Structural changes of bamboo-derived lignin in an integrated process of autohydrolysis and formic acid inducing rapid delignification

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Yongchao Zhang, Menghua Qin, Wenyang Xu, Yingjuan Fu, Zhaojiang Wang, Zongquan Li, Stefan Willför, Chunlin Xu, Qingxi Hou
Publiceringsår: 2018
Tidskrift: Industrial Crops and Products
Tidskriftsakronym: Ind. Crops Prod.
Volym: 115
Artikelns första sida, sidnummer: 194
Artikelns sista sida, sidnummer: 201
eISSN: 1872-633X


Abstrakt

Bamboo chips were efficiently fractionated using an integrated process of autohydrolysis and formic acid to induce rapid delignification. Autohydrolysis pretreatment facilitated oligosaccharide production, while the subsequent rapid-delignification using formic acid at a low liquid/solid ratio with a relatively short reaction time allowed obtaining cellulose fibers and lignin. The major inter-unit linkages of side-chain in lignin were cleaved during the combined fractionation process. The lignin fraction exhibited higher purity, more phenolic OH groups, less condensed phenolic OH groups, and higher syringyl/guaiacyl ratio (S/G) as compared to MWL and formic acid lignin from the direct formic acid delignification. These results indicate that the combined fractionation process presents a promising approach to the commercial utilization in the biorefinery industry.


Nyckelord

Autohydrolysis, Bamboo, Rapid-fractionation, Structural analysis


Dokument


Senast uppdaterad 2020-29-01 vid 04:03