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通过一步酸性单相氧乙醇分离法对纤维素的价值化

Yiqi Zhang^1,2, Yunxuan Wang³, Wuhuan Li^1,2

¹Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640, PR China.

|May 29, 2024

概括

本研究介绍了一种有效的生物质分成方法,使用酸化单相氧乙醇 (EPH). 这一过程允许在温和条件下对素,西兰和纤维素成分进行价值化.

科学领域:

生物质的价值化生物质的价值化
绿色化学绿色化学
生物精炼是生物精炼的一种方式.

背景情况:

红纤维素生物质是一种可持续的资源,但高效分离具有挑战性.
目前的方法通常需要严苛的条件,限制组件的价值化.
开发温和有效的预处理策略对于生物提炼至关重要.

研究的目的:

为了实现有效的细分基纤维素生物质.
在温和的条件下利用所有主要的生物质成分 (木质素,西兰,纤维素).
评估一种新型的加酸单相氧乙醇 (EPH) 预处理方法.

主要方法:

生物质预处理使用化单相氧乙醇 (EPH) 在110°C下60分钟.
隔离和表征素,西兰 (作为EPH-xyloside) 和富含碳水化合物的固体残留物.
脱乙后的碳水化合物残留物的酶性水解.
在像松木这样的反抗生物质上测试EPH.

主要成果:

从树生物质中去除92.6%的红素和80%的西兰.
在轻度处理后,碳水化合物残留的高酶消化率 (92.3%).
恢复高纯度,未缩的EPH改性红素 (EPHL).
氧化转化为EPH-氧化,一种潜在的生物医学前体.
在相同的温和条件下,松木的成功脱 (>70%).

结论:

酸性单相EPH预处理可以有效和温和地分离纤维素生物质.
这种方法可以将所有主要的生物质成分利用成有价值的产品.
EPH工艺显示出广泛的适用性,包括对强硬的木质生物质,突出其可持续生物提炼的潜力.

关键词:

这是一种EPH-xyloside.酶性水解是一种酶性水解.全组件利用率的使用率.纤维素素酸是什么纤维素酸是什么一个单相的氧乙醇分离法.

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