Cooking with active oxygen and solid alkali facilitates lignin degradation in bamboo pretreatment†,Sustainable Energy & Fuels

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Cooking with active oxygen and solid alkali facilitates lignin degradation in bamboo pretreatment†
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2018-07-19 00:00:00 , DOI: 10.1039/c8se00181b
Ning Ding _{1,

2,

3,

4} , Xiaoqiang Song _{1,

2,

3,

4} , Yetao Jiang _{1,

2,

3,

4} , Bin Luo _{1,

2,

3,

4} , Xianhai Zeng _{1,

2,

3,

4,

5} , Yong Sun _{1,

2,

3,

4,

5} , Xing Tang _{1,

2,

3,

4,

5} , Tingzhou Lei _{4,

6,

7} , Lu Lin _{1,

2,

3,

4,

5}

Affiliation

Cooking with active oxygen and solid alkali (CAOSA), developed by our group, is a promising alternative to both clean pulping and biomass pretreatment since it is a facile technique with advantages of environmental benignity and easy alkali recovery. Through comparative analysis using 2D-HSQC NMR, the superior delignification efficiency of the CAOSA process could be attributed to the more efficient cleavage of the benzene ring in lignin, which is in sharp contrast to the conventional pulping route. Abundant organic acids were detected in the product solution, which is also known as yellow liquor (YL). In addition, acid insoluble degradation products (AIDPs) containing aromatic compounds were present in the YL, which were separated and collected. The low AIDP content in the YL suggested the highly efficient decomposition of the aromatic rings. This delignification study not only presents a deeper investigation of the CAOSA process itself but also provides guidance for further research on biomass-lignin degradation.

中文翻译：

用活性氧和固体碱烹饪可促进竹预处理中木质素的降解†

我们小组开发的用活性氧和固体碱（CAOSA）进行烹饪，是清洁制浆和生物质预处理的有前途的替代方法，因为它是一种具有环境友好性和易于碱回收的优点的简便技术。通过使用2D-HSQC NMR进行比较分析，CAOSA工艺优异的脱木素效率可归因于木质素中苯环的更有效裂解，这与常规制浆路线形成鲜明对比。在产物溶液中检测到丰富的有机酸，也称为黄液（YL）。另外，在YL中存在包含芳族化合物的酸不溶性降解产物（AIDP），将其分离并收集。YL中低的AIDP含量表明芳环的高效分解。

更新日期：2018-07-19

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