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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
09/12/2008 |
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Data da última atualização: |
27/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SONG, G.; NOVOTNY, E. H.; SIMPSON, A. J.; CLAPP, C. E.; HAYES, M. H. B. |
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Afiliação: |
G. SONG, University of Limerick; ETELVINO HENRIQUE NOVOTNY, CNPS; A. J. SIMPSON, University of Toronto; C. E. CLAPP, University of Minnesota; M. H. B. HAYES, University of Limerick. |
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Título: |
Sequential exhaustive extraction of a Mollisol soil, and characterizations of humic components, including humin, by solid and solution state NMR. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
European Journal of Soil Science, Oxford, v. 59, n. 3, p. 505-516, Jun. 2008. |
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DOI: |
https://doi.org/10.1111/j.1365-2389.2007.01006.x |
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Idioma: |
Inglês |
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Conteúdo: |
A comprehensive sequential extraction procedure was applied to isolate soil organic components using aqueous solvents at different pH values, base plus urea (base-urea), and finally dimethylsulfoxide (DMSO) plus concentrated H2SO4 (DMSO-acid) for the humin-enriched clay separates. The extracts from base-urea and DMSO-acid would be regarded as 'humin' in the classical definitions. The fractions isolated from aqueous base, base-urea and DMSO-acid were characterized by solid and solution state NMR spectroscopy. The base-urea solvent system isolated ca. 10% (by mass) additional humic substances. The combined base-urea and DMSO-acid solvents isolated ca. 93% of total organic carbon from the humin-enriched fine clay fraction (<2 ?m). Characterization of the humic fractions by solid-state NMR spectroscopy showed that oxidized char materials were concentrated in humic acids isolated at pH 7, and in the base-urea extract. Lignin-derived materials were in considerable abundance in the humic acids isolated at pH 12.6. Only very small amounts of char-derived structures were contained in the fulvic acids and fulvic acids-like material isolated from the base-urea solvent. After extraction with base-urea, the 0.5 m NaOH extract from the humin-enriched clay was predominantly composed of aliphatic hydrocarbon groups, and with lesser amounts of aromatic carbon (probably including some char material), and carbohydrates and peptides. From the combination of solid and solution-state NMR spectroscopy, it is clear that the major components of humin materials, from the DMSO-acid solvent, after the exhaustive extraction sequence, were composed of microbial and plant derived components, mainly long-chain aliphatic species (including fatty acids/ester, waxes, lipids and cuticular material), carbohydrate, peptides/proteins, lignin derivatives, lipoprotein and peptidoglycan (major structural components in bacteria cell walls). Black carbon or char materials were enriched in humic acids isolated at pH 7 and humic acids-like material isolated in the base-urea medium, indicating that urea can liberate char-derived material hydrogen bonded or trapped within the humin matrix. MenosA comprehensive sequential extraction procedure was applied to isolate soil organic components using aqueous solvents at different pH values, base plus urea (base-urea), and finally dimethylsulfoxide (DMSO) plus concentrated H2SO4 (DMSO-acid) for the humin-enriched clay separates. The extracts from base-urea and DMSO-acid would be regarded as 'humin' in the classical definitions. The fractions isolated from aqueous base, base-urea and DMSO-acid were characterized by solid and solution state NMR spectroscopy. The base-urea solvent system isolated ca. 10% (by mass) additional humic substances. The combined base-urea and DMSO-acid solvents isolated ca. 93% of total organic carbon from the humin-enriched fine clay fraction (<2 ?m). Characterization of the humic fractions by solid-state NMR spectroscopy showed that oxidized char materials were concentrated in humic acids isolated at pH 7, and in the base-urea extract. Lignin-derived materials were in considerable abundance in the humic acids isolated at pH 12.6. Only very small amounts of char-derived structures were contained in the fulvic acids and fulvic acids-like material isolated from the base-urea solvent. After extraction with base-urea, the 0.5 m NaOH extract from the humin-enriched clay was predominantly composed of aliphatic hydrocarbon groups, and with lesser amounts of aromatic carbon (probably including some char material), and carbohydrates and peptides. From the combination of solid and solution-state NMR spectros... Mostrar Tudo |
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Palavras-Chave: |
Extração sequencial; Solo Mollisol; Substâncias húmicas. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02945naa a2200217 a 4500
001 1339738
005 2021-10-27
008 2008 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/j.1365-2389.2007.01006.x$2DOI
100 1 $aSONG, G.
245 $aSequential exhaustive extraction of a Mollisol soil, and characterizations of humic components, including humin, by solid and solution state NMR.$h[electronic resource]
260 $c2008
520 $aA comprehensive sequential extraction procedure was applied to isolate soil organic components using aqueous solvents at different pH values, base plus urea (base-urea), and finally dimethylsulfoxide (DMSO) plus concentrated H2SO4 (DMSO-acid) for the humin-enriched clay separates. The extracts from base-urea and DMSO-acid would be regarded as 'humin' in the classical definitions. The fractions isolated from aqueous base, base-urea and DMSO-acid were characterized by solid and solution state NMR spectroscopy. The base-urea solvent system isolated ca. 10% (by mass) additional humic substances. The combined base-urea and DMSO-acid solvents isolated ca. 93% of total organic carbon from the humin-enriched fine clay fraction (<2 ?m). Characterization of the humic fractions by solid-state NMR spectroscopy showed that oxidized char materials were concentrated in humic acids isolated at pH 7, and in the base-urea extract. Lignin-derived materials were in considerable abundance in the humic acids isolated at pH 12.6. Only very small amounts of char-derived structures were contained in the fulvic acids and fulvic acids-like material isolated from the base-urea solvent. After extraction with base-urea, the 0.5 m NaOH extract from the humin-enriched clay was predominantly composed of aliphatic hydrocarbon groups, and with lesser amounts of aromatic carbon (probably including some char material), and carbohydrates and peptides. From the combination of solid and solution-state NMR spectroscopy, it is clear that the major components of humin materials, from the DMSO-acid solvent, after the exhaustive extraction sequence, were composed of microbial and plant derived components, mainly long-chain aliphatic species (including fatty acids/ester, waxes, lipids and cuticular material), carbohydrate, peptides/proteins, lignin derivatives, lipoprotein and peptidoglycan (major structural components in bacteria cell walls). Black carbon or char materials were enriched in humic acids isolated at pH 7 and humic acids-like material isolated in the base-urea medium, indicating that urea can liberate char-derived material hydrogen bonded or trapped within the humin matrix.
653 $aExtração sequencial
653 $aSolo Mollisol
653 $aSubstâncias húmicas
700 1 $aNOVOTNY, E. H.
700 1 $aSIMPSON, A. J.
700 1 $aCLAPP, C. E.
700 1 $aHAYES, M. H. B.
773 $tEuropean Journal of Soil Science, Oxford$gv. 59, n. 3, p. 505-516, Jun. 2008.
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Registro original: |
Embrapa Solos (CNPS) |
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| Registros recuperados : 7 | |
| 1. |  | CAVALCANTI, J. J. V.; VASCONCELOS, W. S.; FARIAS, F. J. C.; VASCONCELOS, U. A. A.; SANTOS, R. C. dos. Mecanismos genéticos para caracteres de fibras em genótipos de algodoeiro submetidos a estresse hídrico. In: CONGRESSO BRASILEIRO DO ALGODÃO, 11., 2017, Maceió. Resumos... Inovação e rentabilidade na cotonicultura: resumos... Brasília, DF: Associação Brasileira dos Produtores de Algodão - Abrapa, 2017.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 2. | | CAVALCANTI, J. J. V.; VASCONCELOS, U. A. A.; VASCONCELOS, W. S.; SANTOS, R. C. dos; FARIAS, F. J. C.; ARAUJO, G. P. de; ASSUNCAO, J. H. de. Combining ability estimates for agronomic and morphological traits in cotton under water stress. IN: WORLD COTTON RESEARCH CONFERENCE, 6., 2016. Goiânia, Brazil. Proceedings... England, UK: Innovation in Textiles, 2016. p. 131-132.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 3. | | CAVALCANTI, T. G.; SOUZA, A. F. de; FERREIRA, G. F.; DIAS, D. S. B.; SEVERINO, L. S.; MORAIS, J. P. S.; SOUSA, K. A. de; VASCONCELOS, U. Use of agro-industrial waste in the removal of phenanthrene and pyrene by microbial consortia in soil. Waste and Biomass Valorization, v. 10, n. 1, p. 205-214, January 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Algodão. |
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| 4. | | CAVALCANTI, J. J. V.; VASCONCELOS, U.; FARIAS, F. J. C.; SANTOS, R. C. dos; VASCONCELOS, W. S.; ANDRADE, P. P.; ASSUNCAO, J. H. de; ARAUJO, G. P. de; SOUZA, L. da S. S de S. Análise dialélica em algodoeiro (Gossypium hirsutum L.) para tolerância à seca. In: CONGRESSO BRASILEIRO DO ALGODÃO, 10., 2015, Foz do Iguaçu. Resumos. Brasília, DF: ABRAPA, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 5. | | FARIAS, F. J. C.; VASCONCELOS, W. S.; CAVALCANTI, J. J. V.; SANTOS, R. C. dos; VASCONCELOS, U. A. A.; ANDRADE, F. P.; ASSUNCAO, J. H. de; ARAUJO, G. P. de; SOUZA, L. da S. S. de. Análise dialélica para caracteres tecnológicos de fibras em híbridos de algodoeiro. In: CONGRESSO BRASILEIRO DO ALGODÃO, 10., 2015, Foz do Iguaçu. Resumos. Brasília, DF: ABRAPA, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 6. | | FARIAS, F. J. C.; CARVALHO, L. P. de; VASCONCELOS, W. de S.; VASCONCELOS, U. A. A.; SOUZA, L. da S. S. de; ASSUNCAO, J. H. de; CAVALCANTI, J. J. V.; ZONTA, J. H. Linhagens elites de algodoeiro com fibras longas para o Semiárido Nordestino. In: CONGRESSO BRASILEIRO DO ALGODÃO, 10., 2015, Foz do Iguaçu. Resumos. Brasília, DF: ABRAPA, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 7. | | RIBEIRO JÚNIOR, W. Q.; RAMOS, M. L. G.; VASCONCELOS, U.; TRINDADE, M. da G.; FERREIRA, F. M.; SIQUEIRA, M. M. H.; SILVA, H. L. M. da; RODRIGUES, G. C.; GUERRA, A. F.; ROCHA, O. C.; AMÁBILE, R. F.; ALBUQUERQUE, A. C.; SÓ e SILVA, M.; ALBRECHT, J. C.; DURÃES, F. O. M. Fenotipagem para tolerância à seca visando o melhoramento genético do trigo no cerrado. Passo Fundo: Embrapa Trigo, 2006. 24 p. html. (Embrapa Trigo. Circular técnica online, 21).| Biblioteca(s): Embrapa Trigo. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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