ArticleBiotechnology for biofuels2014
Utilization of household food waste for the production of ethanol at high dry material content.
Article in Biotechnology for biofuels, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Brazilian Food Waste as a Substrate for Bioethanol Production.Foods (Basel, Switzerland) · 2024Article
- Renewable Butanol Production via Catalytic Routes.International journal of environmental research and public health · 2021Review
- Evaluation of organic fractions of municipal solid waste as renewable feedstock for succinic acid production.Biotechnology for biofuels · 2020Article
- Growth, substrate consumption, and product formation kinetics of3 Biotech · 2018Article
- Acid Assisted Organosolv Delignification of Beechwood and Pulp Conversion towards High Concentrated Cellulosic Ethanol via High Gravity Enzymatic Hydrolysis and Fermentation.Molecules (Basel, Switzerland) · 2018Article
- A novel hybrid organosolv: steam explosion method for the efficient fractionation and pretreatment of birch biomass.Biotechnology for biofuels · 2018Article
- Butanol production from food waste: a novel process for producing sustainable energy and reducing environmental pollution.Biotechnology for biofuels · 2015Article
- Revealing the factors influencing a fermentative biohydrogen production process using industrial wastewater as fermentation substrate.Biotechnology for biofuels · 2014Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEnvironmental issues and shortage of fossil fuels have turned the public interest to the utilization of renewable, environmentally friendly fuels, such as ethanol. In order to minimize the competition between fuels and food production, researchers are focusing their efforts to the utilization of wastes and by-products as raw materials for the production of ethanol. household food wastes are being produced in great quantities in European Union and their handling can be a challenge. Moreover, their disposal can cause severe environmental issues (for example emission of greenhouse gasses). On the other hand, they contain significant amounts of sugars (both soluble and insoluble) and they can be used as raw material for the production of ethanol.
resultsHousehold food wastes were utilized as raw material for the production of ethanol at high dry material consistencies. A distinct liquefaction/saccharification step has been included to the process, which rapidly reduced the viscosity of the high solid content substrate, resulting in better mixing of the fermenting microorganism. This step had a positive effect in both ethanol production and productivity, leading to a significant increase in both values, which was up to 40.81% and 4.46 fold, respectively. Remaining solids (residue) after fermentation at 45% w/v dry material (which contained also the unhydrolyzed fraction of cellulose), were subjected to a hydrothermal pretreatment in order to be utilized as raw material for a subsequent ethanol fermentation. This led to an increase of 13.16% in the ethanol production levels achieving a final ethanol yield of 107.58 g/kg dry material.
conclusionsIn conclusion, the ability of utilizing household food waste for the production of ethanol at elevated dry material content has been demonstrated. A separate liquefaction/saccharification process can increase both ethanol production and productivity. Finally, subsequent fermentation of the remaining solids could lead to an increase of the overall ethanol production yield.
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