title: Chemical characteristics of dissolved organic matter during composting of different organic wastes assessed by (13)C CPMAS NMR spectroscopy.
abstract: This research aimed at assessing the chemical changes occurring in DOM extracted from different composting substrates by means of (13)C CPMAS NMR spectroscopy. During composting a reduction of carbohydrates and an increase of aromatic, phenolic, carboxylic and carbonylic C were observed. The highest increase in alkyl C and the lowest increase in aromatic C were explained by the presence of hardly degradable pine needles in the substrate, whereas the highest reduction in carbohydrates and the highest increase of the alkyl C/O-alkyl C ratio were attributed to the presence of highly degradable materials such as spent yeast from beer production.
authors.affiliation: Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA.
authors.forename: P
authors.initials: P
authors.lastname: Caricasole
authors.forename: M R
authors.initials: MR
authors.lastname: Provenzano
authors.forename: P G
authors.initials: PG
authors.lastname: Hatcher
authors.forename: N
authors.initials: N
authors.lastname: Senesi
mesh_terms: D002244:Carbon / Q000032:analysis; D004553:Electric Conductivity; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D009584:Nitrogen / Q000032:analysis; D009930:Organic Chemicals / Q000737:chemistry*; D012987:Soil / Q000032:analysis*; D012995:Solubility; D014866:Waste Products / Q000032:analysis*
chemical_list: D009930:Organic Chemicals; D012987:Soil; D014866:Waste Products; D002244:Carbon; D009584:Nitrogen