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| Registros recuperados: 34 | |
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| Mascarenhas Santos, Maria do Socorro; Silva, Cesar José da; Cruz, Sandra Helena da; Batistote, Margareth; Cardoso, Claudia Andrea Lima. |
| Energy cultures are emerging as viable renewable energy sources because they satisfy sustainability requirements. The present study involves a survey regarding the technological characteristics for sugarcane and sweet sorghum energy crops, in addition to their potential for bioethanol production. An exploratory survey was conducted regarding the agronomic and technological characteristics of cane and sorghum. Pre-inmates were produced with YPSAC 5% liquid medium, sterilized and 0.10 grams of yeasts FT858 and Pedra-2 were inoculated and incubated at 30 °C for 10 h at 250 rpm. After the production, the cells were recovered by centrifugation, at 105 rpm, resulting in a 10 mg mg-1 concentration of moist dough. This dough was subsequently inoculated in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass; Saccharomyces cerevisiae; Bioethanol. |
| Ano: 2022 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6719 |
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| Salehi, Rouhollah; Taghizadeh-Alisaraei, Ahmad; Jahanbakhshi, Ahmad; Shahidi, Fakhri. |
| As the world progresses, more energy is required to get along with everyday changes. Using bio-ethanol as one of the most important bio-fuels is an appropriate response to those changes. Much agricultural waste is being produced in Iran and the combination of such waste can turn it into a good source for the production of bio-ethanol. Thus, in this study, the amount of bioethanol extracted from melon waste was measured and evaluated. To do so, considering the 15 kg capacity of the device's fermenter, 12 kg of refined melon sugar syrup and three kilograms of water (with the standard ratio of 4 to 1), i.e. a total of 15 kg of substrate with the brix degree of 20, as well as 75 gr of saccharomyces cervisiae yeast, cultured in standard conditions (5 grams of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioethanol; Melon waste; Fermenter; Saccharomyces cervisiae; Fermentation. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4821 |
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| Li,Yun-Cheng; Gou,Zi-Xi; Zhang,Ying; Xia,Zi-Yuan; Tang,Yue-Qin; Kida,Kenji. |
| ABSTRACT Lignocellulose-derived inhibitors have negative effects on the ethanol fermentation capacity of Saccharomyces cerevisiae. In this study, the effects of eight typical inhibitors, including weak acids, furans, and phenols, on glucose and xylose co-fermentation of the recombinant xylose-fermenting flocculating industrial S. cerevisiae strain NAPX37 were evaluated by batch fermentation. Inhibition on glucose fermentation, not that on xylose fermentation, correlated with delayed cell growth. The weak acids and the phenols showed additive effects. The effect of inhibitors on glucose fermentation was as follows (from strongest to weakest): vanillin > phenol > syringaldehyde > 5-HMF > furfural > levulinic acid > acetic acid > formic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Industrial Saccharomyces cerevisiae; Bioethanol; Glucose and xylose co-fermentation; Inhibitor tolerance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000400791 |
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| Tao,Nengguo; Gao,Yumei; Liu,Yuejin. |
| A yeast strain designated as Y-1 was isolated and characterized from wine yeast ("Jiuqu"). Based on the morphological and biochemical results, along with the rDNA internal transcribed spacer region (ITS), Y-1 was identified to be a Pichia anomala strain. Y-1 is an ethanol-tolerant strain, enduring ethanol concentrations of up to 14 %. Y-1 growth medium conditions were optimized, results showing good growth in medium with pH ranges from 3.5-6.5, temperature ranges from 25-30 °C, and inoculums range of 8 %-12 %, while optimum growth conditions were reached at a temperature of 30 °C, pH 5.0, and inoculums of 10 %. Furthermore, when the alkaline hydrolyzed Shatian pummelo peel solutions were inoculated with 10 % Y-1 and fermented at 30 °C for 6 d, 4.7 % pure... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioethanol; Gas chromatography analysis; Jiuqu; Pichia anomala. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200031 |
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| Acharya,Somen; Chaudhary,Anita. |
| Most of the potential bioprospecting is currently related to the study of the extremophiles and their potential use in industrial processes. Recently microbial cellulases find applications in various industries and constitute a major group of industrial enzymes. Considerable amount of work has been done on microbial cellulases, especially with resurgence of interest in biomass ethanol production employing cellulases and use of cellulases in textile and paper industry. Most efficient method of lignocellulosic biomass hydrolysis is through enzymatic saccharification using cellulases. Significant information has also been gained about the physiology of thermophilic cellulases producers and process development for enzyme production and biomass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lignocelluloses; Bioethanol; Cellulase; Thermophiles. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300001 |
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| Cabral,Mirelle Márcio Santos; Abud,Ana Karla de Souza; Silva,Carlos Eduardo de Farias; Almeida,Renata Maria Rosas Garcia. |
| ABSTRACT: Population growth and the increasing search for healthy foods have led to a major consumption of coconut water and, hence, to an environmental impact caused by the inappropriate disposal of green coconut husks. This lignocellulosic biomass has deserved attention of researchers concerning the seeking of new usages, as, for example, in renewable fuels production technologies. This study examines the potential of green coconut husk fibers as a feedstock for the production of bioethanol. The coconut fibers were pretreated through an alkaline method, hydrolyzed enzymatically and submitted to ethanol fermentation with commercial yeasts of Saccharomyces cerevisiae. Despite the significant loss of cellulose (4.42% in relation to the fiber and 17.9%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reuse; Coconut husk; Fermentation; Bioethanol. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001872 |
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| López Vázquez, Pascual. |
| El presente estudio se realizó con el objetivo de evaluar la producción de guarapo y bioetanol en siete variedades de caña de azúcar COLPOSCTMEX, mediante la incorporación de tres niveles de fermento (Sacharomyces cerevisiae). Se determino la producción de guarapo por variedad, °brix, pH inicial, tiempo de fermentación, °brix y pH final de la fermentación, también se determino el grado alcohol y el rendimiento de alcohol por variedad. El jugo se extrajo de 20 tallos por variedad, la variedad COLPOSCTMEX 05-223 con 42.97 Kg que fue el mejor, debido a que los tallos de esta variedad son suculenta, en cuanto a la cantidad de jugo las variedades COLPOSCTMEX 05-223 con 48.2 litros, en el análisis estadístico se obtuvo diferencias (p=≥0.05) entre variedades. Con... |
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Palavras-chave: Bioetanol; Sacharomyces cerevisiae; Caña de azúcar; Bioethanol; Cane sugar; Producción Agroalimentaria en el Trópico; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2009 |
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| Dalla Marta, Anna; DIPSA-University of Firenze; anna.dallamarta@unifi.it; Natali, Francesca; DIPSA-University of Firenze;; Mancini, Marco; DIPSA-University of Firenze;; Ferrise, Roberto; DIPSA-University of Firenze;; Bindi, Marco; DIPSA-University of Firenze;; Orlandini, Simone; DIPSA-University of Firenze;. |
| The contribution of agrobiomasses, as a source of energy, to the reduction of greenhouse gas emissions was confirmed by several studies. Biomass from agriculture represents one of the larger and more diverse sources to exploit and in particular ethanol and diesel have the potential to be a sustainable replacement for fossil fuels, mainly for transport purposes. However, the cultivation of energy crops dedicated to the production of biofuels presents some potential problems, e.g., competitiveness with food crops, water needs, use of fertilizers, etc., and the economic, energy, and environmental convenience of such activity depends on accurate evaluations about the global efficiency of the production system. In this study, the processes related to the... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Agroenergy; Bioethanol; Energy balance; Pure vegetable oil; Water balance. |
| Ano: 2011 |
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| Ferreira,Verônica; Faber,Mariana de Oliveira; Mesquita,Sabrina da Silva; Pereira Jr,Nei. |
| In Brazil, the production of ethanol from sugarcane produces large amounts of lignocellulosic residues (bagasse and straw), which have been driving research and development for the production of second generation ethanol. In the present work, a recombinant Saccharomyces cerevisiae strain expressing the β-glucosidase gene from Humicola grisea was used for ethanol production from three different cellulosic sources by simultaneous saccharification and fermentation. Initially, a enzymatic pre-hydrolysis step was done with a solid:liquid ratio of 1:4, and an enzymatic load of 25 filter paper activity (FPU).g-1 of cellulosic substrate. Using sugarcane bagasse pretreated cellulignin, crystalline cellulose and carboxymethyl cellulose, 51.7 g L-1, 41.7 g... |
| Tipo: Journal article |
Palavras-chave: Bioethanol; Lignocellulosic biomass; Sugarcane bagasse derived cellulignin. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000200005 |
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| Choudhary,Jairam; Singh,Surender; Nain,Lata. |
| Lignocellulosic biomass is the most abundant renewable source of energy that has been widely explored as second-generation biofuel feedstock. Despite more than four decades of research, the process of ethanol production from lignocellulosic (LC) biomass remains economically unfeasible. This is due to the high cost of enzymes, end-product inhibition of enzymes, and the need for cost-intensive inputs associated with a separate hydrolysis and fermentation (SHF) process. Thermotolerant yeast strains that can undergo fermentation at temperatures above 40°C are suitable alternatives for developing the simultaneous saccharification and fermentation (SSF) process to overcome the limitations of SHF. This review describes the various approaches to screen and develop... |
| Tipo: Journal article |
Palavras-chave: Bioethanol; Biofuel; Enzymes; Genome shuffling; Lignocellulosic biomass. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582016000300013 |
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| Registros recuperados: 34 | |
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