomass. Production of bio-ethanol from lingocellulosic materials is providing a long-term sustainable for fuel supply. Striga hermonthica, a parasitic weed plant is one of cheap source of lignocellosic materials to serve as feedstock for bio-ethanol production. With the objective of evaluating its potential for bio-ethanol production, different concentrations (10g, 20g, 30g, and 40g) of Striga hermonthica treated with 1% diluted sulfuric acid and untreated were subjected to batch fermentation for 16 days with 0.5% and 1% yeast inoculums. Percent of bio-ethanol production, cell density and reducing sugars were measured at an interval of 4 days starting from the beginning. Results of these study showed that ethanol production was observed starting from the 4th day of fermentation, but its amount peaked 28.05% from 40g substrate with 1% inoculum on the 12th day of fermentation, and declined on 16th days (20.24%) from the same substrate concentration. Pretreated substrate showed significantly higher ethanol production than untreated. In agreement with ethanol production, cell density and reduction in reducing sugar were observed in the same pattern. Compared ethanol production between untreated substrates yield of 21.31%, and treated substrates yielded of 28.05%. Overall, this study showed that acid pre-treatment, inoculum concentration, fermentation period and substrate concentration affect the amount of bio-ethanol production. Finally, it can be concluded that the production of bioethanol from Striga hermonthica is economically and environmentally viable. Extensive use of this harmful weed for bioethanol production may have twofold advantages, viz. reduction of its negative impact on crop productivity and generation of bio-ethanol.
    VL  - 9
    IS  - 3
    ER  - 

    Copy | Download

Author Information
  • Department of Biotechnology, Wachemo University, Hossana, Ethiopia

  • Sections