Compost humic acid-like (cHAL) polymeric matter (MW 15610), isolated in 12% yield from food and green waste compost, exhibits very good surfactant properties in aqueous solution: i.e., critical micelle concentration (cmc) = 403 mg/L and surface tension at cmc = 36.1 mN/m. Values of cmc are confirmed also by conductivity and phenanthrene solubility measurements. These results, compared with those for other major commercial and research surfactants, propose MAL as a competitive low-cost biosurfactant.
|Titolo:||Chemicals from Wastes : Compost-Derived Humic Acid–Like Matter as Surfactant|
|Settore Scientifico Disciplinare:||Settore AGR/13 - Chimica Agraria|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1021/es051637r|
|Appare nelle tipologie:||01 - Articolo su periodico|