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通过拉曼成像在Miscanthus sinensis中可视化Hydroxycinnamates的区域选择性脱聚合 cv. 细胞壁的细胞壁

Zhi Jin¹, Weili Cui², Jianfeng Ma^3,4

¹Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China.

Journal of agricultural and food chemistry

|June 13, 2023

概括

在Miscanthus sinensis生物质中的素碳水化合物复合体 (LCC) 中的素胺酸 (HCM) 被可视化. 氧化处理有效地去聚合了HCMs,特别是在木质化区域,帮助生物质炼油厂.

科学领域:

生物质炼油厂是生物质炼油厂.
植物细胞壁超结构植物细胞壁超结构
生物聚合物的化学化学

背景情况:

素碳水化合物复合物 (LCC) 阻碍了高效的素纤维素生物质加工.
了解LCC组件的溶解对于生物质价值化至关重要.

研究的目的:

为了可视化NaOH处理过程中LCC中基胺酸盐 (HCMs) 的脱聚合.
为了研究HCM的空间分布和动力学和Miscanthus sinensis中的素溶解.

主要方法:

使用共聚焦拉曼显微镜来监测HCM溶解.
连续的NaOH (2.5%重/重) 处理应用于Miscanthus sinensis生物质.
拉曼光谱和成像分析量化了不同细胞壁区的脱聚合.

主要成果:

温和的NaOH处理在高度化的中间叶片区域 (>66.0%) 首选去聚合的HCMs.
在25分钟的时间内,红素脱聚合主要发生在体纤维和体二次壁中.
HCM脱聚合与中叶叶片区域的红素脱聚合有很强的相关性 (R2 > 0.96).

结论:

NaOH处理有效地通过向HCM和红素来分解LCC.
针对HCM和红素脱聚合是有效的草本生物质炼油厂的关键.
孔焦拉曼显微镜对生物质处理过程中的LCC结构变化提供了宝贵的见解.

关键词:

小型航空公司 (LCC)与焦点一致的拉曼显微光谱学脱聚合脱聚合的过程基酸盐和基酸盐的含量

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