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不同的铁基催化剂激活的permonosulfate对林氏纤维素的预处理效应和机制的差异

Huiying Zeng¹, Qihang Li², Yao Long³

¹Frontiers Science Center for Animal Breeding and Sustainable Production, Wuhan 430070, China.

International journal of biological macromolecules

|May 6, 2025

概括

兰铁氧化物 (LaFeO3) 激活过氧化硫酸盐 (PMS) 的预处理显著提高了红纤维素的能量潜力. 这种先进的氧化过程提高了酶的糖化产量和糖的转化,用于生物质的利用.

科学领域:

生物质预处理生物质预处理
先进的氧化过程先进的氧化过程
催化剂是一种催化剂.

背景情况:

纤维素的预处理对于生物燃料生产至关重要,但仍然是一个瓶.
基于硫酸盐 (PMS) 的先进氧化工艺 (AOP) 提供了温和高效的预处理条件.
有效地激活PMS对于最大限度地减少硫酸盐消耗和最大限度地提高预处理效率至关重要.

研究的目的:

为了比较由不同的铁基催化剂激活的PMS的有效性,包括LaFeO3,用于甘包油的预处理.
评估LaFeO3激活的PMS对纤维素蛋白成分,酶糖化和糖转化的影响.
了解激素生成机制及其与预处理性能的相关性.

主要方法:

使用PMS被三个单金属铁催化剂和LaFeO3.3激活的甘包油的预处理.
评估酶式糖化产量和糖转化率.
分析化学成分的转化和基质物理化学性质的变化.

主要成果:

激活LaFeO3的PMS系统表现出卓越的性能,实现了87.73%的半纤维素去除和12.12%的纤维素去除.
这种系统的结果是高酶糖化率为76.39%,糖转化率为92.04%.
激活LaFeO3的PMS表现出一种独特的自由基生成模式,优化了木质素和半纤维素的去除,同时保留了纤维素.

结论:

拉菲奥3是一种高效的催化剂,用于激活PMS在林氏纤维素预处理.
开发的预处理方法显著提高了酶糖化效率和糖转化.
这种方法为优化能源应用中的生物质利用提供了一个有希望的策略.

关键词:

兰铁酸盐 (LaFeO(3)) 是一种酸盐.红细胞纤维素酸 (Lignocellulose) 是一种纤维素.单硫酸盐的使用方法

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