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核性添加剂对酸预处理林氏纤维素的作用
1College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, People's Republic of China.
Biotechnology progress
|March 25, 2025
概括
在酸预处理中添加酸等核性添加剂显著提高了树生物质中的酶性水解产量. 这种方法提高了纤维素的可访问性,并抑制了红素凝结,改善了生物燃料的生产.
科学领域:
- 生物质预处理 生物质预处理
- 生物化学工程 生物化学工程
- 可再生能源可再生能源是可再生能源.
背景情况:
- 在生物质预处理期间的质凝结会产生刚性网络,阻碍酶解水解和纤维素的可访问性.
- 有效的预处理对于有效地将纤维素生物质转化为生物燃料和生物化学品至关重要.
- 核性添加剂提供了一种潜在的策略,以减轻红素凝结.
研究的目的:
- 为了研究核性添加剂 (酸,2-纳,3-基-2-纳酸,2-纳-7-酸盐) 在木酸预处理过程中抑制红素凝结的有效性.
- 评估这些添加剂对酶化水解产量和纤维素可获得性的影响.
主要方法:
- 使用酸预处理木生物质,并未添加四种核性剂.
- 量化了利格宁和西兰的去除.
- 确定了酶性水解产量,并分析了预水解物中的含量.
主要成果:
- 酸预处理有效地去除了西兰 (100%) 和红素 (18.06%-31.35%).
- 与酸单独 (66.15%) 相比,核性添加剂显著提高了酶性水解产量 (71.41%-100%).
- 添加剂3 - 基 - 2 - 纳酸和2 - 纳 - 7 - 硫酸盐,具有水友性群体,改善了素分离.
结论:
- 核性添加剂在木的酸预处理过程中有效地抑制了素凝结.
- 提高纤维素的可访问性和较高的纤维素II比例有助于改善酶性水解.
- 这一战略有望优化用于生物燃料生产的纤维素生物质转化.
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