ISSN 2457-9459 (Online)
ISSN-L 0576-9787 (Print)
2023
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Journal Citation Reports |
Impact factor 2023: 1.3
5-Year Impact Factor: 1.2
Article Influence® Score: 0.140
Ranked 9 out of 23
MATERIALS SCIENCE, PAPER & WOOD (Q2) |
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Scopus |
CiteScore 2023: 2.3
SNIP: 0.405 |
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SCImago |
SJR: 0.264
H-Index: 42
Ranked Q3 |
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Title
Synthesis and characterization of pectin-dehydrogenation polymer complex by isotopic labeling method
Authors
PENG WANG JIANYUN FAN and YIMIN XIE
Received
July 3, 2012
Published
Volume 47 Issue 5-6 May-June
Keywords
pectin, coniferin, isotopic labeling method, 13C-NMR
Abstract
Coniferin is closer to natural lignin precursors than coniferyl alcohol. Both conventional and α13C labeled coniferin
were polymerized in the presence of pectin to obtain a pectin-dehydrogenation polymer (pectin-DHP) complex under a
closer approximation condition of the natural process for the formation of macromolecular lignin in the cell wall. A
pectin-DHP complex was isolated and purified by extraction, hydrolysis, centrifugation and gel-adsorption method. The
structure of the complex was analyzed by 13carbon nuclear magnetic resonance (13C-NMR) spectroscopy. The results of
13C-NMR spectroscopy indicate that DHP was covalently linked to the pectin by benzyl ether bonds, ester bonds and
acetal bonds. It was also found that the structure of the pectin-DHP complex approximated that of native lignin more
closely than did the structure of the DHPs prepared from coniferyl alcohol. By these results, it was demonstrated that
the lignin-pectin complex occurs in plant cell during lignin formation.
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