Details
| Original language | English |
|---|---|
| Pages (from-to) | 2166-2176 |
| Number of pages | 11 |
| Journal | CHEMOSPHERE |
| Volume | 66 |
| Issue number | 11 |
| Publication status | Published - Feb 2007 |
| Externally published | Yes |
Abstract
Aerobic decomposition and stabilization of organic matter during the composting of waste materials is primarily due to the biochemical transformation of water-soluble compounds in the liquid phase by the microbial biomass. For this reason water-soluble organic matter represents the most active fraction of compost, both biologically and chemically, and thus should directly reflect the biochemical alteration of organic matter. This work aims to elucidate the microbial-mediated processes responsible for the distribution of soluble organic matter between stable and labile pools with composting time. Accordingly, chemical analysis as well as UV absorption, and 1H and 13C-NMR spectroscopy of samples collected during the industrial composting of urban waste revealed microbial induced transformation of water-extractable organic matter over time. The chemical composition changed from labile, hydrophilic, plant-derived organic compounds in the beginning to predominately stable, hydrophobic moieties comprising lignin-derived phenols and microbially-derived carbohydrates at later stages of composting.
Keywords
- Amino sugars, Composting, Lignin-decomposition products, Liquid-state NMR, Neutral and acidic carbohydrates, Water-extractable organic matter
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Engineering
- Environmental Science(all)
- Environmental Chemistry
- Chemistry(all)
- Environmental Science(all)
- Pollution
- Environmental Science(all)
- Health, Toxicology and Mutagenesis
Sustainable Development Goals
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: CHEMOSPHERE, Vol. 66, No. 11, 02.2007, p. 2166-2176.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Changes in the chemical composition of water-extractable organic matter during composting: Distribution between stable and labile organic matter pools
AU - Said-Pullicino, D.
AU - Kaiser, K.
AU - Guggenberger, G.
AU - Gigliotti, G.
N1 - Funding information: This project was partially financed by the Italian Ministry of Education, University and Research (PRIN03). D. Said-Pullicino acknowledges a research grant from the International Humic Substance Society (IHSS). Special thanks are expressed to Federico Valentini at Gesenu SpA, Andreas Bierke and Gianluca Ciancaleoni for their collaboration.
PY - 2007/2
Y1 - 2007/2
N2 - Aerobic decomposition and stabilization of organic matter during the composting of waste materials is primarily due to the biochemical transformation of water-soluble compounds in the liquid phase by the microbial biomass. For this reason water-soluble organic matter represents the most active fraction of compost, both biologically and chemically, and thus should directly reflect the biochemical alteration of organic matter. This work aims to elucidate the microbial-mediated processes responsible for the distribution of soluble organic matter between stable and labile pools with composting time. Accordingly, chemical analysis as well as UV absorption, and 1H and 13C-NMR spectroscopy of samples collected during the industrial composting of urban waste revealed microbial induced transformation of water-extractable organic matter over time. The chemical composition changed from labile, hydrophilic, plant-derived organic compounds in the beginning to predominately stable, hydrophobic moieties comprising lignin-derived phenols and microbially-derived carbohydrates at later stages of composting.
AB - Aerobic decomposition and stabilization of organic matter during the composting of waste materials is primarily due to the biochemical transformation of water-soluble compounds in the liquid phase by the microbial biomass. For this reason water-soluble organic matter represents the most active fraction of compost, both biologically and chemically, and thus should directly reflect the biochemical alteration of organic matter. This work aims to elucidate the microbial-mediated processes responsible for the distribution of soluble organic matter between stable and labile pools with composting time. Accordingly, chemical analysis as well as UV absorption, and 1H and 13C-NMR spectroscopy of samples collected during the industrial composting of urban waste revealed microbial induced transformation of water-extractable organic matter over time. The chemical composition changed from labile, hydrophilic, plant-derived organic compounds in the beginning to predominately stable, hydrophobic moieties comprising lignin-derived phenols and microbially-derived carbohydrates at later stages of composting.
KW - Amino sugars
KW - Composting
KW - Lignin-decomposition products
KW - Liquid-state NMR
KW - Neutral and acidic carbohydrates
KW - Water-extractable organic matter
UR - http://www.scopus.com/inward/record.url?scp=33846108887&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2006.09.010
DO - 10.1016/j.chemosphere.2006.09.010
M3 - Article
C2 - 17125814
AN - SCOPUS:33846108887
VL - 66
SP - 2166
EP - 2176
JO - CHEMOSPHERE
JF - CHEMOSPHERE
SN - 0045-6535
IS - 11
ER -