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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
21/05/2021 |
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Data da última atualização: |
02/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATOS, M.; CLARO, F. C.; LIMA, T. A. M.; AVELINO, F.; HANSEL, F. A.; MACIEL, G. M.; LOMONACO, D.; MAGALHAES, W. L. E. |
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Afiliação: |
MAILSON MATOS, UNIVERSIDADE FEDERAL DO PARANA; FRANCINE C. CLARO, UNIVERSIDADE FEDERAL DO PARANA; TIELIDY A. M. LIMA, ATHLONE INSTITUTE OF TECHNOLOGY, IRELAND; FRANCISCO AVELINO, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ; FABRICIO AUGUSTO HANSEL, CNPF; GISELLE M. MACIEL, UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ; DIEGO LOMONACO, UNIVERSIDADE FEDERAL DO CEARA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
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Título: |
Acetone: water fractionation of pyrolytic lignin improves its antioxidant and antibacterial activity. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Analytical and Applied Pyrolysis, v. 156, 105175, 2021. |
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DOI: |
https://doi.org/10.1016/j.jaap.2021.105175 |
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Idioma: |
Inglês |
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Conteúdo: |
Pyrolytic lignin is the water-insoluble fraction of the bio-oil from rapid pyrolysis. The separation of pyrolytic lignin can improve the extraction of monophenols. Studies reveal the efficacy of phenolic aromatic compounds derived from lignin as antioxidants and as antimicrobials. In this study, we used aqueous acetone solutions to improve the fractionation of eucalypt pyrolytic lignin. Experiments to obtain the pyrolytic lignin were carried out based on a central composite factorial design, and the characterizations were performed by GPC, NMR, FTIR, TGA, GC?MS, antioxidant assays, and antibacterial activity analysis. The most soluble fraction resulted in a more homogeneous fraction, concentrating phenolic, carboxylic, and lower molecular weight compounds. The antioxidant activity was mainly attributed to phenolic compounds with methoxy substituents. Pyrolytic lignin fractions also showed antimicrobial action against Staphylococcus aureus and Escherichia coli. |
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Palavras-Chave: |
Antioxidant; Phenolic compound. |
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Thesagro: |
Acetona; Lignina. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 01771naa a2200265 a 4500
001 2131936
005 2021-06-02
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jaap.2021.105175$2DOI
100 1 $aMATOS, M.
245 $aAcetone$bwater fractionation of pyrolytic lignin improves its antioxidant and antibacterial activity.$h[electronic resource]
260 $c2021
520 $aPyrolytic lignin is the water-insoluble fraction of the bio-oil from rapid pyrolysis. The separation of pyrolytic lignin can improve the extraction of monophenols. Studies reveal the efficacy of phenolic aromatic compounds derived from lignin as antioxidants and as antimicrobials. In this study, we used aqueous acetone solutions to improve the fractionation of eucalypt pyrolytic lignin. Experiments to obtain the pyrolytic lignin were carried out based on a central composite factorial design, and the characterizations were performed by GPC, NMR, FTIR, TGA, GC?MS, antioxidant assays, and antibacterial activity analysis. The most soluble fraction resulted in a more homogeneous fraction, concentrating phenolic, carboxylic, and lower molecular weight compounds. The antioxidant activity was mainly attributed to phenolic compounds with methoxy substituents. Pyrolytic lignin fractions also showed antimicrobial action against Staphylococcus aureus and Escherichia coli.
650 $aAcetona
650 $aLignina
653 $aAntioxidant
653 $aPhenolic compound
700 1 $aCLARO, F. C.
700 1 $aLIMA, T. A. M.
700 1 $aAVELINO, F.
700 1 $aHANSEL, F. A.
700 1 $aMACIEL, G. M.
700 1 $aLOMONACO, D.
700 1 $aMAGALHAES, W. L. E.
773 $tJournal of Analytical and Applied Pyrolysis$gv. 156, 105175, 2021.
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Embrapa Florestas (CNPF) |
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| Registros recuperados : 6 | |
| 1. |  | JUNQUEIRA, F. B.; MATTOSO, L. H. C.; MOREIRA, F. K. V. Propriedades mecânicas e anti-UV de plásticos de gelatina produzidos por casting contínuo. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p.60-63. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 2. | | ALVES, N. G.; ASCARI, I. J.; JASMIN, J.; QUINTAO, C. C. R.; SOUZA, J. F.; TORRES, G.; JUNQUEIRA, F. B.; SILVA, D. R.; CAMPOS, J. P. A.; FARIA, L. R.; PAULA, F. A. De P.; CAMARGO, L. S. de A. Effect of insulin-like growth factor-l on embryo quality of bovine oocytes subjected to theat shock In: INTERNATIONAL CONGRESS ON ANIMAL REPRODUCTION, 18., 2016, Tours. Abstracts... Tours: Society for Reproductive Biology, 2016. p. 247-248.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | JUNQUEIRA, F. B.; ALVES, N. G.; ASCARI, I. J.; SILVA, D. R.; CAMPOS, J. P. A.; FARIA, L. R.; LIMA, R. R. de; SOUZA, J. C.; PAULA, F. A. P.; FONSECA, J. F. da. Restricted intake and lipid inclusion: effects on ovarian follicular development in Santa Inês ewe lambs. Animal Reproduction, v. 13, n. 3, p. 522, Jul./Sept. 2016. Proceedings of the 30th Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Foz do Iguaçu, PR, Brazil, August 25th to 27th, 2016, and 32nd Meeting of the European Embryo Transfer Association (AETE); Barcelona, Spain,...| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 4. | | ALVES, N. G.; JUNQUEIRA, F. B.; ASCARI, I. J.; SOUZA, J. C.; CAMPOS, J. P. A.; FARIA, L. R.; SILVA, D. R.; PAULA, F. A. P.; LIMA, R. R. de; FONSECA, J. F. da. Restricted intake and lipid inclusion in Santa Inês ewe lambs diet: age, weight and progesterone concentration at first ovulation. Animal Reproduction, v. 13, n. 3, p. 521, Jul./Sept. 2016. Proceedings of the 30th Annual Meeting of the Brazilian Embryo Technology Society (SBTE); Foz do Iguaçu, PR, Brazil, August 25th to 27th, 2016, and 32nd Meeting of the European Embryo Transfer Association (AETE); Barcelona, Spain,...| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 5. | | ACARI, I. J.; ALVES, N. G.; JASMIN, J.; QUINTAO, C. C. R.; SOUZA, J. F.; TORRES, G.; GONÇALVES, F.; JUNQUEIRA, F. B.; SILVA, D. R.; CAMPOS, J. P. A.; FARIA, L. R.; PAULA, F. A. De P.; CAMARGO, L. S. de A. Antioxidant effects of IGF-I on bovine oocytes subjected to heat shock In: INTERNATIONAL CONGRESS ON ANIMAL REPRODUCTION, 18., 2016, Tours. Abstracts... Tours: Society for Reproductive Biology, 2016. p. 246-247.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | ALVES, N. G.; ASCARI, I. J.; ALVES, A. C.; LIMA, R. R.; GARCIA, I. F. F.; PÉREZ, J. R. O.; JUNQUEIRA, F. B.; FERNANDES, V. P.; VIEIRA, J. A.; MACIEL, L. F. S.; FONSECA, J. F. da; AZIANI, W. L. B.; CASTRO, T. R.; NEPPE, L. M. Different suckling regimens and return to postpartum cyclic ovarian activity in Santa Inês ewes. Reproduction, Fertility and Development, v. 25, n. 1, p. 157-158. Proceedings of the Annual Conference of the International Embryo Transfer Society, Hannover, Germany, 19-22 January, 2013. Papers and Abstracts for Poster Presentation.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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