Structural study of extractable lignins from oak heartwood

被引：1
|
作者：
Vivas, N
de Gaulejac, NSC
Bourgeois, G
Vitry, C
Pianet, I
Barbe, B
Glories, Y
机构：
[1] Univ Victor Segalen, Fac Oenol, F-33405 Talence, France
[2] Univ Bordeaux 1, CESAMO, F-33405 Talence, France
来源：
JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE | 1998年 / 95卷 / 02期
关键词：
Quercus; heartwood; lignins; NMR; structure;
D O I：
10.1051/jcp:1998156
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
In this work, authors present a structural investigation of two extractible heartwood lignins from Q. robur: LE, extractable by acidic hydroalcoholic medium (MW 23 kDa) and LD, extractable by acidified dioxan (MW 45 kDa), NMR spectrum analysis with 2D TOCSY and HMQC experiments performed the structural characteristics of this two lignins fractions. LD and LE contain principaly monomethoxyl (Gaiacyls) and dimethoxyl (Syringyls) phenolic units with beta-O-4 ary-ether linkage. LD are richer in G units than LE.
引用
收藏
页码：430 / 436
页数：7
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