Bioethanol production from thick juice as intermediate of sugar beet processing

Dodić, Siniša; Popov, Stevan; Dodić, Jelena; Ranković, Jovana; Zavargo, Zoltan Z.; ́, R. Jevtic ́-Mučibabic

doi:10.1016/j.biombioe.2009.01.002

Cited by 102 publications

(50 citation statements)

References 12 publications

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“…Bioethanol production from lignocellulosic materials (second generation (2G) bioethanol), including pretreatment processes and enzymes technology for cellulose saccharification, has been investigated with increasing interest for the past few years [36], due to the growing concerns about climate change, increased energy demand and the forecast depletion of fossil resources [10,32].…”

Section: Introductionmentioning

confidence: 99%

Simulation of integrated first and second generation bioethanol production from sugarcane: comparison between different biomass pretreatment methods

Dias

Cunha

Filho

et al. 2010

J Ind Microbiol Biotechnol

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Sugarcane bagasse is used as a fuel in conventional bioethanol production, providing heat and power for the plant; therefore, the amount of surplus bagasse available for use as raw material for second generation bioethanol production is related to the energy consumption of the bioethanol production process. Pentoses and lignin, byproducts of the second generation bioethanol production process, may be used as fuels, increasing the amount of surplus bagasse. In this work, simulations of the integrated bioethanol production process from sugarcane, surplus bagasse and trash were carried out. Selected pre-treatment methods followed, or not, by a delignification step were evaluated. The amount of lignocellulosic materials available for hydrolysis in each configuration was calculated assuming that 50% of sugarcane trash is recovered from the field. An economic risk analysis was carried out; the best results for the integrated first and second generation ethanol production process were obtained for steam explosion pretreatment, high solids loading for hydrolysis and 24-48 h hydrolysis. The second generation ethanol production process must be improved (e.g., decreasing required investment, improving yields and developing pentose fermentation to ethanol) in order for the integrated process to be more economically competitive.

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Section: Introductionmentioning

confidence: 99%

Simulation of integrated first and second generation bioethanol production from sugarcane: comparison between different biomass pretreatment methods

Dias

Cunha

Filho

et al. 2010

J Ind Microbiol Biotechnol

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show abstract

“…Most of the European bioethanol production is in France, followed by Germany and Spain. However, there is interest in exploring or expanding the use of sugar beet as a bioethanol feedstock in a number of European countries, such as Ireland (Power et al 2008), but especially in Eastern European nations (Kondili and Kaldellis 2007) including Slovenia (Krajnc et al 2007) and Serbia (Dodic et al 2009). In the Americas, Brazil (from sugar cane) and the U.S. (from maize) are the major ethanol producers and users.…”

Section: Future Needs and Developmentsmentioning

confidence: 98%

Sugar Beet as an Energy Crop

Panella

2010

Sugar Tech

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The combination of volatility in the oil market and finite oil resources and the effect on global climate change from the addition of CO 2 to the atmosphere as a result of burning fossil fuels has increased the interest in sustainable energy generation from renewable biofuels. Most 1st generation biofuels in current production are liquid with bioethanol the product of fermentation. Sugar beet provides an abundance of sucrose, which is easily fermented by many microbes and on a per hectare basis; sugar beet is one of the most efficient sources of ethanol, however storage of harvested roots is problematic. Most studies have indicated sustainable biofuels have reduced greenhouse gas emissions (GHG) when compared to petroleum based fuels. Bioethanol from sugar beet reduces GHG comparably or superiorly to maize or sugarcane. There also are other biofuels from fermentation, including biomethanol, biobutanol ETBE, biomethane, and biohydrogen, many of which are more energy dense than ethanol. Storage of sugar beet is a problem that could be solved by ensilage and anaerobic digestion producing a biogas, which could yield more energy per hectare than bioethanol. As the global economy moves away from fossil fuels, sugar beet will play an increasing role in the adoption of more sustainable energy generation.

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“…13,72,73 The major challenge would be to concentrate the wastewater streams to about 20% sugar, which is optimal for ethanol production. 98 If fruit streams could be handled or sorted such that high sugar streams are available, direct fermentation to ethanol could be one approach to produce ethanol for in-house energy generation, or for local use in ethanol-gel, a safe and renewable replacement for kerosene. 99 Examples of ethanol production from fruit wastewater have been reported from apple pomace 100 and citrus leachate 101 .…”

Section: Potential Production Of Biofuels From Fruit Waste Streamsmentioning

confidence: 99%

Fruit waste streams in South Africa and their potential role in developing a bio-economy

Khan¹,

Roes‐Hill²,

Welz³

et al. 2015

S. Afr. J. Sci.

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Current and previous studies on bio-based (fruit) wastes and wastewaters, with a particular emphasis on research in South Africa, were reviewed. Previous studies have focused predominantly on the beneficiation and application of fruit waste as a feedstock for renewable energy. A definite gap in knowledge and application of fruit waste streams with regard to enzyme production as a value-added product is identified. The characteristics and composition of each type of fruit waste are highlighted and their potential as feedstocks in the production of value-added products is identified. The conversion of agri-industrial wastewaters to bioenergy and value-added products is discussed, with special mention of the newly published South African Bio-Economy Strategy, and the potential production of biofuels and enzymes from waste streams using recombinant Aspergillus strains. Finally, to maximise utilisation of waste streams in South Africa and abroad, a conceptual model for an integrated system using different technologies is proposed.

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Bioethanol production from thick juice as intermediate of sugar beet processing

Cited by 102 publications

References 12 publications

Simulation of integrated first and second generation bioethanol production from sugarcane: comparison between different biomass pretreatment methods

Simulation of integrated first and second generation bioethanol production from sugarcane: comparison between different biomass pretreatment methods

Sugar Beet as an Energy Crop

Fruit waste streams in South Africa and their potential role in developing a bio-economy

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