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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
10/03/2023 |
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Data da última atualização: |
19/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOARES, J. P. G.; MACIEL, M. do V.; MACIEL, L. P. A. A.; SALES, P. C. M.; CARDOSO, D. B. |
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Afiliação: |
JOAO PAULO GUIMARAES SOARES, CPAC; MICHEL DO VALE MACIEL; LAURA PRISCILA ARAÚJO AMARO MACIEL; PEDRO CANUTO MACEDO SALES; DANIEL BARROS CARDOSO. |
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Título: |
Manejo agroecológico do Capim Tanzânia sob pastejo de cabras mestiças no Semiárido Brasileiro. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Revista Brasileira de Agroecologia, v. 18, n. 1, 2023. |
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Páginas: |
p. 254-267 |
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Idioma: |
Português |
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Conteúdo: |
RESUMO: Objetivou-se avaliar a produtividade e a composição química do capim Tanzânia e a ingestão de matéria seca e dos nutrientes por cabras mestiças sob pastejo em manejo agroecológico no Semiárido brasileiro. A pastagem de Panicum maximun cv. Tanzânia, sob manejo agroecológico, foi dividida em 16 piquetes, com 30 dias de descanso e 2 de ocupação por 15 cabras mestiças de ½ Boer e ½ Saanen. Foi observada variação na composição química pelos teores de FDA (38,49 a 40,67%) nos meses de maio a novembro, respectivamente. Aumento (P<0,05) no consumo de matéria seca (2,04; 1,84; 1,80 kg.dia-1) também foi identificado para os meses de maio, julho e setembro, respectivamente. O manejo agroecológico foi capaz de manter em níveis adequados a produtividade e a qualidade da pastagem de capim Tanzânia. Promoveu também o uso eficiente da forragem com taxa de lotação satisfatória, proporcionando o consumo de matéria seca adequado para manutenção das cabras mestiças nas condições semiáridas. ABSTRACT: The objective was to evaluate Tanzania grass's productivity, chemical composition, dry matter, and nutrient intake by hybrid goats under grazing on agroecological management in a Semiarid region, Brazil. The pasture of Panicum maximun Jacq. cv. Tanzania, under agroecological management, was divided into 16 paddocks, with 30 days of rest and 2 of occupation by 15 crossbreed goats of 1/2 Boer and 1/2 Saanen. A variation in chemical composition was observed by the levels of ADF (38.49 to 40.67%) in May and November, respectively. An increase (P<0.05) in dry matter intake (2.04, 1.84; 1.80 kg.day1) was also identified for the months of May, July and September, respectively. Agroecological management was able to maintain at adequate levels the productivity and quality of Tanzania grass pasture. It also promoted the efficient use of forage with a satisfactory stocking rate, providing acceptable dry matter consumption for the maintenance of crossbred goats in semi-arid conditions. MenosRESUMO: Objetivou-se avaliar a produtividade e a composição química do capim Tanzânia e a ingestão de matéria seca e dos nutrientes por cabras mestiças sob pastejo em manejo agroecológico no Semiárido brasileiro. A pastagem de Panicum maximun cv. Tanzânia, sob manejo agroecológico, foi dividida em 16 piquetes, com 30 dias de descanso e 2 de ocupação por 15 cabras mestiças de ½ Boer e ½ Saanen. Foi observada variação na composição química pelos teores de FDA (38,49 a 40,67%) nos meses de maio a novembro, respectivamente. Aumento (P<0,05) no consumo de matéria seca (2,04; 1,84; 1,80 kg.dia-1) também foi identificado para os meses de maio, julho e setembro, respectivamente. O manejo agroecológico foi capaz de manter em níveis adequados a produtividade e a qualidade da pastagem de capim Tanzânia. Promoveu também o uso eficiente da forragem com taxa de lotação satisfatória, proporcionando o consumo de matéria seca adequado para manutenção das cabras mestiças nas condições semiáridas. ABSTRACT: The objective was to evaluate Tanzania grass's productivity, chemical composition, dry matter, and nutrient intake by hybrid goats under grazing on agroecological management in a Semiarid region, Brazil. The pasture of Panicum maximun Jacq. cv. Tanzania, under agroecological management, was divided into 16 paddocks, with 30 days of rest and 2 of occupation by 15 crossbreed goats of 1/2 Boer and 1/2 Saanen. A variation in chemical composition was observed by the levels of ADF (38.49 to 40.67... Mostrar Tudo |
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Palavras-Chave: |
Agroecologia; Capim Tanzânia; Semiárido. |
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Thesagro: |
Panicum Maximum; Pastagem; Produtividade. |
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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/doc/1152269/1/Joao-Paulo-manejo-agroecologico-do-capim-tanzania.pdf
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Marc: |
LEADER 02769naa a2200253 a 4500
001 2152269
005 2024-02-19
008 2023 bl uuuu u00u1 u #d
100 1 $aSOARES, J. P. G.
245 $aManejo agroecológico do Capim Tanzânia sob pastejo de cabras mestiças no Semiárido Brasileiro.$h[electronic resource]
260 $c2023
300 $ap. 254-267
520 $aRESUMO: Objetivou-se avaliar a produtividade e a composição química do capim Tanzânia e a ingestão de matéria seca e dos nutrientes por cabras mestiças sob pastejo em manejo agroecológico no Semiárido brasileiro. A pastagem de Panicum maximun cv. Tanzânia, sob manejo agroecológico, foi dividida em 16 piquetes, com 30 dias de descanso e 2 de ocupação por 15 cabras mestiças de ½ Boer e ½ Saanen. Foi observada variação na composição química pelos teores de FDA (38,49 a 40,67%) nos meses de maio a novembro, respectivamente. Aumento (P<0,05) no consumo de matéria seca (2,04; 1,84; 1,80 kg.dia-1) também foi identificado para os meses de maio, julho e setembro, respectivamente. O manejo agroecológico foi capaz de manter em níveis adequados a produtividade e a qualidade da pastagem de capim Tanzânia. Promoveu também o uso eficiente da forragem com taxa de lotação satisfatória, proporcionando o consumo de matéria seca adequado para manutenção das cabras mestiças nas condições semiáridas. ABSTRACT: The objective was to evaluate Tanzania grass's productivity, chemical composition, dry matter, and nutrient intake by hybrid goats under grazing on agroecological management in a Semiarid region, Brazil. The pasture of Panicum maximun Jacq. cv. Tanzania, under agroecological management, was divided into 16 paddocks, with 30 days of rest and 2 of occupation by 15 crossbreed goats of 1/2 Boer and 1/2 Saanen. A variation in chemical composition was observed by the levels of ADF (38.49 to 40.67%) in May and November, respectively. An increase (P<0.05) in dry matter intake (2.04, 1.84; 1.80 kg.day1) was also identified for the months of May, July and September, respectively. Agroecological management was able to maintain at adequate levels the productivity and quality of Tanzania grass pasture. It also promoted the efficient use of forage with a satisfactory stocking rate, providing acceptable dry matter consumption for the maintenance of crossbred goats in semi-arid conditions.
650 $aPanicum Maximum
650 $aPastagem
650 $aProdutividade
653 $aAgroecologia
653 $aCapim Tanzânia
653 $aSemiárido
700 1 $aMACIEL, M. do V.
700 1 $aMACIEL, L. P. A. A.
700 1 $aSALES, P. C. M.
700 1 $aCARDOSO, D. B.
773 $tRevista Brasileira de Agroecologia$gv. 18, n. 1, 2023.
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Embrapa Cerrados (CPAC) |
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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: |
23/06/2021 |
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Data da última atualização: |
10/06/2022 |
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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: |
PINTO, A. S. S.; BRONDI, M. G.; FREITAS, J. V. de; FURLAN, F. F.; RIBEIRO, M. P. A.; GIORDANO, R. C.; FARINAS, C. S. |
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Afiliação: |
CRISTIANE SANCHEZ FARINAS, CNPDIA. |
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Título: |
Mitigating the negative impact of soluble and insoluble lignin in biorefineries. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Renewable Energy, v. 173, 2021. |
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Páginas: |
1017-1026 |
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ISSN: |
0960-1481 |
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DOI: |
https://doi.org/10.1016/j.renene.2021.03.137 |
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Idioma: |
Inglês |
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Conteúdo: |
The presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make the biorefineries feasible, requiring the development of technologies capable of improving their competitiveness in the biofuel marketplace. Soluble and insoluble lignin can impair the enzymatic hydrolysis process by inhibition, deactivation, and unproductive adsorption of enzymes. Washing the pretreated biomass or using lignin-blocking additives during saccharification could mitigate these negative effects in future biorefineries. Here, an investigation was performed of the combined mitigation processes, in terms of their technical and economic feasibility in an integrated first and second generation (1G2G) sugarcane biorefinery. Evaluation was made of the impacts of biomass washing and soybean protein addition, separately or in combination, on glucose yields for enzymatic hydrolysis in the presence of high (liquor) and low (buffer) concentrations of soluble inhibitors/deactivators. Combining washing and soybean protein addition provided the highest glucose yields, with an increase of up to 50%. The effect of the mitigation processes could be explained by a combination of catalytic mechanisms acting on both soluble and insoluble lignin. In an industrial context, biomass washing (90 #1;C, 15% (w/w) solids, 3 steps) followed by soybean protein addition (12% (w/v) solids) provided a cost-competitive methodology for bioethanol production, with an estimated net present value of US$ 9.16 107 , optimizing hydrolysis process in the 1G2G sugarcane biorefinery. MenosThe presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make the biorefineries feasible, requiring the development of technologies capable of improving their competitiveness in the biofuel marketplace. Soluble and insoluble lignin can impair the enzymatic hydrolysis process by inhibition, deactivation, and unproductive adsorption of enzymes. Washing the pretreated biomass or using lignin-blocking additives during saccharification could mitigate these negative effects in future biorefineries. Here, an investigation was performed of the combined mitigation processes, in terms of their technical and economic feasibility in an integrated first and second generation (1G2G) sugarcane biorefinery. Evaluation was made of the impacts of biomass washing and soybean protein addition, separately or in combination, on glucose yields for enzymatic hydrolysis in the presence of high (liquor) and low (buffer) concentrations of soluble inhibitors/deactivators. Combining washing and soybean protein addition provided the highest glucose yields, with an increase of up to 50%. The effect of the mitigation processes could be explained by a combination of catalytic mechanisms acting on both soluble and insoluble lignin. In an industrial context, biomass washing (90 #1;C, 15% (w/w) solids, 3 steps) followed by soybean protein addition (12% (w/v) solids) provided a cost-competitive methodology for bioethanol production, with an estimated net present value of ... Mostrar Tudo |
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Palavras-Chave: |
1G2G ethanol; Pretreatment byproducts; Soybean protein addition; Techno-economic assessment; Washing process. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02432naa a2200289 a 4500
001 2132515
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a0960-1481
024 7 $ahttps://doi.org/10.1016/j.renene.2021.03.137$2DOI
100 1 $aPINTO, A. S. S.
245 $aMitigating the negative impact of soluble and insoluble lignin in biorefineries.$h[electronic resource]
260 $c2021
300 $a1017-1026
520 $aThe presence of inhibitors is still an economic bottleneck that needs to be resolved in order to make the biorefineries feasible, requiring the development of technologies capable of improving their competitiveness in the biofuel marketplace. Soluble and insoluble lignin can impair the enzymatic hydrolysis process by inhibition, deactivation, and unproductive adsorption of enzymes. Washing the pretreated biomass or using lignin-blocking additives during saccharification could mitigate these negative effects in future biorefineries. Here, an investigation was performed of the combined mitigation processes, in terms of their technical and economic feasibility in an integrated first and second generation (1G2G) sugarcane biorefinery. Evaluation was made of the impacts of biomass washing and soybean protein addition, separately or in combination, on glucose yields for enzymatic hydrolysis in the presence of high (liquor) and low (buffer) concentrations of soluble inhibitors/deactivators. Combining washing and soybean protein addition provided the highest glucose yields, with an increase of up to 50%. The effect of the mitigation processes could be explained by a combination of catalytic mechanisms acting on both soluble and insoluble lignin. In an industrial context, biomass washing (90 #1;C, 15% (w/w) solids, 3 steps) followed by soybean protein addition (12% (w/v) solids) provided a cost-competitive methodology for bioethanol production, with an estimated net present value of US$ 9.16 107 , optimizing hydrolysis process in the 1G2G sugarcane biorefinery.
653 $a1G2G ethanol
653 $aPretreatment byproducts
653 $aSoybean protein addition
653 $aTechno-economic assessment
653 $aWashing process
700 1 $aBRONDI, M. G.
700 1 $aFREITAS, J. V. de
700 1 $aFURLAN, F. F.
700 1 $aRIBEIRO, M. P. A.
700 1 $aGIORDANO, R. C.
700 1 $aFARINAS, C. S.
773 $tRenewable Energy$gv. 173, 2021.
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