Bleaching-free, lignin-tolerant, high-yield production of nanocrystalline cellulose from lignocellulosic biomass

Nanocrystalline cellulose (NCC) preparation in an integrated fractionation manner is expected to solve the problems of low yield and environmental impact in the traditional process. An integrated fractionation strategy for NCC production from wood was developed through catalytic biomass fractionatio...

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Bibliographic Details
Published in:iScience 2023-01, Vol.26 (1), p.105771-105771, Article 105771
Main Authors: Li, Zipeng, Xie, Di, Zhu, Weizhi, Wang, Hongjie, Ouyang, Tulong, Sun, Jianping, Wu, Yiqiang, Cheng, Fangchao
Format: Article
Language:English
Subjects:
Biological sciences
Biomass
Biomaterials
Biotechnology
Chemical engineering
Materials science
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Summary:Nanocrystalline cellulose (NCC) preparation in an integrated fractionation manner is expected to solve the problems of low yield and environmental impact in the traditional process. An integrated fractionation strategy for NCC production from wood was developed through catalytic biomass fractionation, the partial dissolution of cellulose-rich materials (CRMs) in aqueous tetrabutylphosphonium hydroxide, and short-term ultrasonication. The presented process could tolerate a high CRM lignin content of 21.2 wt % and provide a high NCC yield of 76.6 wt % (34.3 wt % of the original biomass). The increase in the CRM lignin content decreased the NCC yield, facilitated the crystal transition of NCC from cellulose I to cellulose II, and showed no apparent effects on the NCC morphology. A partial/selective dissolution mechanism is proposed for the presented strategy. This study provided a promising efficient fractionation-based method toward comprehensive and high-value utilization of lignocellulosic biomass through effective delignification and high-yield NCC production. [Display omitted] •A bleaching-free, lignin-tolerant strategy for high-yield NCC production was used•The strategy combined wood fractionation with partial dissolution of cellulose•The process can tolerate a lignin content of 21.2 wt % in cellulose-rich materials•The process provided a high NCC yield of 76.6 wt %, which was 34.3 wt % of wood Chemical engineering; Biological sciences; Biotechnology; Biomass; Materials science; Biomaterials
ISSN:2589-0042
2589-0042
DOI:10.1016/j.isci.2022.105771