Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis

Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis

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9 pages, 3 figures, 4 tables, 16 references. The authors wish to thank Mrs. Trinidad Verdejo for technical assistance, Dr. Serafín González for the 15N/14N measurements, Mr. Eutiquio Barbero for the elemental analyses. Conferencia celebrada en Sevilla, 9 a 12, mayo, 2001.

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Main Authors: González-Vila, Francisco Javier, Tinoco, Pilar, Zancada Fernández, M. Cristina , Almendros Martín, Gonzalo
Format: comunicación de congreso biblioteca
Language:English
Published: ORBIT 2001 2001
Subjects:15N/14N ratios, Incubation, Humic acid, Fulvic acid, Water-soluble,
Online Access:http://hdl.handle.net/10261/51612
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spelling dig-irnas-es-10261-516122021-06-24T08:04:44Z Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis González-Vila, Francisco Javier Tinoco, Pilar Zancada Fernández, M. Cristina  Almendros Martín, Gonzalo 15N/14N ratios Incubation Humic acid Fulvic acid Water-soluble 9 pages, 3 figures, 4 tables, 16 references. The authors wish to thank Mrs. Trinidad Verdejo for technical assistance, Dr. Serafín González for the 15N/14N measurements, Mr. Eutiquio Barbero for the elemental analyses. Conferencia celebrada en Sevilla, 9 a 12, mayo, 2001. A molecular assessment of different C and N forms from a compost-treated soil has been performed by NMR spectroscopy and pyrolysis-gas chromatography-mass spectrometry. A 15N-enriched mixture of urban compost (30%), wheat straw (64%) and K15NO3 (6%) incubated for 80 days was used to isolate different fractions: water-soluble (WS), humic acid-like (HA), fulvic acid-like (FA), and alkali-insoluble fractions. This compost (21.8% N as 15N) was added to a mineral soil and incubated for 80 days. These fractions and two particulate ones were isolated from the composttreated soil. The stable isotope ratios (15N/14N) of each fraction were compared to monitor the N speciation patterns in soil. Most of the newly-formed N-compounds concentrate in WS (96% 15N) and in the insoluble residue (>25% 15N) but about 28% consists of amide N in the HA. According to spectroscopic and pyrolytic data the HA resembles to a lignoprotein, whereas the FA consists of a C=O-containing carbohydrate material. Alkyl compounds suggesting the presence of lipid macromolecules are released mainly by particulate fractions. The WS (1.7% of total N) showed heterogeneous composition yielding methoxyphenols, furans, fatty acids and N-compounds (mainly pyrroles). Our results suggest that non-selective biodegradation of the different C and N forms dominates over the formation of humic substances. Financial support (grants AMB99-0907 and AMB99-0226). CICYT. Peer reviewed 2012-06-15T06:41:03Z 2012-06-15T06:41:03Z 2001 comunicación de congreso http://purl.org/coar/resource_type/c_5794 Proceedingsof the International Conference ORBIT 2001 on Biological processing of waste: a product-oriented perspective I: 53-62 (2001) Organic Recovery and Biological Treatment (ORBIT) M-18.877-2001 http://hdl.handle.net/10261/51612 en open ORBIT 2001
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic 15N/14N ratios
Incubation
Humic acid
Fulvic acid
Water-soluble
15N/14N ratios
Incubation
Humic acid
Fulvic acid
Water-soluble
spellingShingle 15N/14N ratios
Incubation
Humic acid
Fulvic acid
Water-soluble
15N/14N ratios
Incubation
Humic acid
Fulvic acid
Water-soluble
González-Vila, Francisco Javier
Tinoco, Pilar
Zancada Fernández, M. Cristina 
Almendros Martín, Gonzalo
Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis
description 9 pages, 3 figures, 4 tables, 16 references. The authors wish to thank Mrs. Trinidad Verdejo for technical assistance, Dr. Serafín González for the 15N/14N measurements, Mr. Eutiquio Barbero for the elemental analyses. Conferencia celebrada en Sevilla, 9 a 12, mayo, 2001.
format comunicación de congreso
topic_facet 15N/14N ratios
Incubation
Humic acid
Fulvic acid
Water-soluble
author González-Vila, Francisco Javier
Tinoco, Pilar
Zancada Fernández, M. Cristina 
Almendros Martín, Gonzalo
author_facet González-Vila, Francisco Javier
Tinoco, Pilar
Zancada Fernández, M. Cristina 
Almendros Martín, Gonzalo
author_sort González-Vila, Francisco Javier
title Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis
title_short Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis
title_full Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis
title_fullStr Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis
title_full_unstemmed Transformations in soil of the organic fractions from 15N labelled compost as revealed by 13C and 15N NMR spectroscopies and analytical pyrolysis
title_sort transformations in soil of the organic fractions from 15n labelled compost as revealed by 13c and 15n nmr spectroscopies and analytical pyrolysis
publisher ORBIT 2001
publishDate 2001
url http://hdl.handle.net/10261/51612
work_keys_str_mv AT gonzalezvilafranciscojavier transformationsinsoiloftheorganicfractionsfrom15nlabelledcompostasrevealedby13cand15nnmrspectroscopiesandanalyticalpyrolysis
AT tinocopilar transformationsinsoiloftheorganicfractionsfrom15nlabelledcompostasrevealedby13cand15nnmrspectroscopiesandanalyticalpyrolysis
AT zancadafernandezmcristina transformationsinsoiloftheorganicfractionsfrom15nlabelledcompostasrevealedby13cand15nnmrspectroscopiesandanalyticalpyrolysis
AT almendrosmartingonzalo transformationsinsoiloftheorganicfractionsfrom15nlabelledcompostasrevealedby13cand15nnmrspectroscopiesandanalyticalpyrolysis
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