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蜂酶友好的双功能深层溶剂,用于增强溶解纸的反应性,以产生纤维素酸盐

Hui Zhao¹, Zijun Gao¹, Meixin Wang¹

¹State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.

Bioresource technology

|August 22, 2025

概括

一种新型深溶解剂 (DES) 辅助的酶过程增强了纤维素酸盐生产的溶解纸反应性. 这种绿色方法提高了纸质量和酸膜的性能,提供了高效的工业解决方案.

科学领域:

材料科学
生物技术
化学工程

背景情况:

高质量的溶性纸对于纤维素酸盐 (CA) 的生产至关重要.
传统溶解纸的稳定性限制了化学透和加工效率.
开发增强的纸反应性对于先进的AC制造至关重要.

研究的目的:

开发一种新的方法来提高溶解纸的反应性,使用深度溶解剂 (DES) 辅助的酶过程.
研究基于酸盐的DES辅助内葡萄糖酶丰富细胞酶 (ZAC-EG) 处理对纸性质的有效性.
评估改性纸是否适合生产高性能乙级溶解纸和纤维素乙薄膜.

主要方法:

开发了一种新型的深溶性溶剂 (DES) 辅助内葡萄糖酶丰富细胞酶 (EG) 工艺.
基于酸的DES被用于破坏纤维素的键,促进纤维的胀,并保护酶活性.
分析了纸的结构性质 (聚合度,结晶度,结晶体大小) 和乙化值.
准备了纤维素 (CA) 薄膜,并对光透度和拉伸强度进行了表征.

主要成果:

ZAC-EG处理显著降低了纸的聚合度 (1227到958) 和结晶度,同时增加了结晶体大小.
乙化值从331增加到1148,符合乙级溶解纸标准.
与商业标准相比,来自ZAC-EG纸的CA薄膜具有更高的光透度 (98.6%) 和拉伸强度 (62.2 MPa).
作为一种溶剂和酶稳定剂,DES提高了整个过程的效率.

结论:

开发的DES辅助EG工艺是一种绿色和有效的生产高反应性乙级溶解纸的方法.
这种方法克服了传统纸加工的局限性,使得酸纤维素的产量更高.
提高了纸质量,最终的纤维素酸产品的性能也得到了改善.

关键词:

细胞质溶解纸高光透射率乙化增加基于酸的DES

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