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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Pesca e Aquicultura. |
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Data corrente: |
06/02/2020 |
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Data da última atualização: |
24/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROCHA, R. N. C. da; RODRIGUES, M. do R. L.; LOPES, R.; CYSNE, A. Q.; MACEDO, J. L. V. de. |
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Afiliação: |
RAIMUNDO NONATO CARVALHO DA ROCHA, CNPASA; MARIA DO ROSARIO LOBATO RODRIGUES, CPAA; RICARDO LOPES, CPAA; ALEX QUEIROZ CYSNE, CPAA; JEFERSON LUIS VASCONCELOS DE MACEDO, CPAA. |
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Título: |
Production and cash flow of oil palm intercropping systems an amazonian degraded area. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Nativa, Sinop, v. 8, n. 1, p. 52-57, jan./fev. 2020. |
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ISSN: |
2318-7670 |
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DOI: |
http://dx.doi.org/10.31413/nativa.v8i1.8073 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to analyze the technical viability and cash flow of intercrop cultivation in the first three years after oil palm planting in a degraded area of the Amazon. Four intercropping systems were tested: SI - oil palm + banana; SII - oil palm + cassava; SIII - oil palm + pineapple, and SIV - oil palm in monoculture. Intercropping was performed during the first three years of oil palm planting and the cash flow of the systems evaluated during this period. The oil palm bunches production was evaluated from 7th to 10th year after planting. SIII had best financial performance, with deployment and maintenance costs 100% amortized over the three years of the system. The SI and SII systems amortized 86.7% and 64.5% of the costs, respectively. Oil palm bunches production was not affected by intercropping. Yield of intercrops was similar to that expected from the crops in monoculture. The intercropping systems evaluated provide a technically and economically viable alternative to generate income and amortize planting and maintenance costs during oil palm juvenile phase in degraded areas of the Amazon. |
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Thesagro: |
Custo de Produção; Dendê; Elaeis Guineensis; Produção Integrada. |
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Thesaurus Nal: |
Integrated crop management; Oil palm products; Production costs. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/210530/1/CNPASA-2020-nativa.pdf
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Marc: |
LEADER 01985naa a2200277 a 4500
001 2120075
005 2020-04-24
008 2020 bl uuuu u00u1 u #d
022 $a2318-7670
024 7 $ahttp://dx.doi.org/10.31413/nativa.v8i1.8073$2DOI
100 1 $aROCHA, R. N. C. da
245 $aProduction and cash flow of oil palm intercropping systems an amazonian degraded area.$h[electronic resource]
260 $c2020
520 $aThe objective of this study was to analyze the technical viability and cash flow of intercrop cultivation in the first three years after oil palm planting in a degraded area of the Amazon. Four intercropping systems were tested: SI - oil palm + banana; SII - oil palm + cassava; SIII - oil palm + pineapple, and SIV - oil palm in monoculture. Intercropping was performed during the first three years of oil palm planting and the cash flow of the systems evaluated during this period. The oil palm bunches production was evaluated from 7th to 10th year after planting. SIII had best financial performance, with deployment and maintenance costs 100% amortized over the three years of the system. The SI and SII systems amortized 86.7% and 64.5% of the costs, respectively. Oil palm bunches production was not affected by intercropping. Yield of intercrops was similar to that expected from the crops in monoculture. The intercropping systems evaluated provide a technically and economically viable alternative to generate income and amortize planting and maintenance costs during oil palm juvenile phase in degraded areas of the Amazon.
650 $aIntegrated crop management
650 $aOil palm products
650 $aProduction costs
650 $aCusto de Produção
650 $aDendê
650 $aElaeis Guineensis
650 $aProdução Integrada
700 1 $aRODRIGUES, M. do R. L.
700 1 $aLOPES, R.
700 1 $aCYSNE, A. Q.
700 1 $aMACEDO, J. L. V. de
773 $tNativa, Sinop$gv. 8, n. 1, p. 52-57, jan./fev. 2020.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/06/2014 |
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Data da última atualização: |
23/09/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
CHICATTO, J. A.; CASTAMANN, V. A.; HELM, C. V.; TAVARES, L. B. B. |
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Afiliação: |
Juliane Andressa Chicatto, FURB; Vitória Arend Castamann, FURB; CRISTIANE VIEIRA HELM, CNPF; Lorena Benathar Ballod Tavares, FURB. |
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Título: |
Optimization of the production process of enzymatic activity of Lentinula edodes (Berk.) Pegler in holocelulases. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Natural Resources, v. 5, n. 6, p. 241-255, Apr. 2014. |
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DOI: |
10.4236/nr.2014.56023 |
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Idioma: |
Inglês |
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Conteúdo: |
Issues such as fossil fuels and oil supplies have stimulated the search for renewable alternatives such as biofuels. Agricultural crop residues represent an abundant renewable resource for the future of bioethanol. For it to be a viable alternative, the second-generation ethanol which ought to provide a net energy gain, environmental benefits, should be economically viable, and also be produced in large quantities without reducing food supplies. The current difficulty of lignocellulosic biofuel production is the hydrolysis of biomass into sugar. This is a work in which the white-rot Lentinula edodes fungus secretes substantial amounts of hydrolytic enzymes and is useful for degradation of lignocellulosic biomass which have not been described yet. The objective of this investigation was to evaluate the pH effect (5, 6 and 7), agitation (0, 100 rpm and 200 rpm) and also the cultivation time (6, 9 and 12 days). The culture medium was supplemented with agro-industrial residue and the EF 52 strain of the fungus Lentinula edodes was used as a processing agent. A factorial design 22 repeating the central point was performed. Submerged cultivation was conducted in a synthetic medium and was incubated at 25?C. The total protein content was determined as well as the activity of xylanase and cellulase (endoglucanase, exoglucanase and ?-glucosidase). By Pareto diagram, the agitation and pH variables were significant for enzymatic activities. The highest enzyme expression occurred at pH values between 5.0 and 6.0 and above 100 rpm agitation. The exoglucanase was the enzyme which showed the highest activity in terms of cellulases, despite the cultivation time. Regarding the production of other enzymes and proteins, the most significant cultivation time was 12 days. MenosIssues such as fossil fuels and oil supplies have stimulated the search for renewable alternatives such as biofuels. Agricultural crop residues represent an abundant renewable resource for the future of bioethanol. For it to be a viable alternative, the second-generation ethanol which ought to provide a net energy gain, environmental benefits, should be economically viable, and also be produced in large quantities without reducing food supplies. The current difficulty of lignocellulosic biofuel production is the hydrolysis of biomass into sugar. This is a work in which the white-rot Lentinula edodes fungus secretes substantial amounts of hydrolytic enzymes and is useful for degradation of lignocellulosic biomass which have not been described yet. The objective of this investigation was to evaluate the pH effect (5, 6 and 7), agitation (0, 100 rpm and 200 rpm) and also the cultivation time (6, 9 and 12 days). The culture medium was supplemented with agro-industrial residue and the EF 52 strain of the fungus Lentinula edodes was used as a processing agent. A factorial design 22 repeating the central point was performed. Submerged cultivation was conducted in a synthetic medium and was incubated at 25?C. The total protein content was determined as well as the activity of xylanase and cellulase (endoglucanase, exoglucanase and ?-glucosidase). By Pareto diagram, the agitation and pH variables were significant for enzymatic activities. The highest enzyme expression occurred at pH ... Mostrar Tudo |
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Palavras-Chave: |
Basidiomiceto; Basidiomycetes; Bioetanol; Cellulase; Hidrólise enzimática; Xilanase; Xylanase. |
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Thesagro: |
Celulase. |
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Thesaurus NAL: |
bioethanol; enzymatic hydrolysis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/102997/1/2014-API-CrisH-OptimizationProduction.pdf
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Marc: |
LEADER 02625naa a2200289 a 4500
001 1987490
005 2016-09-23
008 2014 bl uuuu u00u1 u #d
024 7 $a10.4236/nr.2014.56023$2DOI
100 1 $aCHICATTO, J. A.
245 $aOptimization of the production process of enzymatic activity of Lentinula edodes (Berk.) Pegler in holocelulases.$h[electronic resource]
260 $c2014
520 $aIssues such as fossil fuels and oil supplies have stimulated the search for renewable alternatives such as biofuels. Agricultural crop residues represent an abundant renewable resource for the future of bioethanol. For it to be a viable alternative, the second-generation ethanol which ought to provide a net energy gain, environmental benefits, should be economically viable, and also be produced in large quantities without reducing food supplies. The current difficulty of lignocellulosic biofuel production is the hydrolysis of biomass into sugar. This is a work in which the white-rot Lentinula edodes fungus secretes substantial amounts of hydrolytic enzymes and is useful for degradation of lignocellulosic biomass which have not been described yet. The objective of this investigation was to evaluate the pH effect (5, 6 and 7), agitation (0, 100 rpm and 200 rpm) and also the cultivation time (6, 9 and 12 days). The culture medium was supplemented with agro-industrial residue and the EF 52 strain of the fungus Lentinula edodes was used as a processing agent. A factorial design 22 repeating the central point was performed. Submerged cultivation was conducted in a synthetic medium and was incubated at 25?C. The total protein content was determined as well as the activity of xylanase and cellulase (endoglucanase, exoglucanase and ?-glucosidase). By Pareto diagram, the agitation and pH variables were significant for enzymatic activities. The highest enzyme expression occurred at pH values between 5.0 and 6.0 and above 100 rpm agitation. The exoglucanase was the enzyme which showed the highest activity in terms of cellulases, despite the cultivation time. Regarding the production of other enzymes and proteins, the most significant cultivation time was 12 days.
650 $abioethanol
650 $aenzymatic hydrolysis
650 $aCelulase
653 $aBasidiomiceto
653 $aBasidiomycetes
653 $aBioetanol
653 $aCellulase
653 $aHidrólise enzimática
653 $aXilanase
653 $aXylanase
700 1 $aCASTAMANN, V. A.
700 1 $aHELM, C. V.
700 1 $aTAVARES, L. B. B.
773 $tNatural Resources$gv. 5, n. 6, p. 241-255, Apr. 2014.
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Registro original: |
Embrapa Florestas (CNPF) |
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