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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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| Registros recuperados : 417 | |
| 161. |  | SANTOS, R. M.; VOLTOLINI, T. V.; ANGELOTTI, F.; DANTAS, B. F.; MOURA, M. S. B. de; FERNANDES, H. A. Germinação de sementes de capim-búfel em função de variações na temperatura média do ar. In: CONGRESSO NORDESTINO DE PRODUÇÃO ANIMAL, 6.; SIMPÓSIO NORDESTINO DE ALIMENTAÇÃO DE RUMINANTES, 7.; FÓRUM DE COORDENADORES DE PÓS GRADUAÇÃO EM PRODUÇÃO ANIMAL DO NORDESTE, 1.; FÓRUM DE AGROECOLOGIA RO RIO GRANDE DO NORTE, 1., 2010, Mossoró. Anais... Mossoró: Sociedade Nordestina de Producao Animal; UFERSA, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 162. | | DANTAS, B. F.; GOMES, S. E. V.; MATIAS, J. R.; MOURA, M. S. B. de; ANGELOTTI, F.; SEAL, C. E. Germinação de sementes de Poincianella pyramidalis (Tul.) L.P. Queiroz E P. microphylla (Mart. Ex G. Don.) nos climas atual e futuro. Informativo ABRATES, Londrina, v. 27, n. 2, p. 90, ago. 2017. Número especial. Edição dos Resumos do XX Congresso Brasileiro de Sementes, Foz do Iguaçu, ago. 2017.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 164. | | SOUZA, L. S. B.; MOURA, M. S. B. de; SEDIYAMA, G. C.; SILVA, T. G. F. da; BRANDÃO, E. O. Determinação do coeficiente de cultura do milho (Zea mays L.) sob condições de semiárido brasileiro. In: CONGRESSO BRASILEIRO DE METEOROLOGIA, 16., 2010, Belém, PA. A Amazônia e o clima global: anais. Belém, PA: SBMET, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 168. | | OLIVEIRA, L. D. da S.; SOUZA, L. S. B. de; MOURA, M. S. B. de; RODRIGUES, G. D. da S. Efeito do aumento da temperatura na classificação climática do município de Nossa Senhora da Glória, SE. In: CONGRESSO INTERNACIONAL DA REALIDADE SEMIÁRIDA, 2.; SIMPÓSIO ALAGOANO SOBRE ECOSSISTEMAS DO SEMIÁRIDO, 3., 2014, Delmiro Gouveia. Anais... Delmiro Gouveia: UFLA, Campus do Sertão, 2014. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 169. | | SANTOS, W. de O.; ESPÍNOLA SOBRINHO, j.; MEDEIROS, J. F. de; MOURA, M. S. B. de; NUNES, R. L. C. Coeficientes de cultivo e necessidades hídricas da cultura do milho verde nas condições do Semiárido brasileiro. Irriga, Botucatu, v. 19, n. 4, p. 559-572, out./dez. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Semiárido. |
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| 170. | | BARROS, J. P. A.; SOUZA, L. S. B.; MOURA, M. S. B. de; SILVA, T. G. F.; ARAUJO, Y. P. Comparação de métodos para determinação da temperatura do ar média em Petrolina, PE. In: SIMPÓSIO NACIONAL DE ESTUDOS PARA PRODUÇÃO VEGETAL NO SEMIÁRIDO, 2., 2016, Triunfo / Serra Talhada. Pesquisas e estratégias para viabilizar produção agrícola no Semiárido. Serra Talhada: UFRPE: UAST, 2016. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 172. | | BRANDÃO. E. O.; MOURA, M. S. B. de; SOARES, J. M.; SOUZA, L. S. B.; SILVA, T. G. F. da. Cobertura plástica da videira: evolução do crescimento de ramos e cachos e da área foliar no Submédio São Francisco. In: CONGRESSO BRASILEIRO DE ENGENHARIA AGRICOLA, 38., 2009, Juazeiro, Petrolina. Planejamento da bacia hidrográfica e o desenvolvimento da agricultura: anais. Juazeiro, Petrolina: UNIVASF: Embrapa Semiárido: CEFET: SBEA, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Semiárido. |
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| 174. | | BATISTA, D. da C.; BARBOSA, M. A. G.; MOURA, M. S. B. de; ANJOS, J. B. dos. Dinâmica de inóculos e doenças em videira sob sistema convencional e protegido. Revista Caatinga, Mossoró, v. 28, n. 2, p. 256-262, abr./jun., 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Semiárido. |
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| 180. | | CARVALHO, H. F. S.; MOURA, M. S. B. de; SILVA, T. G. F.; SILVA, G. D.; OLIVEIRA, L. D. S. Sazonalidade dos componentes do balanço de radiação em canavial irrigado. In: CONGRESSO BRASILEIRO DE METEOROLOGIA, 19., 2016, João Pessoa. Meteorologia: tempo, água e energia. João Pessoa: Sociedade Brasileira de Meteorologia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 417 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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