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Updated: Oct 8, 2025
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Pretreatment of Lignocellulosic Biomass with Low-cost Ionic Liquids
Published on: August 10, 2016
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Ethanol Production from Oil Palm Trunk: A Combined Strategy Using an Effective Pretreatment and Simultaneous
Agustin Krisna Wardani1, Aji Sutrisno1, Titik Nur Faida1
1Department of Agricultural Product Technology, Universitas Brawijaya, Malang 65314, East Java, Indonesia.
International Journal of Microbiology
|January 3, 2022
Summary
Oil palm trunk pretreatment using alkaline peroxide and autoclave effectively removed lignin and released cellulose. This optimized process yielded significant ethanol production via simultaneous saccharification and cofermentation (SSCF).
Area of Science:
- Biomass Conversion
- Bioenergy Research
- Biochemical Engineering
Background:
- Oil palm trunk (OPT) is a rich lignocellulosic resource for bioethanol production.
- Effective pretreatment is crucial for breaking down biomass recalcitrance and releasing fermentable sugars.
- Various methods exist to enhance biomass digestibility for biofuel generation.
Purpose of the Study:
- To investigate the impact of different pretreatment methods on oil palm trunk structure.
- To evaluate ethanol production using simultaneous saccharification and cofermentation (SSCF) from pretreated OPT.
- To optimize SSCF conditions for maximum ethanol yield.
Main Methods:
- Comparison of alkali, microwave-alkali, and alkaline peroxide combined with autoclave pretreatments.
- Enzymatic hydrolysis of pretreated OPT to determine sugar release.
- Optimization of SSCF using response surface methodology with varying temperatures, fermentation times, and yeast ratios.
Main Results:
- Alkaline peroxide combined with autoclave pretreatment achieved 83.26% lignin removal and 80.74% cellulose release.
- Enzymatic hydrolysis yielded up to 93.22% fermentable sugars.
- Optimized SSCF produced 1.89% ethanol with 66.14% fermentation efficiency.
Conclusions:
- Alkaline peroxide combined with autoclave pretreatment is highly effective for OPT biomass.
- The SSCF process is a promising system for efficient bioethanol production from OPT.
- This approach offers potential for utilizing various lignocellulosic biomass sources.
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