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| Registros recuperados: 161 | |
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| Vasconcelos, Ubieli Alves Araújo; Dias, Luiz Antônio dos Santos; Corrêa, Thais Roseli; Rosmaninho, Lucas Barbosa de Castro; Silva, Dandara Rêgo Muniz da; Zaidan, Iasmine Ramos. |
| Crambe is an oilseed plant producing oil that can be used for various industrial purposes, including the production of biofuel. It is a short-cycle, non-food plant that can be grown as a second crop following soybean or corn crops and using the same agricultural machinery. This work aimed to estimate genetic parameters and correlations between traits of genotypes grown for two years in seven locations in two Brazilian states. The cultivar FMS Brilhante and the lines CR 1101, CR 1102, CR 1105, CR 1202, CR 1303, and CR 1304 were used. The traits evaluated were grain yield (YD), plant height (PH), stem diameter (SD), first fruiting branch height (BH), 1,000-seed weight (SW), and number of branches (NB). The correlations between traits were identified from the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding; Biofuels; Oleaginous plants; Brassicaceae breeding; Biofuels; Oleaginous plants; Brassicaceae. |
| Ano: 2020 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42490 |
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| Malatak, Jan. |
| At the present time there has been a serious question of non-renewable energy resources substitution that is why solved problem has worldwide meaning within high increase of fuels consumption from renewable energy resources. The aim of this paper is definition of other possibilities and limits for energetic utilization of solid biomass modified by pyrolysis technology to biochar. Analyzed samples are processed into the form of pellets in diameter 8 mm made from rape straw. There is used laboratory pyrolysis unit working on the principle of slow pyrolysis reaction which processes samples at the temperature of 400 °C and taking 220 minutes in reactor filled by nitrogen medium. The experimental part of the work is based on elemental and stoichiometric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofuels; Elemental analysis; Stoichiometric analysis; Pyrolysis; Combustion. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3078 |
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| FREITA,CRISTHYANE M.; FREITA,LIDYANE A.; TRALLI,LETICIA F.; SILVA,ALINE F.; MENDES,FRANCIELE Q.; TEIXEIRA,VITOR; MUTTON,MARCIA J.R.. |
| ABSTRACT One of the most important steps is to clarify the juice, which are added synthetic polymer acrylamide base, aiming the fast settling of impurities present in the juice. However, this input is expensive and may have carcinogenic and neurotoxic actions to humans. The search for new natural flocculants that have similarity with the commercial product is of great value. A bioextract that may be promising and has coagulant action is the Moringa oleifera Lam. In this context, the objective of the research was to evaluate the consequences of the use of moringa seed extracts and various concentrations of commercial polymer, such as sedimentation aids in clarifying sugarcane juice in the ethanol production, comparing the efficiency of the bioextract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofuels; Biopolymers; Juice treatment; Moringa oleifera Lam.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603093 |
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| Morais,Etiele Greque de; Cassuriaga,Ana Paula Aguiar; Callejas,Nicolás; Martinez,Natalia; Vieitez,Ignacio; Jachmanián,Iván; Santos,Lucielen Oliveira; Morais,Michele Greque de; Costa,Jorge Alberto Vieira. |
| ABSTRACT Spirulina is a microalgal genre that has the capacity to produce various bioproducts with applications in several areas including the energy sector. The study aimed to assess the ability of CO2 biofixation, biodiesel and other biocompounds production by Spirulina sp LEB 18 cultured in air-lift photobioreactor. The microalgae presented a rich macronutrient composition: protein (47.3%), carbohydrates (13.4%) and a high lipid content (32.7%) in a media with nitrogen reduction, CO2 using air-lift photobiorector. Furthermore, 160 mg.L.d-1 of CO2 was biofixed, generating a maximum biomass yield of 0.02 g.L.d-1. The lipids evaluated for biodiesel production presented a theoretical yield of 19.8% for in situ transesterification and 47.9% for conventional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofuels; Carbon dioxide; Microalgae; Photobiorefinary; Biocompounds. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100703 |
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| Martins,Adriana de Souza; Oliveira,Juliane Ribeiro de; Lederer,Marili Lopes; Moletta,José Luís; Galetto,Shivelly Los; Pedrosa,Victor Breno. |
| Due to the seasonal cycle of forage, the use of silage to feed animals provides nutrients throughout the year. However, its quality can be improved with the inclusion of additives and other products. Glycerol is a rich source of energy and present a high efficiency of utilization by animals. The purpose of this work was to evaluate the effect of glycerol inclusion on the chemical and fermentation characteristics of corn and sunflower silages. Two silage sources (maize and sunflower) were used and four levels of glycerol inclusion (0, 15, 30 and 45%) based on dry matter were carried out. The experimental design was completely randomized in a 2 x 4 factorial arrangement with five replications. The pH values and chemical composition of corn and sunflower... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude glycerin; Biofuels; Dry matter; Fermentation quality; Conserved forage. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500009 |
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| Montico,Sergio. |
| Bioenergy is a renewable source of primary energy and its sustainable use is an advantage to the current global energy crisis. The use of vegetable resources for energy purposes requires specific studies of the impacts that might occur to the economy and the environment. The province of Santa Fe (Argentina) has an agroproductive structure capable of providing biomass for its processing and production of energy. The objective of this work was to value the capacity of this province for bioenergy production from grains transformation into biofuels and the biomass energy from crop straw, and speculates on the impact on soils from removed crop residues. Crop residues of the ten most important grain and oilseed crops (15.2x10(6) Mg year-1) and bioethanol and... |
| Tipo: Journal article |
Palavras-chave: Biofuels; Bioenergy; Crops residues; Sustainability. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000300013 |
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| Romero Padilla, Arely. |
| En los últimos años, México ha venido importado grandes cantidades del maíz que consume su población. Ante esta dependencia alimentaria, nuestro país es vulnerable a los cambios en la producción internacional de este cereal y altamente susceptible a las decisiones y políticas que se establecen en Estados Unidos por ser éste el principal proveedor de maíz a México y el principal productor y exportador a nivel mundial. Aunado a ello, ante la crisis energética mundial se ha dado un crecimiento en la producción de biocombustibles, en donde Estados Unidos ha destinado gran parte su producción de maíz a la generación de etanol, lo que impacta directamente la disposición de este cereal para exportarse a los países deficitarios como México. El objetivo de este... |
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Palavras-chave: Importaciones; Biocombustibles; Maíz; Políticas Agrícolas; Precios Agrícolas; Imports; Biofuels; Corn; Agricultural Policy; Agricultural Prices; Economía; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1872 |
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| Linares Bravo, Bárbara Carolina. |
| Este trabajo describe, desde una perspectiva territorial y de género, el proceso de reconversión productiva a palma de aceite y sus repercusiones en tres localidades indígenas del Valle del Tulijá, Chiapas, México. La información aquí presentada, se recolectó y analizó a través de un enfoque mixto de investigación, utilizando la encuesta y la entrevista semiestructurada como herramientas principales. Se encuentra que la reconversión productiva a palma de aceite, cuyo destino comercial es la industria alimenticia y de biocombustibles, ha sido promovida desde agentes locales, nacionales e internacionales, impactando diferencialmente en el ámbito local, con base en las desiguales relaciones de poder encontradas al interior del territorio. Al sustituir una... |
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Palavras-chave: Biocombustibles; Globalización neoliberal; Políticas públicas; Relaciones de género; Biofuels; Food crisis; Neoliberal globalization; Public policies; Gender relationships; Desarrollo rural; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2370 |
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| Solís Guzmán, Blanca Flor. |
| Jatropha curcas L. es una opción de importancia en Chiapas como materia prima para biodiesel y se han establecido alrededor de 10 mil hectáreas, aún con escasa información como cultivo. El objetivo de este trabajo fue determinar el potencial de integración de J. curcas en agroecosistemas de la Región Centro de Chiapas, México. Esta investigación se realizó en tres etapas de 2008 a 2011. Primero se determinaron áreas potenciales con el programa ArcView GIS Ver. 3.2®, en dos escenarios: 1) pendiente ≥5 ≤15 % y 2) pendiente ≥0 ≤15 %; el segundo analizó la actitud y aptitud de productores hacia J. curcas como cultivo, usando el índice de Likert y análisis estadísticos univariados y bivariados; el tercero determinó la factibilidad financiera para cultivar J.... |
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Palavras-chave: Jatropha curcas; Cultivos asociados; Biocombustibles; Chiapas; Intercropping; Biofuels; Doctorado; Agroecosistemas tropicales. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/698 |
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| Prins, Anne Gerdien; Netherlands Environmental Assessment Agency (PBL); Annegerdien.Prins@pbl.nl; Eickhout, Bas; Netherlands Environmental Assessment Agency (PBL); European Parliament; Bas.Eickhout@pbl.nl; van Meijl, Hans; Agricultural Economics Institute (LEI); Hans.vanMeijl@wur.nl; Rienks, Willem; Rom3D, formerly Alterra, Research Institute for the Green Space, Wageningen University and Research Centre; Willem.Rienks@wur.nl; Woltjer, Geert; Agricultural Economics Institute (LEI); Geert.Woltjer@wur.nl. |
| Food supply and food distribution have been and are important issues in the global political arena. The recent emergence of biofuel policies has increased the influence of the policy arena on agricultural production. In this paper we show the regional impact of changes in the European Common Agricultural Policy and biofuel policy. Shifting trade patterns, changes in agricultural production, and expansion of agricultural area or intensification of agriculture result in changes in land use and land use emissions. Higher prices for agricultural crops on the world market together with changing production raise agricultural income. Brazil is the region the most affected. The results show that arrangements or policies will be needed to avoid negative impacts in... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agricultural income; Biodiversity; Biofuels; CAP reform; Land use. |
| Ano: 2011 |
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| von Maltitz, Graham P.; CSIR, South Africa; Nelson Mandela Metropolitan University, South Africa; gvmalt@csir.co.za; Gasparatos, Alexandros; Integrated Research System for Sustainability Science (IR3S), University of Tokyo, Tokyo, Japan; gasparatos@ir3s.u-tokyo.ac.jp; Fabricius, Christo; Sustainability Research Unit, Nelson Mandela Metropolitan University, South Africa; christo.fabricius@nmmu.ac.za; Morris, Abbie; Independent development practitioner, Malawi; Chittock.abbie@gmail.com; Willis, Kathy J.; Department of Zoology, University of Oxford, UK; Royal Botanical Gardens Kew, UK; kathy.willis@zoo.ox.ac.uk. |
| Jatropha-based biofuels have undergone a rapid boom-and-bust cycle in southern Africa. Despite strong initial support by governments, donors, and the private sector, there is a lack of empirical studies that compare the environmental and socioeconomic impacts of Jatropha’s two dominant modes of production: large plantations and smallholder-based projects. We apply a rapid ecosystem services assessment approach to understand the impact of two Jatropha projects that are still operational despite widespread project collapse across southern Africa: a smallholder-based project (BERL, Malawi) and a large plantation (Niqel, Mozambique). Our study focuses on changes in provisioning ecosystem services such as biofuel feedstock, food, and woodland products... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Biofuels; Ecosystem services; Jatropha; Malawi; Mozambique; Smallholders. |
| Ano: 2016 |
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| Obidzinski, Krystof ; Center for International Forestry Research (CIFOR); kobidzinski@cgiar.org; Andriani, Rubeta ; Center for International Forestry Research (CIFOR) ; r.andriani@cgiar.org; Komarudin, Heru; Center for International Forestry Research (CIFOR) ; h.komarudin@cgiar.org; Andrianto, Agus ; Center for International Forestry Research (CIFOR) ; a.andrianto@cgiar.org. |
| This paper reviews the development of oil palm with linkages to biofuel in Indonesia and analyzes the associated environmental and socioeconomic impacts. We selected three plantation study sites in West Papua (Manokwari), West Kalimantan (Kubu Raya), and Papua (Boven Digoel) to assess the impacts. Research findings indicate that the development of oil palm in all three sites has caused deforestation, resulting in significant secondary external impacts such as water pollution, soil erosion, and air pollution. In terms of social impacts, many stakeholder groups, i.e., employees, out-growers, and investing households, report significant gains. However, we found these benefits were not evenly distributed. Other stakeholders, particularly traditional... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Biofuels; Environmental impacts; Oil palm; Socioeconomic benefits. |
| Ano: 2012 |
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| Registros recuperados: 161 | |
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