Physicochemical characterization of liginin isolated with high yield purity from wheat straw

被引：14

作者：

Sun, XF ^{[1
]}

Sun, RC

Fowler, P

Baird, MS

机构：

[1] Univ Wales, Biocomposites Ctr, Bangor LL57 2UW, Gwynedd, Wales

[2] NW Sci & Technol Univ Agr & Forestry, Coll Forestry, Yangling, Peoples R China

[3] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou, Peoples R China

[4] Univ Wales, Dept Chem, Bangor LL57 2UW, Gwynedd, Wales

来源：

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2004年 / 9卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

lignin; UV; thermal analysis; NMR; molecular weight; wheat straw;

D O I：

10.1080/10236660490935727

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Lignin preparation with high yield (85.71%) and purity (96.97%) from wheat straw was obtained by ball milling treatment and direct acidic dioxane extraction. This procedure gives a material that is representative of the whole lignin of wheat straw. The lignin fraction is distinguished by high beta-O-4' structures and small amounts of condensed units (beta-5, 5-5 and beta-1') enriched in guaiacyl units. p-Coumaric acid is linked to lignin via gamma-ester bond and a few ether bonds such as beta-O-4' whereas ferulic acid is linked to lignin by ether bonds, and its dehydrodimers (5-5'/8-O-4') are also incorporated into lignin polymer.

引用

页码：317 / 337

页数：21

共 32 条

[1] Elucidation of the structures of residual and dissolved pine kraft lignins using an HMQC NMR technique [J].

Balakshin, MY ;

Capanema, EA ;

Chen, CL ;

Gracz, HS .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2003, 51 (21) :6116-6127

[2]

Billa E, 1995, CELL CHEM TECHNOL, V29, P305

[3] MOLECULAR VARIABILITY OF LIGNIN FRACTIONS-ISOLATED FROM WHEAT-STRAW [J].

BILLA, E ;

MONTIES, B .

RESEARCH ON CHEMICAL INTERMEDIATES, 1995, 21 (3-5) :303-311

[4] Structure and reactivity of lignins and associated phenolic acids in wheat straw TMP and CTMP pulps [J].

Billa, E ;

de Choudens, C ;

Monties, B .

HOLZFORSCHUNG, 2000, 54 (06) :637-640

[5] A SIMPLE AND RAPID PREPARATION OF ALDITOL ACETATES FOR MONOSACCHARIDE ANALYSIS [J].

BLAKENEY, AB ;

HARRIS, PJ ;

HENRY, RJ ;

STONE, BA .

CARBOHYDRATE RESEARCH, 1983, 113 (02) :291-299

[6] Isolation and identification of a ferulic acid dehydrotrimer from saponified maize bran insoluble fiber [J].

Bunzel, M ;

Ralph, J ;

Funk, C ;

Steinhart, H .

EUROPEAN FOOD RESEARCH AND TECHNOLOGY, 2003, 217 (02) :128-133

[7] Aqueous gel permeation chromatographic methods for technical lignins [J].

Chen, FG ;

Li, J .

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY, 2000, 20 (03) :265-276

[8] Structural analysis of wheat straw lignin by quantitative P-31 and 2D NMR spectroscopy. The occurrence of ester bonds and alpha-O-4 substructures [J].

Crestini, C ;

Argyropoulos, DS .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1997, 45 (04) :1212-1219

[9] Lignin distribution in coppice poplar, linseed and wheat straw [J].

Donaldson, L ;

Hague, J ;

Snell, R .

HOLZFORSCHUNG, 2001, 55 (04) :379-385

[10]

ERNST AJ, 1996, TAPPI J, V43, P49

← 1 2 3 4 →