High-solid pretreatment of corn stover using urea for enzymatic saccharification
Lili Wang1, Ke Zhang2, Youjie Xu2
1College of Engineering, Northeast Agricultural University, Harbin 150030, PR China; Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA.
Bioresource Technology
|March 15, 2018
Summary
This study optimized urea pretreatment for corn stover, enhancing enzymatic saccharification. Optimal conditions yielded high glucose and xylose recovery from lignocellulosic biomass.
Area of Science:
- Biomass Pretreatment
- Biochemical Engineering
- Renewable Energy
Background:
- Corn stover is a plentiful lignocellulosic biomass resource.
- Efficient conversion of corn stover into sugars is crucial for biofuel production.
- Current pretreatment methods face challenges in scalability and efficiency.
Purpose of the Study:
- To investigate high-solid pretreatment of corn stover using urea.
- To optimize pretreatment parameters for enhanced enzymatic saccharification.
- To maximize glucose and xylose yields from treated corn stover.
Main Methods:
- Investigated effects of solid loading, temperature, time, and urea/soybean flour ratios.
- Utilized urea as a pretreatment agent for corn stover.
- Assessed enzymatic saccharification efficiency for glucose and xylose recovery.
Main Results:
- Urea pretreatment significantly improved enzymatic saccharification.
- Optimal conditions identified: 80°C, 10 days, 1:1 urea:corn stover ratio, 50% solid loading.
- Preserved 97.24% glucan and 61.63% xylan; achieved 84.11% glucose and 78.54% xylose recovery.
Conclusions:
- High-solid urea pretreatment is effective for corn stover biomass conversion.
- Optimized conditions enhance glucose and xylose yields for biofuel applications.
- This method offers a promising route for lignocellulosic biomass valorization.
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