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Updated: Jun 12, 2026
14:53
Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol
Published on: October 24, 2016
[Effect of temperature on the no cook, very high gravity ethanol fermentation process]
1Genencor (China) Bio-products Co., Ltd. Application and Technical Service Center, Asia Pacific Grain Processing Enzymes, Wuxi 214028, China.
Summary
Gradient temperature control significantly improves high gravity ethanol fermentation efficiency. This method, using a novel enzyme and sorghum, achieves 20% ethanol concentration in 90 hours.
Area of Science:
- Biotechnology
- Fermentation Science
- Biochemical Engineering
Context:
- Investigating high gravity ethanol fermentation processes.
- Exploring no-cook fermentation methods for efficiency.
- Optimizing fermentation conditions for industrial applications.
Purpose:
- To determine the effect of temperature on very high gravity ethanol fermentation.
- To enhance fermentation efficiency using a gradient temperature control strategy.
- To achieve high ethanol yields with readily available materials.
Summary:
- A novel raw starch hydrolyzing enzyme and gradient temperature control were employed.
- Sorghum was used as the raw material with a 35% dry substrate concentration.
- Commercially available dry yeast facilitated the process, reaching 20% (V/V) ethanol in 90 hours.
Impact:
- Demonstrates a significant improvement in fermentation efficiency.
- Provides a viable method for rapid, high-yield ethanol production.
- Highlights the potential for cost-effective bioethanol generation.
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