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通过NaOH-Autoclave预处理从扫草中提升糖和生物乙醇的生产
Duangporn Premjet1, Siripong Premjet2,3
1Department of Agricultural Science, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Phitsanulok 65000, Thailand.
Polymers
|February 13, 2025
概括
氧化 (NaOH) 自动预处理有效地增强了用于生产生物乙醇的扫草生物质. 这种优化的方法显著提高了酶的消化能力和发酵产量,支持可持续的能源发展.
科学领域:
- 生物质转换生物质转换
- 可持续能源 可持续能源
- 生物炼油工艺 生物炼油工艺
背景情况:
- 生物乙醇的非食品生物质利用对于可持续能源至关重要.
- 扫草 (Thysanolaena latifolia) 是一个研究不足的生物乙醇原料.
- 优化预处理是改善红纤维素生物质酶消化的关键.
研究的目的:
- 为了优化氧化 (NaOH) 车预处理扫草生物质.
- 评估NaOH度和温度对生物质特性和酶化水解的影响.
- 为了评估预处理的扫草的发酵性,用于生产生物乙醇.
主要方法:
- 系统评估NaOH度 (1-4%) 和温度 (110-130°C) 对于自封式扫草.
- 对生物质组成,结构变化 (SEM,XRD),酶解水解效率和葡萄糖回收的分析.
- 使用Saccharomyces cerevisiae TISTR 5339.39进行预处理生物质水解酸的发酵.
主要成果:
- 最佳预处理:在120°C时2%的NaOH,产生74.7%的红素去除和93.2%的葡萄糖回收.
- 显著改善了酶性水解 (88.0%的效率) 和葡萄糖回收 (33.3%).
- 实现了86.4%的乙醇转化率,每1000g生物质产生147g生物乙醇,增加了2.6倍.
结论:
- 纳氧化自闭柜预处理有效地提高了扫草的消化能力和生物乙醇产量.
- 优化的预处理改善了纤维素的结构,促进了酶性水解.
- 扫草是经济高效的生物乙醇生产的可行原料,促进了生物炼油应用.
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