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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
12/01/1999 |
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Data da última atualização: |
29/06/2007 |
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Autoria: |
KLAUSNER, S. D.; SUHET, A. R.; DUXBURY, J. M. |
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Título: |
Estimating nitrogen mineralization in a "cerrado" dark-red latosol by laboratory incubation, and the effect of soil sample disturbance. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.25, n.4, p.617-623, 1990. |
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Idioma: |
Inglês |
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Conteúdo: |
Four dark-red latosols (Haplustox) were sampled at or near the "Centro de Pesquisa Agropecuaria dos Cerrados- CPAC - (Cerrados Agricultural Research Center), in Planaltina, DF, Brazil. A laboratory soil incubation study, at 35C and 0.25 bar water tension, was conducted to evaluate the effect of soil disturbance on N mineralization and to determine the suitability of an incubation procedure for estimating N mineralization in the field. Mineralization rates ranged from ranged 1,2 to 8,8 kg N ha wk over a twelve-week period. The data suggested that as long as is some degree soil aggregation, soil disturbance had no effect on mineralization. The amount of N mineralized during the incubation period in the laboratory showed a low a correlation with the N mineralization in the field. |
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Palavras-Chave: |
Dark-red latosol; Latossolo vermelho-escruro. |
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Thesagro: |
Cerrado; Mineralização; Nitrogênio; Solo. |
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Thesaurus Nal: |
Ferralsols; mineralization; nitrogen; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01564naa a2200265 a 4500
001 1544509
005 2007-06-29
008 1990 bl --- 0-- u #d
100 1 $aKLAUSNER, S. D.
245 $aEstimating nitrogen mineralization in a "cerrado" dark-red latosol by laboratory incubation, and the effect of soil sample disturbance.
260 $c1990
520 $aFour dark-red latosols (Haplustox) were sampled at or near the "Centro de Pesquisa Agropecuaria dos Cerrados- CPAC - (Cerrados Agricultural Research Center), in Planaltina, DF, Brazil. A laboratory soil incubation study, at 35C and 0.25 bar water tension, was conducted to evaluate the effect of soil disturbance on N mineralization and to determine the suitability of an incubation procedure for estimating N mineralization in the field. Mineralization rates ranged from ranged 1,2 to 8,8 kg N ha wk over a twelve-week period. The data suggested that as long as is some degree soil aggregation, soil disturbance had no effect on mineralization. The amount of N mineralized during the incubation period in the laboratory showed a low a correlation with the N mineralization in the field.
650 $aFerralsols
650 $amineralization
650 $anitrogen
650 $asoil
650 $aCerrado
650 $aMineralização
650 $aNitrogênio
650 $aSolo
653 $aDark-red latosol
653 $aLatossolo vermelho-escruro
700 1 $aSUHET, A. R.
700 1 $aDUXBURY, J. M.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.25, n.4, p.617-623, 1990.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
21/02/2024 |
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Data da última atualização: |
21/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
ANTUNES, K. A.; MONTEIRO, L. M.; HOWARD, C.; REICH, E.; HEIDEN, G.; GUARINO, E. de S. G.; SANTOS, V. L. P. DOS; MANFRON, J.; PERERA, W. H. |
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Afiliação: |
KEVIN ALVES ANTUNES, UNIVERSIDADE ESTADUAL DE PONTA GROSSA; LUCIANE MENDES MONTEIRO, UNIVERSIDADE ESTADUAL DE PONTA GROSSA; CHRISTOPHER HOWARD, CAMAG SCIENTIFIC; EIKE REICH, HPTLC ASSOCIATION; GUSTAVO HEIDEN, CPACT; ERNESTINO DE SOUZA GOMES GUARINO, CPACT; VERA LÚCIA PEREIRA DOS SANTOS, CENTRO UNIVERSITÁRIO INTERNACIONAL UNINTER; JANE MANFRON, UNIVERSIDADE ESTADUAL DE PONTA GROSSA; WILMER H. PERERA, CAMAG SCIENTIFIC. |
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Título: |
Comprehensive high-performance thin-layer chromatography analysis of Monteverdia ilicifolia leaf and its adulter ants. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Natural Product Research, Formerly Natural Product Letters, 2023. |
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ISSN: |
1478-6427 |
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DOI: |
https://doi.org/10.1080/14786419.2023.2289080 |
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Idioma: |
Inglês |
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Conteúdo: |
The leaves of Monteverdia ilicifolia (syn. Maytenus ilicifolia) are widely used in traditional South American medicine to treat gastrointestinal problems such as gastritis and ulcers. Several herbal products containing the leaves of M. ilicifolia can be found in the market. However, other species with similar leaf morphology are confounding materials, e.g. Monteverdia aquifolia (Celastraceae), Citronella gongonha (Cardiopteridaceae), Jodina rhombifolia (Santalaceae), Sorocea bonplandii (Moraceae) and Zollernia ilicifolia (Fabaceae). This study aimed to identify M. ilicifolia and distinguish it from its potential adulterants using high-performance thin-layer chromatography (HPTLC) technique. Comprehensive HPTLC analysis revealed specific fingerprints that can be used to assess the minimum content of epicatechin and the quality of commercial espinheira-santa samples. The results of the study demonstrated that the HPTLC method is capable of detecting adulterations and distinguishing M. ilicifolia from all confounding materials in commercial products available on the market, showing that most of the products are of poor quality due to adulterations. |
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Palavras-Chave: |
Monteverdia ilicifolia. |
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Thesagro: |
Cromatografia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162155/1/Artigo-Comprehensive-high-performance-thin-layer-chromatography.pdf
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Marc: |
LEADER 02000naa a2200265 a 4500
001 2162155
005 2024-02-21
008 2023 bl uuuu u00u1 u #d
022 $a1478-6427
024 7 $ahttps://doi.org/10.1080/14786419.2023.2289080$2DOI
100 1 $aANTUNES, K. A.
245 $aComprehensive high-performance thin-layer chromatography analysis of Monteverdia ilicifolia leaf and its adulter ants.$h[electronic resource]
260 $c2023
520 $aThe leaves of Monteverdia ilicifolia (syn. Maytenus ilicifolia) are widely used in traditional South American medicine to treat gastrointestinal problems such as gastritis and ulcers. Several herbal products containing the leaves of M. ilicifolia can be found in the market. However, other species with similar leaf morphology are confounding materials, e.g. Monteverdia aquifolia (Celastraceae), Citronella gongonha (Cardiopteridaceae), Jodina rhombifolia (Santalaceae), Sorocea bonplandii (Moraceae) and Zollernia ilicifolia (Fabaceae). This study aimed to identify M. ilicifolia and distinguish it from its potential adulterants using high-performance thin-layer chromatography (HPTLC) technique. Comprehensive HPTLC analysis revealed specific fingerprints that can be used to assess the minimum content of epicatechin and the quality of commercial espinheira-santa samples. The results of the study demonstrated that the HPTLC method is capable of detecting adulterations and distinguishing M. ilicifolia from all confounding materials in commercial products available on the market, showing that most of the products are of poor quality due to adulterations.
650 $aCromatografia
653 $aMonteverdia ilicifolia
700 1 $aMONTEIRO, L. M.
700 1 $aHOWARD, C.
700 1 $aREICH, E.
700 1 $aHEIDEN, G.
700 1 $aGUARINO, E. de S. G.
700 1 $aSANTOS, V. L. P. DOS
700 1 $aMANFRON, J.
700 1 $aPERERA, W. H.
773 $tNatural Product Research, Formerly Natural Product Letters, 2023.
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Embrapa Clima Temperado (CPACT) |
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