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关于由臭氧处理的制亚麻 (SFT) 产生的红素的结构变化和降解机制的研究

Lin Zhang¹, Jiajia Fu², Weidong Gao²

¹Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China; Department of Chemical Engineering and Waterloo Institute for Nanotechnology (WIN), University of Waterloo, QNC-5621, 200 University Ave West, Waterloo N2L 3G1, Ontario, Canada.

International journal of biological macromolecules

|December 26, 2024

概括

臭氧处理损坏了亚麻纤维中的木质素连接,将注射剂单位改变为瓜亚基单元. 这项研究阐明了在基纤维素的臭氧处理过程中脱的机制.

科学领域:

生物质加工生物质的加工.
红纤维素的化学成分
臭氧的应用臭氧的应用

背景情况:

臭氧是有效的lignocellulosic纤维脱皮由于其素的反应性.
在臭氧处理过程中,红素降解机制尚不清楚.
之前的研究重点是非纤维素去除和红素利用.

研究的目的:

为了研究在臭氧处理后,从Sutched Flax Tow (SFT) 中研磨木材细木素 (MWL) 的结构变化.
为了阐明臭氧脱皮过程中的素降解机制.

主要方法:

福里埃变换红外光谱学 (FTIR) 技术
紫外线光谱学 (UV) 超紫外线光谱学
凝透色谱 (GPC) 是一种透色谱.
基本面分析基本面分析
热重力测量分析 (TGA)
热解气色谱法-质谱法 (Py-GC/MS) 是一种方法.
核磁共振 (NMR) 光谱学核磁共振 (NMR) 光谱学

主要成果:

SFT MWL含有具有主导β-O-4'链接的西林基 (S) 和瓜亚基 (G) 单元.
臭氧处理损坏了β-O-4',β-β,主要是β-5链接.
在臭氧处理下,注射剂单位降解为瓜亚基单位.

结论:

臭氧处理显著改变了亚麻纤维中的红素结构.
该研究提供了详细的洞察力,对臭氧加工的脱机制.
了解素降解对于优化素纤维提取至关重要.

关键词:

纤维纤维是一种纤维纤维.研磨木质木质素 (MWL) 是一种木质物质.臭氧处理是一种臭氧处理.

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