engleski

The copper complexing properties of melanoidins and marine humic material

Melanoidins, condensation products of sugar and amino acids may represent a key link in the transformation of polysaccharides to humic material in marine environment.Melanoidins prepared using a condensation time longer than two days exibit complexation properties towards copper ions that appear to to depend on the basicity of amino acid precursor. Melanoidins of molecular mass<10000 and >10000exibit similar complexing properties. The copper complexing properties isolated from marine lagoon sediments were determined for comparison.

copper; complexing capacity; melanoidins; humic acid; seawater

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