Journal ArticleDOI
Biochemistry and physiology of xylose fermentation by yeasts
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TLDR
The redox imbalance in the initial conversion of xylose to xylulose, sensitivity to high concentraions of ethanol, differences in the respiratory pathway and sensitivity to microbial inhibitors, have been identified as major factors limiting ethanol fermentation by the xylOSE-fermenting yeasts.About:
This article is published in Enzyme and Microbial Technology.The article was published on 1994-11-01. It has received 209 citations till now. The article focuses on the topics: Pichia stipitis & Ethanol fermentation.read more
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Hemicellulose bioconversion
TL;DR: In this article, various pre-treatment options as well as enzymatic saccharification of lignocellulosic biomass to fermentable sugars are reviewed and the barriers, progress, and prospects of developing an environmentally benign bioprocess for large-scale conversion of hemicellulose to fuel ethanol, xylitol, 2,3-butanediol, and other value added fermentation products are highlighted.
Journal ArticleDOI
Hemicelluloses for fuel ethanol: A review.
Francisco M. Gírio,César Fonseca,Florbela Carvalheiro,Luís C. Duarte,Susana Marques,Rafał Bogel-Łukasik +5 more
TL;DR: The various hemicelluloses structures present in lignocellulose, the range of pre-treatment and hydrolysis options including the enzymatic ones, and the role of different microbial strains on process integration aiming to reach a meaningful consolidated bioprocessing are reviewed.
Journal ArticleDOI
Fermentation of lignocellulosic hydrolysates for ethanol production.
TL;DR: In this article, different fermentation organisms among bacteria, yeast, and recombinant were reviewed with emphasis on their performance in lignocellulosic hydrolysates, i.e., can withstand potential inhibitors.
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Fuel ethanol production from lignocellulose: a challenge for metabolic engineering and process integration.
TL;DR: Improvement of the fermentation process is just one of several factor that needs to be fully optimized and integrated to generate a competitive lignocellulose ethanol plant.
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OVERVIEW AND EVALUATION OF FUEL ETHANOL FROM CELLULOSIC BIOMASS: Technology, Economics, the Environment, and Policy
TL;DR: In this article, it is shown that ethanol may be more compatible with fuel cell-powered vehicles than has generally been assumed, and it is likely that vehicles can be configured so that exhaust emissions of priority pollutants are very low for ethanol-burning engines, although the same can probably be said for most other fuels under consideration.
References
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Journal ArticleDOI
Xylose fermentation by Saccharomyces cerevisiae
Peter Kötter,Michael Ciriacy +1 more
TL;DR: Limitations of xylose utilization in S. cerevisiae cells are very likely caused by an insufficient capacity of the non-oxidative pentose phosphate pathway, as indicated by accumulation of sedoheptulose-7-phosphate and the absence of fructose-1,6-bisph phosphate and pyruvate accumulation.
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Enzymic analysis of the crabtree effect in glucose-limited chemostat cultures of Saccharomyces cerevisiae.
TL;DR: The physiology of Saccharomyces cerevisiae CBS 8066 was studied in glucose-limited chemostat cultures and it was concluded that the occurrence of alcoholic fermentation is not primarily due to a limited respiratory capacity, but rather, organic acids produced by the organism may have an uncoupling effect on its respiration.
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Anaerobic nutrition of saccharomyces cerevisiae. II. Unsaturated fatty and requirement for growth in a defined medium
A. A. Andreasen,T. J. B. Stier +1 more
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NADH-linked aldose reductase: The key to anaerobic alcoholic fermentation of xylose by yeasts
TL;DR: The finding that the rate of xylose fermentation in Pa. tannophilus and Pi.
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Combined effect of acetic acid ph and ethanol on intracellular ph of fermenting yeast
TL;DR: The internal pH of Saccharomyces cerevisiae IGC 3507 III (a respiratory-deficient mutant) was measured by the distribution of [14C]propionic acid, when the yeast was fermenting glucose at pH 3.5, 4.5 and 5 in the presence of several concentrations of acetic acid and ethanol.