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Alcohol production from pineapple waste.

L Ban-Koffi1, Y W Han

  • 1Ivorian Center of Technological Research, Ministry of Scientific Research, Abidjan, Ivory Coast.

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|January 17, 2014
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Summary
This summary is machine-generated.

Pineapple waste can be pretreated and fermented by Saccharomyces cerevisiae or Zymomonas mobilis to produce 8% ethanol. This process effectively converts agricultural waste into valuable alcohol fuel within 48 hours.

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Area of Science:

  • Biotechnology
  • Biochemical Engineering
  • Renewable Energy

Background:

  • Pineapple waste is an abundant agricultural byproduct with potential for bioconversion.
  • The low concentration of soluble sugars in pineapple waste necessitates pretreatment for efficient fermentation.
  • Saccharomyces cerevisiae and Zymomonas mobilis are key microorganisms for ethanol production.

Purpose of the Study:

  • To compare the alcohol production capabilities of Saccharomyces cerevisiae and Zymomonas mobilis using pineapple waste.
  • To investigate the effectiveness of enzymatic pretreatment on pineapple waste for enhanced fermentation.
  • To optimize ethanol yield from pineapple waste.

Main Methods:

  • Pineapple waste was pretreated using cellulase and hemi-cellulase enzymes.
  • Pretreated pineapple waste was fermented using Saccharomyces cerevisiae and Zymomonas mobilis.
  • Ethanol concentration was measured after 48 hours of fermentation.

Main Results:

  • Enzymatic pretreatment significantly improved the fermentability of pineapple waste.
  • Both Saccharomyces cerevisiae and Zymomonas mobilis successfully produced ethanol from the pretreated substrate.
  • Approximately 8% ethanol concentration was achieved within 48 hours of fermentation.

Conclusions:

  • Enzymatic pretreatment is crucial for unlocking the fermentable sugars in pineapple waste.
  • Saccharomyces cerevisiae and Zymomonas mobilis demonstrate potential for efficient ethanol production from pineapple waste.
  • Pineapple waste represents a viable lignocellulosic feedstock for sustainable bioethanol production.