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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: |
13/05/2024 |
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Data da última atualização: |
13/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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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. |
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Título: |
Exploring the antioxidant and antimicrobial properties of the water-soluble fraction derived from pyrolytic lignin separation in fast-pyrolysis bio-oil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Biomass Conversion and Biorefinery, p. 1-12, 2023. |
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DOI: |
http://dx.doi.org/10.1007/s13399-023-04561-7 |
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Idioma: |
Inglês |
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Notas: |
Online first. |
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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 |
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Palavras-Chave: |
Antimicrobial potential; Aqueous fraction; Levoglucosan; Storage stability. |
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Thesaurus Nal: |
Antioxidant activity; Phenolic compounds. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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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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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
13/12/2021 |
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Data da última atualização: |
13/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
SANTOS, F. S.; SARAIVA, J. M. V.; ATROCH, A. L. |
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Afiliação: |
FRANCINEY SOUZA SANTOS, SEDUC/AM; JACI MARIA BILHALVA SARAIVA, Centro Regional do Sistema de Proteção da Amazônia; ANDRE LUIZ ATROCH, CPAA. |
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Título: |
Influência da precipitação pluvial na produtividade do guaraná no município de Maués, AM. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agrometeoros, Passo Fundo, v. 29, e026787, 2021. |
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DOI: |
http://dx.doi.org/10.31062/agrom.v29.e026787 |
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Idioma: |
Português |
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Conteúdo: |
A cultura do guaraná possui uma ligação cultural e econômica com a cidade de Maués, AM, sendo a principal fonte da economia do município e sua produtividade impacta positiva ou negativamente na economia da cidade. O objetivo deste trabalho foi analisar a influência da precipitação pluvial na produtividade do guaraná no período de 1984 a 2014, no município de Mau és, AM. A pesquisa foi baseada em estudos bibliográficos e na análise dos dados secundários: dados observados e estimados de precipitação e dados da produtividade do guaraná. |
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Thesagro: |
Guaraná; Paullinia Cupana; Produtividade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229038/1/26787-128747-1-PB.pdf
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Marc: |
LEADER 01166naa a2200193 a 4500
001 2137659
005 2021-12-13
008 2021 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.31062/agrom.v29.e026787$2DOI
100 1 $aSANTOS, F. S.
245 $aInfluência da precipitação pluvial na produtividade do guaraná no município de Maués, AM.$h[electronic resource]
260 $c2021
520 $aA cultura do guaraná possui uma ligação cultural e econômica com a cidade de Maués, AM, sendo a principal fonte da economia do município e sua produtividade impacta positiva ou negativamente na economia da cidade. O objetivo deste trabalho foi analisar a influência da precipitação pluvial na produtividade do guaraná no período de 1984 a 2014, no município de Mau és, AM. A pesquisa foi baseada em estudos bibliográficos e na análise dos dados secundários: dados observados e estimados de precipitação e dados da produtividade do guaraná.
650 $aGuaraná
650 $aPaullinia Cupana
650 $aProdutividade
700 1 $aSARAIVA, J. M. V.
700 1 $aATROCH, A. L.
773 $tAgrometeoros, Passo Fundo$gv. 29, e026787, 2021.
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Embrapa Amazônia Ocidental (CPAA) |
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