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用酸降解纤维素酸的动力学:在正常温度下对高固体酸预处理的动力学见解

Qianqian Yang¹, Rui Zhai¹, Yihang Tian¹

¹School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China; Biorefinery Research Institution, Nanjing University of Science and Technology, Nanjing 210094, PR China.

Bioresource technology

|May 26, 2025

概括

一种新的高固体,正常温度酸 (HSNTA) 预处理提高了玉米的消化能力和糖回收 (90.9%). 这种方法最大限度地减少了抑制剂的形成,这对于高效的生物燃料生产至关重要.

科学领域:

生物质预处理生物质预处理
生物化学工程生物化学工程
可再生能源可再生能源是可再生能源.

背景情况:

传统的高温酸预处理会产生抑制剂,降低生物质的消化能力.
优化预处理条件对于最大限度地提高基纤维素生物质糖产量至关重要.

研究的目的:

开发和评估玉米炉的高固体,正常温度酸 (HSNTA) 预处理.
为了提高酶的消化能力,并尽量减少在预处理期间的抑制剂形成.
在HSNTA条件下了解纤维素,西兰和素的降解动力学.

主要方法:

玉米炉使用HSNTA在50°C进行了14天的预处理,固体负荷高 (56.5%w/w).
进行了酶性水解以确定葡萄糖和西兰的转化.
动力学分析被用来研究生物质成分的降解行为.

主要成果:

在HSNTA预处理过程中,总糖回收率达到90.9%.
酶性水解产生了高水平的葡萄糖 (89.5%) 和西兰 (81.2%) 转化.
纤维素水解产生了葡萄糖寡合体;西兰显示双相降解;木质素降解是选择性的.

结论:

HSNTA预处理有效地提高了玉米的消化能力和糖产量,同时最大限度地降低了抑制剂.
高固体条件影响纤维素水解路径和西兰降解动力学.
动力建模为在新的预处理条件下生物质成分降解提供了洞察力.

关键词:

酸性预处理酸性预处理一个玉米炉.降解降解是一种降解.动态分析动态分析

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