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| Registros recuperados: 227 | |
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| López Escudero, Roberto de Jesús. |
| El etanol lignocelulósico generado a partir de la biomasa seca de especies como Pennisetum purpureum puede ser la solución a problemáticas actuales como la crisis energética, la ineficiencia de los biocombustibles de primera generación, el desplazamiento de tierras destinadas al sustento humano y el cambio en el uso de los suelos. Sin embargo, con la finalidad de aumentar la eficiencia energética de esta especie, es necesario identificar áreas con condiciones agroecológicas óptimas que no compitan con la producción de alimentos. Por lo anterior el objetivo de este trabajo fue cartografiar y generar un índice de productividad de Pennisetum purpureum con base a las condiciones agroecológicas del estado de Veracruz. Se utilizó el modelo Soil and Water... |
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Palavras-chave: Etanol; Pennisetum purpureum; Modelos de simulación; SWAT; URH; Ethanol; Simulation models; Agroecosistemas Tropicales; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2343 |
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| Xiao,Anfeng; Jiang,Xinglong; Ni,Hui; Yang,Qiuming; Cai,Huinong. |
| Background To study the relationship between intracellular anabolism and astaxanthin production, the influence of intracellular protein and fatty acids on astaxanthin production by four mutant Phaffia rhodozyma strains and their variations was investigated in this research. Results First, the content of astaxanthin in cells showed a reverse fluctuation in contrast to that of protein during the whole fermentation process. Moreover, compared with the three other strains, the astaxanthin-overproducing mutant strain of the yeast P. rhodozyma, called JMU-MVP14, had the highest specific productivity of astaxanthin as 6.8 mg/g, whereas its intracellular protein and fatty acid contents were the lowest. In addition, as a kind of sugar metabolic product, ethanol was... |
| Tipo: Journal article |
Palavras-chave: Astaxanthin; Ethanol; Fatty acids; Phaffia rhodozyma; Protein. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300002 |
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| Petrini,Maria A.; Rocha,Jansle V.. |
| In Brazil, the State of Goiás is one of sugarcane expansion's frontiers to meet the growing demand for biofuels. The objective of this study was to identify the municipalities where there were replacement of annual crops (mainly grains) by sugarcane in the state of Goiás, as well as indicate correlations between the sugarcane expansion and the family farming production, in the period between 2005 and 2010. For this purpose, grains crop mask and sugarcane crop mask, obtained from satellite images, were intersected using geoprocessing techniques. It was also used IBGE data of sugarcane production and planted area, and data of family farming production linked with the National Food Acquisition Program (PAA), in relation to the number of cooperatives and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Geoprocessing; Ethanol; National Food Acquisition Program (PAA). |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600023 |
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| Jordan,Rodrigo A.; Almeida,Alexsandro C. S.; Queiroz,Marcos V. B. M.; Gomes,Eder P.; Rezende,Rodrigo K. S.. |
| ABSTRACT: The objective of this study was to evaluate the yield and energy balance of four sorghum genotypes in irrigated and rainfed crops. The experiment was conducted in an irrigation and drainage unit at the Federal University of Grande Dourados (UFGD), in Dourados, Mato Grosso do Sul state (Brazil). The experimental design was a randomized complete block design with split plots (with and without irrigation), testing four genotypes (BRS 506, CV 007, CV 147, and EJ 7281) with four replicates (32 plots). Irrigation provided yield increase in all four genotypes. The respective yield increases were 85.89%, 71.82%, 64.28%, and 63.36% for genotypes EJ 7281, BRS 506, CV 147, and CV 007. The energy efficiency (produced/ used ratio) was on average 3.5 under... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Irrigation; Productivity; Off-season; Ethanol. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000500907 |
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| Syvaeranta, Jari; Martino, Aurelia; Kopp, Dorothee; Cereghino, Regis; Santoul, Frederic. |
| We tested the impacts of most common sample preservation methods used for aquatic sample materials on the stable isotope ratios of carbon and nitrogen in clams, a typical baseline indicator organism for many aquatic food web studies utilising stable isotope analysis (SIA). In addition to common chemical preservatives ethanol and formalin, we also assessed the potential impacts of freezing on delta C-13 and delta N-15 values and compared the preserved samples against freshly dried and analysed samples. All preservation methods, including freezing, had significant impacts on delta C-13 and delta N-15 values and the effects in general were greater on the carbon isotope values (1.3-2.2aEuro degrees difference) than on the nitrogen isotope values (0.9-1.0aEuro... |
| Tipo: Text |
Palavras-chave: Formalin; Freezing; Ethanol; Preservation; Stable isotope analysis. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00021/13192/10271.pdf |
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| Kassis,Elias Nairn; Azoubel,Reinaldo; Lopes,Ruberval Armando; Martins,Alex Tadeu; Matteo,Miguel Ángel Sala di; Gawlinski,Viviane Curi. |
| The present work studied the adverse effects of maternal exposure of rats to alcohol during lactation, on the development of their offspring. Histometric evaluation by karyometry and of the palatine epithelium of the sucking was performed. Two groups of animals, one coming from mothers exposed to drinking water containing 20% ethanol during the total lactation period and the other of controls coming from mothers receiving only alcohol-free drinking water during this period. On the 21 first day of lactation the young of each group were aleatorily selected and following anesthesia, their heads severed; after histological treatment, serial 6 |J,m sections on the frontal plane at the molar level, stained with hematoxilin and eosin, were obtained. The... |
| Tipo: Journal article |
Palavras-chave: Ethanol; Palatine epithelium; Lactation. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400013 |
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| Sandoval,Cristian; Vásquez,Bélgica; Mandarim-de-Lacerda,Carlos; del Sol,Mariano. |
| Prolonged alcohol consumption has consequences on the liver, producing necrotic precipitates and fibrosis, on the pancreas, causing the pancreatic acini to atrophy and destroying insulin-producing cells, and on the central nervous system (CNS), causing the gray and white matter in the frontal lobes of the brain and cerebellum to atrophy. Generally, alcohol is metabolized via oxidative pathways, where the enzymes alcohol dehydrogenase and aldehyde dehydrogenase participate during its metabolization in the liver and CNS, or via non-oxidative pathways during its metabolization in the pancreas. Ethanol metabolism can produce oxidative stress and tissue damage mediated by free radicals, causing morphological and functional alterations in the liver. In the... |
| Tipo: Journal article |
Palavras-chave: Antioxidants; Ethanol; Liver; Pancreas; Central nervous system. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300024 |
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| Lopes,Danielly Bandeira; Nascimento,Guilherme Nobre Lima do; Carvalho,Adryano Augustto Valladão de; Souza Neto,Advaldo Carlos de; Lima,Natácia Evangelista de; Aversi-Ferreira,Tales Alexandre. |
| The verification of the acute effects of ethanol on the midbrain, which neurons are mainly formed in E14, will ratify if the acute effects of ethanol are associated, in terms of prevalence, to the date of birth of neurons in certain regions of the brain. The aim of this study was to determine the effects of acute exposure to ethanol on the neuronal density of the midbrain and to associate these results with acute effects of ethanol in other regions of the brain under the same conditions. The rats were treated with intraperitoneal ethanol during one day (E12) and 1h after the last ethanol injection was applied to BrdU. The animals were sacrificed; the brains were removed and sectioned. The sections were treated with DAB for the BrdU revelation, the slides... |
| Tipo: Journal article |
Palavras-chave: Ethanol; Brain; Midbrain; Neuronal migration; Fetal Alcohol Syndrome. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300009 |
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| Curi,Viviane; Azoubel,Reinaldo; Lopes,Ruberval Armando; Martins,Alex Tadeu; Sala Di Matteo,Miguel Ángel; Kassis,Elias Naim. |
| The present work studied the adverse effects of maternal exposure of rats to alcohol during lactation, on the development of their off spring. Histometric evaluation by karyometry and of the alveolar bone at the level of the first upper molar of the sucking was perfomed. Two groups of animáis, one coming from mothers exposed to drinking water containing 20% ethanol during the total lactation period and the other of controls coming from mothers receiving only alcohol-free drinking water during this period. On the 21 first day of lactation the young of each group were aleatorily selected and following anesthesia, their heads severed; after histological treatment, serial 6 μm sections on the frontal plañe at the molar level, stained with hematoxilin... |
| Tipo: Journal article |
Palavras-chave: Ethanol; Alveolar bone; Lactation. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400026 |
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| Aparecida Marinho,Sandra; Sala,Miguel Angel; Lopes,Ruberval Armando; de Moraes Grisi,Márcio Fernando; Belém Novaes Jr.,Arthur; Scombatti de Souza,Sérgio Luis; Taba Jr.,Mário. |
| SUMMARY: The effects of acetylsalicylic acid (ASA) on intrauterine growth restriction induced by maternal ethanol consumption were studied. A single intraperitoneal dose of ethanol (2.96 g/kg body weight), injected on the 10th day of pregnancy (PD10), significantly reduced maternal weight gain, fetal weight, amniotic fluid volume and umbilical cord length. Meanwhile, ethanol did not affect placental weight or litter size. A single intraperitoneal dose of ASA (200 mg/g body weight), injected on the PD10, did not modify maternal body weight gain, litter size, fetal and placental weights and amniotic fluid volume, but significantly diminished umbilical cord length. Intraperitoneal injections of either ASA (200 mg/g body weight) or ethanol (2.96 g/kg body... |
| Tipo: Journal article |
Palavras-chave: Rat; Fetus; ASA; Ethanol; Intrauterine development. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200002 |
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| Palermo,A.M; Mudry,M.D. |
| Acetaldehyde (AAld) is a ubiquitous compound in the environment. Exposure may occur in its manufacture or use, in the consumption of alcoholic beverages and through cigarette smoke. It causes distant target effects, including DNA damage, glutathione depletion, enzyme inactivation and cell death. In the present work, its potential teratogenic, mutagenic and recombinagenic effects in somatic cells of D. melanogaster were analyzed. The white/white+ (w/w+) eye mosaic test (Somatic Mutation And Recombination Test, SMART) was applied by mating w/w females with y/Y males. Larvae of 48 ± 4 h were transferred to media with 0.01 %, 0.02 %, 0.05 % and 0.10 % AAld for 12 hs and then moved to regular media until pupation. The emerging w/w+ females were evaluated for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethanol; Teratogenesis; Mutagenesis; Loss of heterozygosity; Eye-spot test. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332015000300007 |
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| YAMADA, Sunao; SHINOMIYA, Noriyuki; OHBA, Kiyoshi; SEKIKAWA, Mitsuo; ODA, Yuji; 関川, 三男; 小田, 有二. |
| By-products from potato processing plants were liquefied and partially saccharified using three commercially available enzymes, followed by ethanol fermentation by yeast and then hydrolysis by glucoamylase. From 12% (w/w) of fresh potato peel, about 20 mg/mL ethanol was formed in the supernatant via amylase, pectinase, or an enzyme complex; this yield was slightly increased with combinations of these enzymes. Supplementation of substandard mash to potato peel (1:1) as a raw material enhanced the amount of ethanol formation, increasing it to approximately 50 mg/mL by the mixture of all three enzymes. After the addition of yeast and glucoamylase to the partially saccharified material, ethanol formation proceeded gradually and slowed in 12 h with the... |
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Palavras-chave: Potato peel; Substandard mash; Ethanol; Fermentation. |
| Ano: 2009 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2962 |
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| Osorio-Córdoba,J; Rodriguez-Verástegui,LL; Díaz de León-Sánchez,F; Bosquez-Molina,E; Verde-Calvo,JR; Escalona-Buendía,HB; Pérez-Flores,LJ; Pelayo-Zaldívar,C. |
| Cactus stems, the cladodes of Opuntia spp. cacti, are consumed in Mexico and other countries due to their fresh and herbaceous flavor, and because of their widely known nutraceutical benefits. In order to extend the postharvest life of this vegetable, the effect of a modified atmosphere packaging (MAP) was studied in cactus stems of the cultivar Atlixco stored at 4 ± 1 °C for 20 days under three types of atmospheres: (1) air (passive atmosphere), (2) 5 kPa O2 + 4 kPa CO2, and (3) N2. During storage, the titratable acidity decreased and the color of cladodes became darker and less green; however, the 5 kPa O2 + 4 kPa CO2 atmosphere was able to preserve both quality characteristics. All modified atmospheres reduced weight loss (from 8 to <2%) and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetaldehyde; Cladodes; Nopal; Ethanol; Modified atmosphere; Quality; Refrigeration; Wound. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200016 |
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| Gustafson, Cole R.. |
| Several recent developments have stimulated farmers' interest in raising corn for ethanol production in northwestern North Dakota. The purpose of this study is to estimate the corn supply response of western North Dakota farmers for ethanol production. Two focus groups of western North Dakota farmers (Williston and Minot) were organized. The market premium over prevailing local corn prices that was required by western North Dakota farms to entice additional production of an ethanol specific hybrid was determined. Aggregation of these farm responses yielded a supply function of corn for the region. Results show that sufficient corn can be produced in the surrounding region to support a 12 million gallon ethanol facility if modest price premiums are... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Ethanol; Corn supply; Response; Crop Production/Industries; Resource /Energy Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/23593 |
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| Elobeid, Amani E.; Tokgoz, Simla. |
| We analyze the impact of trade liberalization and removal of the federal tax credit in the United States on U.S. and Brazilian ethanol markets using a multi-market international ethanol model calibrated on 2005 market data and policies. The removal of trade distortions induces a 23.9 percent increase in the price of world ethanol on average between 2006 and 2015 relative to the baseline. The U.S. domestic ethanol price decreases by 13.6 percent, which results in a 7.2 percent decline in production and a 3.8 percent increase in consumption. The lower domestic price leads to a 3.7 percent rise in the share of fuel ethanol in gasoline consumption. U.S. net ethanol imports increase by 199 percent. Brazil responds to the higher world ethanol price by increasing... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Biofuels; Ethanol; Renewable fuels; Trade liberalization; Resource /Energy Economics and Policy; F13; F17; Q17; Q18; Q42. |
| Ano: 2007 |
URL: http://purl.umn.edu/9808 |
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| Registros recuperados: 227 | |
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