| Title |
Inhibition of ethanol-producing yeast and bacteria by degradation products produced during pre-treatment of biomass
|
|---|---|
| Published in |
Applied Microbiology and Biotechnology, August 2004
|
| DOI | 10.1007/s00253-004-1642-2 |
| Pubmed ID | |
| Authors |
H. B. Klinke, A. B. Thomsen, B. K. Ahring |
| Abstract |
An overview of the different inhibitors formed by pre-treatment of lignocellulosic materials and their inhibition of ethanol production in yeast and bacteria is given. Different high temperature physical pre-treatment methods are available to render the carbohydrates in lignocellulose accessible for ethanol fermentation. The resulting hydrolyzsates contain substances inhibitory to fermentation-depending on both the raw material (biomass) and the pre-treatment applied. An overview of the inhibitory effect on ethanol production by yeast and bacteria is presented. Apart from furans formed by sugar degradation, phenol monomers from lignin degradation are important co-factors in hydrolysate inhibition, and inhibitory effects of these aromatic compounds on different ethanol producing microorganisms is reviewed. The furans and phenols generally inhibited growth and ethanol production rate (Q(EtOH)) but not the ethanol yields (Y(EtOH)) in Saccharomyces cerevisiae. Within the same phenol functional group (aldehyde, ketone, and acid) the inhibition of volumetric ethanol productivity was found to depend on the amount of methoxyl substituents and hence hydrophobicity (log P). Many pentose-utilizing strains Escherichia coli, Pichia stipititis, and Zymomonas mobilis produce ethanol in concentrated hemicellulose liquors but detoxification by overliming is needed. Thermoanaerobacter mathranii A3M3 can grow on pentoses and produce ethanol in hydrolysate without any need for detoxification. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Belgium | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Science communicators (journalists, bloggers, editors) | 1 | 50% |
| Members of the public | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 935 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 8 | <1% |
| Brazil | 5 | <1% |
| Belgium | 3 | <1% |
| Germany | 2 | <1% |
| Colombia | 2 | <1% |
| Netherlands | 2 | <1% |
| South Africa | 2 | <1% |
| France | 1 | <1% |
| Italy | 1 | <1% |
| Other | 10 | 1% |
| Unknown | 899 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 209 | 22% |
| Student > Master | 154 | 16% |
| Researcher | 149 | 16% |
| Student > Bachelor | 96 | 10% |
| Student > Doctoral Student | 42 | 4% |
| Other | 140 | 15% |
| Unknown | 145 | 16% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 286 | 31% |
| Engineering | 119 | 13% |
| Biochemistry, Genetics and Molecular Biology | 113 | 12% |
| Chemistry | 71 | 8% |
| Chemical Engineering | 59 | 6% |
| Other | 91 | 10% |
| Unknown | 196 | 21% |
Attention Score in Context
This research output has an Altmetric Attention Score of 14. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 08 August 2023.
All research outputs
#2,401,273
of 24,119,703 outputs
Outputs from Applied Microbiology and Biotechnology
#215
of 8,034 outputs
Outputs of similar age
#3,420
of 55,785 outputs
Outputs of similar age from Applied Microbiology and Biotechnology
#2
of 31 outputs
Altmetric has tracked 24,119,703 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 90th percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 8,034 research outputs from this source. They receive a mean Attention Score of 4.3. This one has done particularly well, scoring higher than 97% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 55,785 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 93% of its contemporaries.
We're also able to compare this research output to 31 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 93% of its contemporaries.