Multi-step degradation method for β-O-4 linkages in lignins: γ-TTSA method. Part 3. Degradation of milled wood lignin (MWL) from Eucalyptus globulus

被引：7

作者：

Ando, Daisuke ^{[1
]}

Nakatsubo, Fumiaki ^{[2
]}

Takano, Toshiyuki ^{[1
]}

Nishimura, Hiroshi ^{[2
]}

Katahira, Masato ^{[3
]}

Yano, Hiroyuki ^{[2
]}

机构：

[1] Kyoto Univ, Div Forest & Biomat Sci, Grad Sch Agr, Sakyo Ku, Kyoto 6068502, Japan

[2] Kyoto Univ, Res Inst Sustainable Humanosphere, Uji, Kyoto, Japan

[3] Kyoto Univ, Inst Adv Energy, Uji, Kyoto, Japan

来源：

HOLZFORSCHUNG | 2013年 / 67卷 / 08期

关键词：

cleavage of beta-O-4 linkages; FT-IR; gamma-TTSA method; HSQC-NMR; lignin carbohydrate complex (LCC); lignin degradation; milled wood lignin (MWL); CARBOHYDRATE COMPLEXES LCCS; DFRC METHOD; AUTOHYDROLYSIS; FRACTIONATION; CLEAVAGE;

D O I：

10.1515/hf-2013-0008

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Milled wood lignin (MWL) of Eucalyptus globulus has been treated by a selective degradation method for beta-O-4 linkages, which lets the lignin carbohydrate complexes (LCC) intact. The method consists of four reaction steps: (1) gamma-tosylation, (2) thioetherification, (3) sulfonylation and (4) mild alkali treatment (gamma-TTSA method). Each step was followed by spectroscopies for chemical structural analysis; especially, the HSQC-NMR analysis was in focus. It was demonstrated that beta-O-4 linkages were selectively and quantitatively cleaved by the gamma-TTSA method while the beta-beta linkages in the MWL remained intact. The method leads to an enrichment of LCCs.

引用

页码：835 / 841

页数：7

共 5 条

[1] Multistep degradation method for β-O-4 linkage in lignins: γ-TTSA method. Part 2: reaction of lignin model polymer (DHP)
Ando, Daisuke
Nakatsubo, Fumiaki
Takano, Toshiyuki
Nishimura, Hiroshi
Katahira, Masato
Yano, Hiroyuki
HOLZFORSCHUNG, 2013, 67 (03) : 249 - 256
[2] Multi-step degradation method for β-O-4 linkages in lignins: α-TSA method. Part 1: Reaction of non-phenolic dimeric β-O-4 model compound
Ando, Daisuke
Takano, Toshiyuki
Nakatsubo, Fumiaki
HOLZFORSCHUNG, 2014, 68 (04) : 369 - 375
[3] Elucidation of LCC bonding sites via γ-TTSA lignin degradation: crude milled wood lignin (MWL) from Eucalyptus globulus for enrichment of lignin xylan linkages and their HSQC-NMR characterization
Ando, Daisuke
Nakatsubo, Fumiaki
Takano, Toshiyuki
Yano, Hiroyuki
HOLZFORSCHUNG, 2016, 70 (06) : 489 - 494
[4] Multi-steps degradation method for β-O-4 linkage in lignins: γ-TTSA method. Part 1: Reaction of non-phenolic dimeric β-O-4 model compounds
Ando, Daisuke
Takano, Toshiyuki
Nakatsubo, Fumiaki
HOLZFORSCHUNG, 2012, 66 (03) : 331 - 339
[5] A novel selective cleavage method for β-O-4 substructure in lignins named TIZ method.: I.: Degradation of guaiacyl and syringyl models
Katahira, R
Ujihara, M
Nakatsubo, F
JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY, 2003, 23 (01) : 71 - 87

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