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Registros recuperados : 133 | |
101. | | HELM, C. V.; LIMA, E. A. de; BOZA, A. P. O.; PINTO, F. de S.; TERZI, S. da C.; COURI, S. Avaliação de basidiomicetos do gênero Ganoderma quanto ao potencial de síntese de enzimas lignocelulolíticas. In: CONGRESSO BRASILEIRO SOBRE FLORESTAS ENERGÉTICAS, 1., 2009, Belo Horizonte. Anais... Colombo: Embrapa Florestas, 2009. 1 CD-ROM. (Embrapa Florestas. Documentos, 178). Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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102. | | HELM, C. V.; LIMA, E. A. de; BOZA, A. P. O.; PINTO, F. de S.; TERZI, S. da C.; COURI, S. Avaliação de basidiomicetos do gênero Ganoderma quanto ao potencial de síntese de enzimas lignocelulolíticas. In: CONGRESSO BRASILEIRO SOBRE FLORESTAS ENERGÉTICAS, 1., 2009, Belo Horizonte. Anais. Colombo: Embrapa Florestas, 2009. 1 CD-ROM. (Embrapa Florestas. Documentos, 178). Seção: Derivados Energéticos de Alto Valor Agregado. Biblioteca(s): Embrapa Florestas. |
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103. | | NEITZEL, T.; TAVARES, L. B. B.; ORTIZ, M.; SILVA, P. R.; HELM, C. V.; LIMA, E. A. de; MAGALHAES, W. L. E. Análise da cinética de mutiplicação e de viabilidade de leveduras produtoras de etanol. Dynamis Revista Tecno-Científica, Blumenau, v. 17, n. 1, p. 72, 2011. Edição dos resumos da 5ª Mostra Integrada de Ensino, Pesquisa e Extensão, Blumenau, 2011. Biblioteca(s): Embrapa Florestas. |
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104. | | JUNQUEIRA, R. M.; RIBAS, R. G. T.; LIMA, E. A. de; OLIVEIRA, F. L. de; GUERRA, J, G. M.; RIBEIRO, R. de L. D.; BUSQUET, R. N. B. Influência da cobertura viva permanentes de solo com leguminosa perene e da polinização artificial na qualidade e produtividade da pinha sob manejo orgânico. Seropédica: Embrapa Agrobiologia, 2002. 1 p. Trabalho apresentado no FERTBIO 2002, Rio de Janeiro/RJ, 2002. Biblioteca(s): Embrapa Agrobiologia. |
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105. | | NUNES, H. C. A.; BACHMANN, V.; LIMA, E. A. de; HELM, C. V.; MAGALHAES, W. L. E.; SILVA, P. R.; TAVARES, L. B. B. Produção de xilanases e celulases por macrofungos. In: CONGRESSO INTERNACIONAL DE BIOENERGIA, 6., 2011, Curitiba. Anais. Curitiba: REMADE, 2011. 1 CD-ROM. Poster. Biblioteca(s): Embrapa Florestas. |
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106. | | BACHMANN, V.; TAVARES, L. B. B.; NUNES, H. C. A.; LOZANO, L. M. dos S.; LIMA, E. A. de; HELM, C. V. Produção de celulases por basidiomicetos. Dynamis Revista Tecno-Científica, Blumenau, v. 17, n. 1, p. 68, 2011. Edição dos resumos da 5ª Mostra Integrada de Ensino, Pesquisa e Extensão, Blumenau, 2011. Biblioteca(s): Embrapa Florestas. |
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110. | | PATEIS, V. de O.; LIMA, J. de B.; HELM, C. V.; LIMA, E. A. de; COSTA, M. A. F.; BRACHT, A.; PERALTA, R. M. Bioprospecção de fungos filamentosos produtores de lacases. In: SEMINÁRIO BRASILEIRO DE TECNOLOGIA ENZIMÁTICA, 10., 2012, Blumenau. Livro de resumos. Blumenau: FURB, 2012. CD-ROM. Biblioteca(s): Embrapa Florestas. |
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111. | | LIMA, E. A. de; REGO, E. C. S.; COTTA, M. G.; COSTA, T. S.; CARNEIRO, F. A.; CARNEIRO, R. M. D. G.; MARRACCINI, P.; ANDRADE, A. C. Differential expression of candidate genes to resistance Tomeloidogyne paranaensis in clones of Coffea canephora. In: INTERNATIONAL CONFERENCE ON COFFE SCIENCE, 26., 2016, China. The programm & abstrcets... China: Asic, 2016. p. 185. Biblioteca(s): Embrapa Café. |
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113. | | SÁ, F. P. de; BELNIAKI, A. C.; PANOBIANCO, M.; GABIRA, M. M.; KRATZ, D.; LIMA, E. A. de; WENDLING, I.; MAGALHAES, W. L. E. Peach palm residue compost as substrate for Bactris gasipaes self-sustaining seedlings production. International Journal of Recycling of Organic Waste in Agriculture, v. 9, n. 2, p. 183-192, 2020. Biblioteca(s): Embrapa Florestas. |
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114. | | ORTIZ, M.; NEITZEL, T.; SILVA, P. R.; HELM, C. V.; MAGALHAES, W. L. E.; LIMA, E. A. de; TAVARES, L. B. B. Estudo da viabilidade e do crescimento de leveduras produtoras de etanol. In: CONGRESSO INTERNACIONAL DE BIOENERGIA, 6., 2011, Curitiba. Anais. Curitiba: REMADE, 2011. 1 CD-ROM. Resumo expandido. Biblioteca(s): Embrapa Florestas. |
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115. | | ZANONI, P. R. S.; SILVEIRA, A. C. da; LIMA, E. A. de; MATTOS, P. P. de; CURTO, R. de A.; MAGALHAES, W. L. E.; LAZZAROTTO, M. Uso dos produtos da araucária: madeira e coprodutos. In: SOUSA, V. A. de; FRITZSONS, E.; PINTO JUNIOR, J. E.; AGUIAR, A. V. de (ed.). Araucária: pesquisa e desenvolvimento no Brasil. Brasília, DF: Embrapa, 2021. cap. 17, p. 337-360. Biblioteca(s): Embrapa Florestas. |
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116. | | PASKO, R. Z.; TIMM, T. G.; LIMA, G. G. de; HELM, C. V.; LIMA, E. A. de; HENRIQUES, G. S.; TAVARES, L. B. B. In vivo evaluation and nutritional quality of by-products subjected to solid-state fermentation using shiitake culinary-medicinal mushroom, Lentinula edodes (Agaricomycetes). International Journal of Medicinal Mushrooms, v. 24, n. 1, p. 53-66, 2022. Biblioteca(s): Embrapa Florestas. |
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117. | | LIMA, E. A. de; FURLANETTO, C.; SOUSA, M. G.; MENEZES, A. C. M.; SOUSA, F. R. de; ALMEIDA, M. R. A.; SERGIO JÚNIOR, A.; FERRAO, M. A. G.; CARNEIRO, R. M. D. G. Resistência multipla e resposta de hiperasensibilidade do cafeeiro 'Conilon 14' a Meloidogyne ssp. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 8., 2013, Salvador. Sustentabilidade e inclusão Social. Brasília, DF: Embrapa Café, 2013. Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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118. | | LIMA, E. A. de; FURLANETTO, C.; SOUSA, M. G.; MENEZES, A. C. M.; SOUSA, F. R. de; ALMEIDA, M. R. A.; SERGIO JÚNIOR, A.; FERRAO, M. A. G.; CARNEIRO, R. M. D. G. Resistência multipla e resposta de hiperasensibilidade do cafeeiro 'Conilon 14' a Meloidogyne ssp. In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 8., 2013, Salvador. Sustentabilidade e inclusão Social. Brasília, DF: Embrapa Café, 2013. Biblioteca(s): Embrapa Café. |
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119. | | ANDERSEN, S. L. F.; CASTOLDI, R.; GARCIA, J. A. A.; BRACHT, A.; PERALTA, R. A.; LIMA, E. A. de; HELM, C. V.; MOREIRA, R. de F. P. M.; PERALTA, R. M. Improving enzymatic saccharifcation of Eucalyptus grandis branches by ozone pretreatment. Wood Science and Technology, v. 53, n. 1, p. 49-69, Jan. 2019. Biblioteca(s): Embrapa Florestas. |
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120. | | VIEIRA, T. F.; CORRÊA, R. C. G.; MOREIRA, R. de F. P. M.; PERALTA, R. A.; LIMA, E. A. de; HELM, C. V.; GARCIA, J. A. A.; BRACHT, A.; PERALTA, R. M. Valorization of peach palm (Bactris gasipaes Kunth) waste: production of antioxidant xylooligosaccharides. Waste and Biomass Valorization, 2021. Publicado em 6 de maio de 2021. Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 133 | |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
13/05/2024 |
Data da última atualização: |
13/05/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 4 |
Autoria: |
DIAS, I. A.; HORTA, R. P.; MATOS, M.; HELM, C. V.; MAGALHAES, W. L. E.; LIMA, E. A. de; SILVA, B. J. G. da; MUNIZ, G. I. B. de; CADEMARTORI, P. H. G. de. |
Afiliação: |
IVANA AMORIM DIAS, UNIVERSIDADE FEDERAL DO PARANÁ; RAYTA PAIM HORTA, UNIVERSIDADE FEDERAL DO PARANÁ; MAILSON MATOS, UNIVERSIDADE FEDERAL DO PARANÁ; CRISTIANE VIEIRA HELM, CNPF; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; EDSON ALVES DE LIMA, CNPF; BRUNO JOSÉ GONÇALVES DA SILVA, UNIVERSIDADE FEDERAL DO PARANÁ; GRACIELA INES BOLZON DE MUNIZ, UNIVERSIDADE FEDERAL DO PARANÁ; PEDRO HENRIQUE GONZALEZ DE CADEMARTORI, UNIVERSIDADE FEDERAL DO PARANÁ. |
Título: |
Exploring the antioxidant and antimicrobial properties of the water-soluble fraction derived from pyrolytic lignin separation in fast-pyrolysis bio-oil. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Biomass Conversion and Biorefinery, p. 1-12, 2023. |
DOI: |
http://dx.doi.org/10.1007/s13399-023-04561-7 |
Idioma: |
Inglês |
Notas: |
Online first. |
Conteúdo: |
Improving key biomass functionalities necessitates effective liquid-liquid fractionation methods for heavy bio-oil. Here, fast-pyrolysis bio-oil derived from eucalypt wood was fractionated in cold water to separate insoluble and water-soluble fractions. We focus on the water-soluble fraction, a promising renewable source of chemicals with potential antioxidant and antimicrobial approaches. Fast-pyrolysis bio-oil was fractionated in three oil-to-water ratios, 1:100, 1:50, and 1:35, separating the pyrolytic lignin and producing water-soluble fractions as byproducts. The water-soluble fractions were analytically investigated through physicochemical properties, chemical composition by chromatography, phenolic content, antioxidant activity, antimicrobial activity, and their storage stability. Higher water content in the pyrolytic lignin separation resulted in higher yield and higher molecular weight compounds concentration in the water-soluble fractions, with the presence of highvalue- added chemicals, such as catechol, vanillin, and levoglucosan. Levoglucosan was the dominant chemical identified in the water-soluble fractions, notably for the 1:50 oil-to-water ratio. These remarkable chemicals and a high phenolic content contribute to both high antioxidant and antimicrobial activities. Despite the low concentration, all water-soluble fractions exhibited intense inhibition of Trametes versicolor and Gloeophyllum trabeum fungi. The fraction 1:50 completely inhibited the fungal activity. Both 1:100 and 1:50 fractions showed antibacterial activity for Escherichia coli and Staphylococcus aureus. Regardless of the oil-to-water ratio, water-soluble fractions exhibited a relative storage chemical stability under accelerated aging conditions for 43 days. Therefore, water-soluble fractions of fast-pyrolysis bio-oil derived from a simple method to separate pyrolytic lignin are functional materials with remarkable antioxidant and antimicrobial properties and, hence, upgrading bio-oil based on their functionalities. MenosImproving key biomass functionalities necessitates effective liquid-liquid fractionation methods for heavy bio-oil. Here, fast-pyrolysis bio-oil derived from eucalypt wood was fractionated in cold water to separate insoluble and water-soluble fractions. We focus on the water-soluble fraction, a promising renewable source of chemicals with potential antioxidant and antimicrobial approaches. Fast-pyrolysis bio-oil was fractionated in three oil-to-water ratios, 1:100, 1:50, and 1:35, separating the pyrolytic lignin and producing water-soluble fractions as byproducts. The water-soluble fractions were analytically investigated through physicochemical properties, chemical composition by chromatography, phenolic content, antioxidant activity, antimicrobial activity, and their storage stability. Higher water content in the pyrolytic lignin separation resulted in higher yield and higher molecular weight compounds concentration in the water-soluble fractions, with the presence of highvalue- added chemicals, such as catechol, vanillin, and levoglucosan. Levoglucosan was the dominant chemical identified in the water-soluble fractions, notably for the 1:50 oil-to-water ratio. These remarkable chemicals and a high phenolic content contribute to both high antioxidant and antimicrobial activities. Despite the low concentration, all water-soluble fractions exhibited intense inhibition of Trametes versicolor and Gloeophyllum trabeum fungi. The fraction 1:50 completely inhibited the fungal act... Mostrar Tudo |
Palavras-Chave: |
Antimicrobial potential; Aqueous fraction; Levoglucosan; Storage stability. |
Thesaurus NAL: |
Antioxidant activity; Phenolic compounds. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 03046naa a2200313 a 4500 001 2164243 005 2024-05-13 008 2023 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1007/s13399-023-04561-7$2DOI 100 1 $aDIAS, I. A. 245 $aExploring the antioxidant and antimicrobial properties of the water-soluble fraction derived from pyrolytic lignin separation in fast-pyrolysis bio-oil.$h[electronic resource] 260 $c2023 500 $aOnline first. 520 $aImproving key biomass functionalities necessitates effective liquid-liquid fractionation methods for heavy bio-oil. Here, fast-pyrolysis bio-oil derived from eucalypt wood was fractionated in cold water to separate insoluble and water-soluble fractions. We focus on the water-soluble fraction, a promising renewable source of chemicals with potential antioxidant and antimicrobial approaches. Fast-pyrolysis bio-oil was fractionated in three oil-to-water ratios, 1:100, 1:50, and 1:35, separating the pyrolytic lignin and producing water-soluble fractions as byproducts. The water-soluble fractions were analytically investigated through physicochemical properties, chemical composition by chromatography, phenolic content, antioxidant activity, antimicrobial activity, and their storage stability. Higher water content in the pyrolytic lignin separation resulted in higher yield and higher molecular weight compounds concentration in the water-soluble fractions, with the presence of highvalue- added chemicals, such as catechol, vanillin, and levoglucosan. Levoglucosan was the dominant chemical identified in the water-soluble fractions, notably for the 1:50 oil-to-water ratio. These remarkable chemicals and a high phenolic content contribute to both high antioxidant and antimicrobial activities. Despite the low concentration, all water-soluble fractions exhibited intense inhibition of Trametes versicolor and Gloeophyllum trabeum fungi. The fraction 1:50 completely inhibited the fungal activity. Both 1:100 and 1:50 fractions showed antibacterial activity for Escherichia coli and Staphylococcus aureus. Regardless of the oil-to-water ratio, water-soluble fractions exhibited a relative storage chemical stability under accelerated aging conditions for 43 days. Therefore, water-soluble fractions of fast-pyrolysis bio-oil derived from a simple method to separate pyrolytic lignin are functional materials with remarkable antioxidant and antimicrobial properties and, hence, upgrading bio-oil based on their functionalities. 650 $aAntioxidant activity 650 $aPhenolic compounds 653 $aAntimicrobial potential 653 $aAqueous fraction 653 $aLevoglucosan 653 $aStorage stability 700 1 $aHORTA, R. P. 700 1 $aMATOS, M. 700 1 $aHELM, C. V. 700 1 $aMAGALHAES, W. L. E. 700 1 $aLIMA, E. A. de 700 1 $aSILVA, B. J. G. da 700 1 $aMUNIZ, G. I. B. de 700 1 $aCADEMARTORI, P. H. G. de 773 $tBiomass Conversion and Biorefinery, p. 1-12, 2023.
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