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深度环氧溶剂激活的纤维素生物质价值化:了解生物质预处理,纤维素溶解和纤维素的抗氧化活性

Yue Zhang¹, Shibo Liu¹, Deling Xu¹

¹State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring Road, Chao Yang District, Beijing 100029, China.

International journal of biological macromolecules

|January 29, 2025

概括

这项研究探讨了生物质预处理的深度环氧化溶剂 (DES),发现添加水或乙烯基醇 (EG) 到胆和酸 (1ChCl3AC) 并没有阻碍脱或糖化,产生有价值的素抗氧化剂.

科学领域:

生物质预处理生物质预处理.
绿色化学是一种绿色化学.
的价值化的价值化

背景情况:

深度环氧溶剂 (DES) 为生物质加工提供了可持续的替代方案.
胆化物和酸 (1ChCl3AC) 是生物质预处理的一个有前途的DES.
了解水和乙烯糖醇 (EG) 等辅溶剂的作用对于优化基于DES的预处理至关重要.

研究的目的:

研究水和EG对基于1ChCl3AC的生物质预处理的影响.
在预处理过程中分析生物质和红素的结构变化.
为了评估提取的素分数的抗氧化特性.

主要方法:

预处理各种生物质类型 (小麦,,白,茎),使用1ChCl3AC,在130°C下6小时内含有不同含量的水/EG.
使用X射线衍射 (XRD) 和小角度中子散射 (SANS) 进行生物质纳米孔结构,表面粗性和结晶性的表征.
使用有机溶剂提取和分离红素,然后对抗氧化活性进行评估.

主要成果:

将水或EG纳入1ChCl3AC系统并没有对脱或糖化产量产生负面影响.
SANS发现,红素形成了各种各样的纳米结构,受结,π-π和与1ChCl3AC和水的疏水相互作用的影响.
分裂性氨酸表现出不同的抗氧化活性,在二元氨酸组合中观察到不同的相互作用.

结论:

水和EG可以有效地用作1ChCl3AC基生物质预处理中的辅溶剂,而不会影响关键性能指标.
素,1ChCl3AC和水之间的相互作用在预处理过程中决定了素纳米结构的形成.
这项研究有助于理解DES-生物质-素相互作用,并突出了素转化为抗氧化剂的潜力.

关键词:

具有抗氧化活性的抗氧化剂.在 DES 预处理.乙烯基醇是一种乙烯基醇.莱格宁溶解过程中的溶解微角中子散射是一种小角度的中子散射.

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