Characterization of cottonseed hull lignin for valorizing it into value-added chemicals and materials

文献类型： 外文期刊

第一作者： Cai, Chenggu

作者： Cai, Chenggu;Huo, Pengju;Zhong, Pingxiang;Ma, Lei;Ren, Maozhi;Yang, Zuoren;Li, Fuguang;Cai, Chenggu;Zhong, Pingxiang;Ma, Lei;Yang, Zuoren;Li, Fuguang;Xu, Zhaoxian

作者机构：

关键词： Cottonseed hulls; Lignocellulosic biomass utilization; Lignin characterization; Lignin valorization; Value-added products

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.2； 五年影响因子：6.2 ）

ISSN： 0926-6690

年卷期： 2024 年 222 卷

页码：

收录情况： SCI

摘要： Cottonseed hulls (CSHs) emerge as a promising lignocellulosic feedstock for synthesizing high-value products through the biorefinery approach. However, scant attention has been devoted to a detailed characterization of their primary components, particularly the intricate lignin fraction. This study conducted a comprehensive compositional analysis of CSHs, primarily delving into the intricate characterization of lignin samples extracted via organosolv and alkaline methods. The investigation encompassed the fundamental lignin unit composition, inter-chemical linkages, molecular weight distribution, and functional group profile. Further analysis revealed that alkaline-extracted lignin possesses a higher abundance of low-molecular-weight lignin fragments and hydroxyl groups than organosolv-extracted lignin. This distinct characteristic renders alkaline lignin a favorable candidate for producing chemicals and functional materials via bioconversion and chemical modification. To demonstrate this, alkaline lignin was successfully valorized into cis, cis-muconate and white lignin material. This study provides valuable insights into the fundamental characteristics of CSH lignin, uncovering its potential for the synthesis of value-added chemicals and materials.

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