کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5162211 1502265 2016 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Insights into the composition of recalcitrant organic matter from estuarine sediments using NMR spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Insights into the composition of recalcitrant organic matter from estuarine sediments using NMR spectroscopy
چکیده انگلیسی
The NMR data provided new insights into the molecular structures that become part of the long term C sink in sediments. The recalcitrant OC in the sediments is composed mainly of aliphatic hydrocarbon material that may be protected from, or otherwise unavailable for, degradation. Microbial peptides and carbohydrates were also shown to be important contributors to the C sink and these biomolecules may be from living biomass or preserved necromass. Lignin residues formed only a small part of the OM in the surface sediments but made a greater contribution at depth. Highly ordered components in HU (that resists swelling by dimethylsulfoxide, DMSO) play a major role in C sequestration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Geochemistry - Volume 98, August 2016, Pages 155-165
نویسندگان
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