Present work deals with the biotechnological production of fuel ethanol from different raw materials. The different technologies for producing fuel ethanol from sucrose-containing feedstocks (mainly sugar cane), starchy materials and lignocellulosic biomass are described along with the major research trends for improving them. The complexity of the biomass processing is recognized through the analysis of the different stages involved in the conversion of lignocellulosic complex into fermentable sugars. The features of fermentation processes for the three groups of studied feedstocks are discussed. Comparative indexes for the three major types of feedstocks for fuel ethanol production are presented. Finally, some concluding considerations on current research and future tendencies in the production of fuel ethanol regarding the pretreatment and biological conversion of the feedstocks are presented.
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http://dx.doi.org/10.1016/j.biortech.2007.11.013 | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Faculty of Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Krakow, Poland.
Hydrogen, a sustainable and environmentally friendly fuel, can be obtained through the ethanol steam reforming (ESR) process. The most promising catalysts for this process are those based on non-noble metals such as cobalt. The activity, selectivity, and stability of these catalysts strongly depend on the presence of alkali dopants.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati - 781039, Assam, India.
The upgrading of ethanol to -butanol marks a major breakthrough in the field of biofuel technology, offering the advantages of compatibility with existing infrastructure while simultaneously offering potential benefits in terms of transport efficiency and energy density. With its lower vapour pressure and reduced corrosiveness compared to ethanol, -butanol is easier not only to manage but also to transport, eliminating the need for costly infrastructure changes. This leads to improved fuel efficiency and reduced fuel consumption.
View Article and Find Full Text PDFBioresour Technol
January 2025
School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, No. 2 Xuelin Road, Nanjing 210097, China. Electronic address:
Lignocellulosic biomass is the most abundant form of biomass available for fuel production, serving as the fourth leading energy source globally. However, inhibitors generated during pretreatment processes often hinder fermentation performance and conversion efficiency. In this study, we developed an enhanced computer-assisted enzyme cocktail strategy (ComEC 2.
View Article and Find Full Text PDFEnviron Pollut
January 2025
Divisão de Recursos Microbianos, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas (CPQBA), Universidade Estadual de Campinas (UNICAMP), CEP 13148-218, Paulínia, SP, Brasil.
The use of biofuel blends with fossil fuels is widespread globally, raising concerns over novel contamination types in environments impacted by these mixtures. This study investigates the microbial functional in soils contaminated by biofuel and fossil fuel blends and subjected to various bioremediation treatments. Using metagenomic analysis, it was compared hydrocarbon degradation functional profiles across areas polluted with ethanol/gasoline and biodiesel/diesel blends.
View Article and Find Full Text PDFJ Magn Reson
January 2025
Department of Chemistry, Seoul National University, Seoul 08826 Republic of Korea; Advanced Institutes of Convergence Technology, Suwon 16229 Republic of Korea. Electronic address:
Most NMR samples are cylindrical, which is ideal for obtaining high-resolution NMR spectra, especially in superconducting magnets with a vertical bore. However, expanding NMR applicability to samples that are not necessarily cylindrical requires a new approach. In this study, we introduce a method for obtaining solution NMR signals from flat samples, such as flat containers or layered structures like a fuel cell.
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