Track topics on Twitter Track topics that are important to you
Degradation of lignocellulose with pressurised hot water is an efficient method of bioethanol production. However, the resultant solution inhibits ethanol fermentation by Saccharomyces cerevisiae. Here, we first report that glycolaldehyde, which is formed when lignocellulose is treated with pressurised hot water, inhibits ethanol fermentation. The final concentration of glycolaldehyde formed by the treatment of lignocellulose with pressurised hot water ranges from 1 to 24 mM, and 1-10 mM glycolaldehyde was sufficient to inhibit fermentation. This result indicates that glycolaldehyde is one of the main substances responsible for inhibiting fermentation after pressurised hot water degradation of lignocellulose. Genome-wide screening of S. cerevisiae revealed that genes encoding alcohol dehydrogenase, methylglyoxal reductase, polysomes, and the ubiquitin ligase complex are required for glycolaldehyde tolerance. These novel findings will provide new perspectives on breeding yeast for bioethanol production from biomass treated with pressurised hot water.
Department of Environmental Sciences, Faculty of Agriculture, Saga University, Saga, 840-8502, Japan.
This article was published in the following journal.
Name: Biotechnology letters
Separate hydrolysis fermentation (SHF) and simultaneous saccharification fermentation (SSF) processes were studied for bioethanol production from microalgal biomass. SSF was selected as an efficient p...
Acetic acid is one of the major inhibitors in lignocellulose hydrolysates used for the production of second-generation bioethanol. Although several genes have been identified in laboratory yeast strai...
Fermentation at low temperatures is one of the most popular current winemaking practices because of its reported positive impact on the aromatic profile of wines. However, low temperature is an additi...
In the present study, evaluation and optimization of taro waste (TW), which was mainly composed of taro peels that contain many starch residues, as the main carbon source in medium were studied. The f...
Most studies on dough properties are performed on yeastless dough to exclude the complicating, time-dependent effect of yeast. Baker's yeast, however, impacts dough matrix properties during fermentati...
Persons with schizophrenia experience imaginary voices, visions and disorganized thoughts, and are handicapped when it comes to social life, which is detrimental to the affected individual...
The aim of this study was to elucidate genetic susceptibility of patients with nontuberculous mycobacterial lung disease using genome-wide association study.
A large body of evidence confirm the cholesterol lowering effect of phytosterols and red yeast rice. Because their mechanisms of action mime the ones of chemical statins and cholesterol ab...
To reveal the genetic determinants of the treatment outcome of escitalopram in depressed patients (by using candidate gene approach and whole genome scanning).
This prospective nation-wide (France) study aims to search for susceptibility genes in MVP using a genome wide analysis and comparing results obtained in 1000 patients with MVP and 1000 n...
An enzyme that catalyzes the oxidation of glycolaldehyde to glycolate, using NAD and NADP as COENZYMES.
A genus of the ascomycetous yeast in the family Saccharomycodaceae, order SACCHAROMYCETALES, that contributes to the spontaneous fermentation of cider. Anamorphic forms are in the genus KLOECKERA.
An analysis comparing the allele frequencies of all available (or a whole GENOME representative set of) polymorphic markers in unrelated patients with a specific symptom or disease condition, and those of healthy controls to identify markers associated with a specific disease or condition.
Mold and yeast inhibitor. Used as a fungistatic agent for foods, especially cheeses.
Protein factors released from one species of YEAST that are selectively toxic to another species of yeast.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...