Geochemistry of amino acids in some Florida peat accumulations--I. Analytical approach and total amino acid concentrations

Details Geochemistry of amino acids in some Florida peat accumulations--I. Analytical approach and total amino acid concentrations Geochemistry of amino acids in some Florida peat accumulations--I. Analytical approach and total amino acid concentrations

Mar 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974gecoa..38..419c&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 38, Issue 3, pp.419-434

Computer Science

1

Scientific paper

Amino acids have been isolated from peats and fractions thereof at two sites in different environments in the Florida Everglades. For comparison, amino acids were also obtained by hydrolysis of organs of the plants now providing the surface cover at the sites and of discarded plant parts in surface litter. The amino acids, including a number of non-protein acids, were analyzed by GLC of volatile derivatives. There is a marked tendency for the total amino acid concentrations to increase in the order plant material < surface litter < peat, and for the ratio of non-protein to protein acids to increase in the same sense. It appears that the nature of the ecosystem is such that a comparatively small proportion of the carbon in the macroflora accumulates as peat while nitrogen is extensively re-worked but largely conserved. The greatest proportion both of the organic matter and of the amino acids were found in the humin fractions of the peat. The amount of free acids (i.e. extractable by cold acid) was very small, but the ratio, non-protein/protein, was greatest in this fraction.

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