期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 83, 期 2, 页码 227-231出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jaap.2008.07.004
关键词
Condensed tannins; Lignin; Thermally assisted hydrolysis and; methylation (THM); (13)C-labeled tetramethylammonium; hydroxide (TMAH); Soil organic matter (SOM)
资金
- Netherlands Organisation for Scientific Research (NWO)
Tannin, condensed and hydrolysable, and lignin are two of the most abundant natural biopolymers in the environment. Yet it is still not possible using one analytical technique to simultaneously track each of their dynamics in litter and soils. Thermally assisted hydrolysis and methylation (THM) using tetramethylammonium Lull hydroxide (TMAH) has been employed to investigate the cycling of tannin and lignin forms in one analysis, but Sometimes with equivocal results as many of the products released may originate from both biopolymers. In this Study we applied (13)C-labeled TMAH in the analysis of soil organic matter in a soil profile under Corsican pine, an input lacking in hydrolysable tannins, to show the potential of this tool in tracking complex phenol chemistry. This method successfully allowed for a qualitative distinction among tannin and lignin input as well as permitting the inference of ring specific decay of condensed tannins. (c) 2008 Elsevier B.V. All rights reserved.
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