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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão; Embrapa Arroz e Feijão. |
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Data corrente: |
20/09/2010 |
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Data da última atualização: |
21/09/2010 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARVALHO, M. da C. S.; FERREIRA, A. C. de B. |
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Afiliação: |
MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; ALEXANDRE CUNHA DE B FERREIRA, CNPA. |
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Título: |
Adubação nitrogenada na sucessão braquiária-algodão em sistema plantio direto no Cerrado: safra 2008/2009. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2010. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Notas: |
FertBio 2010. |
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Conteúdo: |
O objetivo do presente trabalho foi avaliar a eficiência da antecipação de parte ou do total da adubação nitrogenada de cobertura do algodoeiro para a braquiária na sucessão braquiária-algodão, em sistema de integração lavoura-pecuária, comparando-se uréia comum com uréia mais inibidor de urease ou uréia recoberta com polímero de liberação controlada. |
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Palavras-Chave: |
Fertilizante de liberação controlada; Inibidor de nitrificação; Inibidor de urease. |
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Thesagro: |
Algodão; Brachiaria Ruziziensis; Cerrado; Fertilizante Nitrogenado; Nitrificação; Plantio Direto; Uréase. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/19162/1/1601.pdf
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Marc: |
LEADER 01522naa a2200277 a 4500
001 1862568
005 2010-09-21
008 2010 bl uuuu u00u1 u #d
100 1 $aCARVALHO, M. da C. S.
245 $aAdubação nitrogenada na sucessão braquiária-algodão em sistema plantio direto no Cerrado$bsafra 2008/2009.
260 $c2010
300 $c1 CD-ROM.
500 $aFertBio 2010.
520 $aO objetivo do presente trabalho foi avaliar a eficiência da antecipação de parte ou do total da adubação nitrogenada de cobertura do algodoeiro para a braquiária na sucessão braquiária-algodão, em sistema de integração lavoura-pecuária, comparando-se uréia comum com uréia mais inibidor de urease ou uréia recoberta com polímero de liberação controlada.
650 $aAlgodão
650 $aBrachiaria Ruziziensis
650 $aCerrado
650 $aFertilizante Nitrogenado
650 $aNitrificação
650 $aPlantio Direto
650 $aUréase
653 $aFertilizante de liberação controlada
653 $aInibidor de nitrificação
653 $aInibidor de urease
700 1 $aFERREIRA, A. C. de B.
773 $tIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2010.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/03/2022 |
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Data da última atualização: |
24/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
COUTINHO, T. C.; MALAFATTI, J. O. D.; PARIS, E. C.; TARDIOLI, P. W.; FARINAS, C. S. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA; CRISTIANE SANCHEZ FARINAS, CNPDIA. |
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Título: |
Hydroxyapatite-CoFe2O4 magnetic nanoparticle composites for industrial enzyme immobilization, use, and recovery. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
ACS Applied Nano Materials, v. 3, 2020. |
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Páginas: |
12334–12345 |
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DOI: |
https://dx.doi.org/10.1021/acsanm.0c02811 |
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Idioma: |
Inglês |
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Conteúdo: |
Hydroxyapatite (HA) is an inorganic material with high ability to interact with proteins and has been recently explored as a support for enzymeimmobilization. However, there are still some drawbacks concerning the recovery of these biocatalysts, which could be overcome using magnetic supports. Cobalt ferrite(CoFe2O4) is a purely magnetic material, which offers excellent chemical stability, ease of synthesis, and mechanical hardness, being a promising candidate to form composites with HA and produce magnetic HA nanoparticles. Therefore, investigation of synthesis procedures and applications of HA/CoFe2O4 composites to facilitate enzyme recovery by means of a magnetic field could find interest in a broad spectrum of biotechnological processes. Here, the co-precipitation method was used to synthesize HA/CoFe2O4 composites with different HA/CoFe2O4 mass ratios, for application as supports for enzyme immobilization. The enzymes β-glucosidase, phytase, and xylanase were selected for proof of concept due to their wide range of industrial applications. The composite with the highest cobalt ferrite content (2:1 mass ratio) was highly effective for immobilization of the three different enzymes, with immobilization yields (IYs) of 70−100% and recovered activities of 78−100%. The biocatalysts could be easily recovered from the reaction media by both centrifugation and application of an external magnetic field,demonstrating their potential for use in industrial processes. The materials exhibited good reusability, especially in the case of the βglucosidase biocatalyst, which could be reused 10 times, maintaining MenosHydroxyapatite (HA) is an inorganic material with high ability to interact with proteins and has been recently explored as a support for enzymeimmobilization. However, there are still some drawbacks concerning the recovery of these biocatalysts, which could be overcome using magnetic supports. Cobalt ferrite(CoFe2O4) is a purely magnetic material, which offers excellent chemical stability, ease of synthesis, and mechanical hardness, being a promising candidate to form composites with HA and produce magnetic HA nanoparticles. Therefore, investigation of synthesis procedures and applications of HA/CoFe2O4 composites to facilitate enzyme recovery by means of a magnetic field could find interest in a broad spectrum of biotechnological processes. Here, the co-precipitation method was used to synthesize HA/CoFe2O4 composites with different HA/CoFe2O4 mass ratios, for application as supports for enzyme immobilization. The enzymes β-glucosidase, phytase, and xylanase were selected for proof of concept due to their wide range of industrial applications. The composite with the highest cobalt ferrite content (2:1 mass ratio) was highly effective for immobilization of the three different enzymes, with immobilization yields (IYs) of 70−100% and recovered activities of 78−100%. The biocatalysts could be easily recovered from the reaction media by both centrifugation and application of an external magnetic field,demonstrating their potential for use in industrial processes... Mostrar Tudo |
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Palavras-Chave: |
Cobalt ferrite; Immobilization; Magnetic nanoparticles. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02369naa a2200229 a 4500
001 2141192
005 2024-01-24
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://dx.doi.org/10.1021/acsanm.0c02811$2DOI
100 1 $aCOUTINHO, T. C.
245 $aHydroxyapatite-CoFe2O4 magnetic nanoparticle composites for industrial enzyme immobilization, use, and recovery.$h[electronic resource]
260 $c2022
300 $a12334–12345
520 $aHydroxyapatite (HA) is an inorganic material with high ability to interact with proteins and has been recently explored as a support for enzymeimmobilization. However, there are still some drawbacks concerning the recovery of these biocatalysts, which could be overcome using magnetic supports. Cobalt ferrite(CoFe2O4) is a purely magnetic material, which offers excellent chemical stability, ease of synthesis, and mechanical hardness, being a promising candidate to form composites with HA and produce magnetic HA nanoparticles. Therefore, investigation of synthesis procedures and applications of HA/CoFe2O4 composites to facilitate enzyme recovery by means of a magnetic field could find interest in a broad spectrum of biotechnological processes. Here, the co-precipitation method was used to synthesize HA/CoFe2O4 composites with different HA/CoFe2O4 mass ratios, for application as supports for enzyme immobilization. The enzymes β-glucosidase, phytase, and xylanase were selected for proof of concept due to their wide range of industrial applications. The composite with the highest cobalt ferrite content (2:1 mass ratio) was highly effective for immobilization of the three different enzymes, with immobilization yields (IYs) of 70−100% and recovered activities of 78−100%. The biocatalysts could be easily recovered from the reaction media by both centrifugation and application of an external magnetic field,demonstrating their potential for use in industrial processes. The materials exhibited good reusability, especially in the case of the βglucosidase biocatalyst, which could be reused 10 times, maintaining
653 $aCobalt ferrite
653 $aImmobilization
653 $aMagnetic nanoparticles
700 1 $aMALAFATTI, J. O. D.
700 1 $aPARIS, E. C.
700 1 $aTARDIOLI, P. W.
700 1 $aFARINAS, C. S.
773 $tACS Applied Nano Materials$gv. 3, 2020.
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Embrapa Instrumentação (CNPDIA) |
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