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试点规模的高一致性机械提炼改善了红纤维素原料的酶性糖化
Liliane Pires Andrade1,2, Maria Isabel Rodrigues3, Mário Tyago Murakami4
1Brazilian Center for Research in Energy and Materials, Brazilian Biorenewables National Laboratory (LNBR), Campinas, SP, Brazil.
Scientific reports
|March 27, 2025
概括
机械提炼改善了用蒸汽爆炸 (SEPTB) 预处理的基纤维素生物质的酶去聚合,增加了8%的葡萄糖释放. 这种组合可以提高生物炼油厂的纤维可访问性.
科学领域:
- 生物质转换生物质转换
- 生物炼油技术 生物炼油技术
- 酶去聚合酶化 酶去聚合
背景情况:
- 基纤维素生物质的回收阻碍了生物炼油厂的高效转化.
- 开发具有成本效益的预处理和精炼方法对于生物燃料和生化生产至关重要.
研究的目的:
- 调查试点规模的高一致性机械提炼对林氏纤维素生物质酶去聚合物的影响.
- 评估机械提炼与低严重度水热 (HPTB) 和蒸汽爆炸 (SEPTB) 预处理的联合效应.
主要方法:
- 在用HPTB (180°C,15分钟) 和SEPTB (190°C,10分钟) 预处理的甘包油上使用试点规模的机械提炼.
- 评估了酶去聚合和糖化效率.评估了酶去聚合和糖化效率.
- 使用扫描电子显微镜 (SEM) 分析纤维形态.
主要成果:
- 根据预处理方法,机械提炼对纤维形态产生了明显的影响.
- 对于HPTB,没有发现炼制和糖化之间的相关性.
- SEPTB与机械提炼相结合,导致葡萄糖释放量增加8%.
- 在精炼后,SEM揭示了SEPTB材料中增强的纤维分层和多孔性.
结论:
- 将机械提炼与蒸汽爆炸预处理相结合,显著改善了基纤维素生物质的酶去聚合.
- 机械提炼通过改变纤维形态来提高酶的可访问性,特别是在SEPTB之后.
- 这些发现为优化生物炼油工艺和克服生物质回收压缩提供了宝贵的见解.
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