Linking diagenetic alteration of amino acids and bulk organic matter reactivity
Dauwe, B.; Middelburg, J.J.; Herman, P.M.J.; Heip, C.H.R. (1999). Linking diagenetic alteration of amino acids and bulk organic matter reactivity. Limnol. Oceanogr. 44(7): 1809-1814
In: Limnology and Oceanography. American Society of Limnology and Oceanography: Waco, Tex., etc. ISSN 0024-3590; e-ISSN 1939-5590, more
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| Keywords |
Acids > Organic compounds > Organic acids > Amino acids
Chemical reactions > Degradation > Biodegradation
Chemistry > Geochemistry > Sediment chemistry
Cycles > Chemical cycles > Geochemical cycle
Sedimentation > Diagenesis
Marine/Coastal |
| Abstract |
Examination of amino acids in particulate samples from a variety of marine environments (fresh phytoplankton to deep-sea sediments) revealed systematic compositional changes upon progressive degradation. These consistent trends have been used to derive a quantitative degradation index (DI) that is directly related to the reactivity of the organic material, as indicated by its lability to enzymatic decay and its first-order degradation rate constant. This direct link between molecular composition and degradation rate allows us to quantify the quality of organic matter based solely on its chemical composition. |
| Dataset |
- Dauwe B., Herman P. 1999: Linking diagenetic alteration of amino acids and bulk organic matter reactivity. Netherlands Institute of Ecology; Centre for Estuarine and Marine Ecology, Netherlands. Metadata available at http://mda.nioo.knaw.nl/imis.php?module=dataset&dasid=1822, more
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