Bioavailable amino acids in sediments: A biomimetic, kinetics based approach
نویسندگان
چکیده
منابع مشابه
Correction: Abiotic Racemization Kinetics of Amino Acids in Marine Sediments
The ratios of d- versus l-amino acids can be used to infer the sources and composition of sedimentary organic matter. Such inferences, however, rely on knowing the rates at which amino acids in sedimentary organic matter racemize abiotically between the d- and the l-forms. Based on a heating experiment, we report kinetic parameters for racemization of aspartic acid, glutamic acid, serine, and a...
متن کاملRacemization of amino acids in marine sediments.
Isoleucine, one of several amino acids isolated from a suite of welldated deep-sea cores, shows a progressive increase in the degree of racemization with the age of the sediment. Amino acids in sediments show an initial rate of racemization almost an order of magnitude faster than the rate observed for free amino acids at a comparable pH and temperature. The observed kinetics depend on a variet...
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Wang, J. 2016. In Vitro Kinetics of Ribosomal Incorporation of Unnatural Amino Acids. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1369. 55 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9563-3. Ribosomal incorporation of unnatural amino acids (AAs) into peptides or proteins has found broad applications in studying translation...
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The degradation of branched-chain amino acids (valine, leucine, and isoleucine) in subcritical water was measured from 290 degrees C to 330 degrees C. The degradation process at any temperature obeyed first-order kinetics. The energy of activation for the degradation of each amino acid could be estimated according to the Arrhenius equation. The pH value of the reaction mixture increased during ...
متن کاملTransport kinetics of amino acids across the resting human leg.
Flux rates of amino acids were measured across the leg after an overnight fast in resting human volunteers. A balanced amino acid solution was, after a primed infusion, continuously infused for 2 h at each of three step-wise and increasing rates corresponding to 8.3, 16.7, 33.2 mg N/kg per h that were equivalent to 0.2, 0.4, 0.8 g N/kg per d. Flux of amino acids across the leg was compared with...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 1995
ISSN: 0024-3590
DOI: 10.4319/lo.1995.40.3.0511