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Cong T Trinh
Applied microbiology and biotechnology, 95(4), 1083-1094 (2012-06-09)
Elementary mode (EM) analysis based on the constraint-based metabolic network modeling was applied to elucidate and compare complex fermentative metabolisms of Escherichia coli for obligate anaerobic production of n-butanol and isobutanol. The result shows that the n-butanol fermentative metabolism was
Amélie Slegers et al.
Molecules (Basel, Switzerland), 20(6), 10980-11016 (2015-06-18)
Developed from crosses between Vitis vinifera and North American Vitis species, interspecific hybrid grape varieties are becoming economically significant in northern areas, where they are now extensively grown for wine production. However, the varietal differences between interspecific hybrids are not
Jacek Sein Anand et al.
Przeglad lekarski, 69(8), 589-591 (2012-12-19)
We presented the male who was addicted to ethanol, and who drank the mixture of different toxic alcohols. Toxicological screening of ingested fluid found 42% vol propan-1-OL, and 17% vol propan-2-OL (isopropanol). After regaining consciousness, the patient stated that substance
Determination of inorganic phosphate.
Martin JB and Doty DM.
Analytical Chemistry, 21(8), 965-967 (1949)
Prasenjit Seal et al.
The Journal of chemical physics, 136(3), 034306-034306 (2012-01-28)
The purpose of the present investigation is to calculate partition functions and thermodynamic quantities, viz., entropy, enthalpy, heat capacity, and Gibbs free energies, for 1-butanol, 2-methyl-1-propanol, and butanal in the vapor phase. We employed the multi-structural (MS) anharmonicity method and
Stéphanie Rollero et al.
Applied microbiology and biotechnology, 99(5), 2291-2304 (2014-11-22)
Volatile compounds produced by yeast during fermentation greatly influence the organoleptic qualities of wine. We developed a model to predict the combined effects of initial nitrogen and phytosterol content and fermentation temperature on the production of volatile compounds. We used
Shanshan Li et al.
Biotechnology letters, 34(12), 2253-2258 (2012-09-04)
High-level constitutive gene expression can result in cellular metabolic imbalance and limit production. To circumvent these problems, a P(alsSD)-controlled auto-inducible 2-ketoisovalerate biosynthetic pathway and a P(spac)-controlled IPTG-inducible Ehrlich pathway were constructed in Bacillus subtilis to modulate gene expression. Based on
Xiaoqiang Jia et al.
Applied biochemistry and biotechnology, 168(1), 1-9 (2011-05-04)
Isobutanol can be biosynthesized via α-ketoisovalerate catalyzed by heterologous keto acid decarboxylase (KDC) and alcohol dehydrogenase (ADH). In this work, isobutanol biosynthesis pathway was designed in Bacillus subtilis, a notable solvent-tolerant host. In order to do that, a plasmid pPKA
Han Li et al.
Science (New York, N.Y.), 335(6076), 1596-1596 (2012-03-31)
One of the major challenges in using electrical energy is the efficiency in its storage. Current methods, such as chemical batteries, hydraulic pumping, and water splitting, suffer from low energy density or incompatibility with current transportation infrastructure. Here, we report
D Norbäck et al.
Occupational and environmental medicine, 52(6), 388-395 (1995-06-01)
As a part of the worldwide European Community respiratory health survey, possible relations between symptoms of asthma, building characteristics, and indoor concentration of volatile organic compounds (VOCs) in dwellings were studied. The study comprised 88 subjects, aged 20-45 years, from
Christoph A Wehe et al.
Journal of the American Society for Mass Spectrometry, 26(8), 1274-1282 (2015-05-08)
One of the most common setups for elemental bioimaging, the hyphenation of a laser ablation (LA) system and an inductively coupled plasma mass spectrometer (ICP-MS), was expanded by adding full scan mass spectrometric information as another dimension of information. While
Cong T Trinh et al.
Applied and environmental microbiology, 77(14), 4894-4904 (2011-06-07)
Fermentation enables the production of reduced metabolites, such as the biofuels ethanol and butanol, from fermentable sugars. This work demonstrates a general approach for designing and constructing a production host that uses a heterologous pathway as an obligately fermentative pathway
Jiao Liu et al.
Biotechnology for biofuels, 8, 108-108 (2015-08-04)
Few strains have been found to produce isobutanol naturally. For building a high performance isobutanol-producing strain, rebalancing redox status of the cell was very crucial through systematic investigation of redox cofactors metabolism. Then, the metabolic model provided a powerful tool
Jeremy J Minty et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(36), 14592-14597 (2013-08-21)
Synergistic microbial communities are ubiquitous in nature and exhibit appealing features, such as sophisticated metabolic capabilities and robustness. This has inspired fast-growing interest in engineering synthetic microbial consortia for biotechnology development. However, there are relatively few reports of their use
Jingnan Lu et al.
Applied microbiology and biotechnology, 96(1), 283-297 (2012-08-07)
Wild-type Ralstonia eutropha H16 produces polyhydroxybutyrate (PHB) as an intracellular carbon storage material during nutrient stress in the presence of excess carbon. In this study, the excess carbon was redirected in engineered strains from PHB storage to the production of
Deng-Rong Xiao et al.
Scientific reports, 5, 17120-17120 (2015-11-27)
The aroma attributes of sulfurous, mushroom and earthy are the most important characteristics of the aroma of Tuber melanosporum. However, these three aroma attributes are absent in the T. melanosporum fermentation system. To improve the quality of the aroma, repeated
Fumio Matsuda et al.
Bioscience, biotechnology, and biochemistry, 76(11), 2139-2141 (2012-11-08)
To increase isobutanol production in Saccharomyces cerevisiae, the valine biosynthetic pathway was activated by overexpression of the relevant enzymes in the mitochondria and the cytosol. Native mitochondrial enzymes were overepxressed in the cytosol by deleting the mitochondrial transit peptides. The
Won-Heong Lee et al.
Bioprocess and biosystems engineering, 35(9), 1467-1475 (2012-05-01)
Engineering of Saccharomyces cerevisiae to produce advanced biofuels such as isobutanol has received much attention because this yeast has a natural capacity to produce higher alcohols. In this study, construction of isobutanol production systems was attempted by overexpression of effective
Luis H Reyes et al.
Applied and environmental microbiology, 79(17), 5313-5320 (2013-07-03)
Cross-tolerance and antagonistic pleiotropy have been observed between different complex phenotypes in microbial systems. These relationships between adaptive landscapes are important for the design of industrially relevant strains, which are generally subjected to multiple stressors. In our previous work, we
Giulia Caron et al.
Journal of medicinal chemistry, 48(9), 3269-3279 (2005-04-29)
Growing interest in the use of both the logarithm of the partition coefficient of the neutral species in the alkane/water system (log P(N)(alk)) and the difference between log P(N)(oct) (the logarithm of the partition coefficient of the neutral species in
Michael H Abraham et al.
European journal of medicinal chemistry, 43(3), 478-485 (2007-06-05)
Values of in vitro gas to lung partition coefficients, K(lung), of VOCs have been collected from the literature. For 44 VOCs, application of the Abraham solvation equation to log K(lung) yielded a correlation with R(2)=0.968 and S.D.=0.25 log units. Combination
Konstantinos Grintzalis et al.
Applied and environmental microbiology, 80(18), 5561-5571 (2014-07-09)
We show here that oxidative stress is involved in both sclerotial differentiation (SD) and aflatoxin B1 biosynthesis in Aspergillus flavus. Specifically, we observed that (i) oxidative stress regulates SD, as implied by its inhibition by antioxidant modulators of reactive oxygen
Dawid Brat et al.
FEMS yeast research, 13(2), 241-244 (2013-01-03)
Simultaneous overexpression of an optimized, cytosolically localized valine biosynthesis pathway together with overexpression of xylose isomerase XylA from Clostridium phytofermentans, transaldolase Tal1 and xylulokinase Xks1 enabled recombinant Saccharomyces cerevisiae cells to complement the valine auxotrophy of ilv2,3,5 triple deletion mutants
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation
Genny A Pang et al.
The journal of physical chemistry. A, 116(19), 4720-4725 (2012-04-21)
This work presents the first direct experimental study of the rate constant for the reaction of OH with iso-butanol (2-methyl-1-propanol) at temperatures from 907 to 1147 K at near-atmospheric pressures. OH time-histories were measured behind reflected shock waves using a
Ramsey I Zeitoun et al.
Nature biotechnology, 33(6), 631-637 (2015-03-24)
Multiplexed genome engineering approaches can be used to generate targeted genetic diversity in cell populations on laboratory timescales, but methods to track mutations and link them to phenotypes have been lacking. We present an approach for tracking combinatorial engineered libraries
Quan Chi et al.
Luminescence : the journal of biological and chemical luminescence, 30(7), 990-995 (2015-02-03)
The chemiluminescence (CL) of lucigenin (Luc(2+)) can be enhanced by different alcohols in alkaline solution. The effect of different fatty alcohols on the CL of lucigenin was related to the carbon chain length and the number of hydroxyl groups. Glycerol
Shanshan Li et al.
Microbial cell factories, 11, 101-101 (2012-08-07)
Isobutanol is considered as a leading candidate for the replacement of current fossil fuels, and expected to be produced biotechnologically. Owing to the valuable features, Bacillus subtilis has been engineered as an isobutanol producer, whereas it needs to be further
N Bilzer et al.
Blutalkohol, 27(6), 385-409 (1990-11-01)
I. In several experiments the kinetics and questionable mutial influences of Methanol, Propanol-1 and Isobutanol were examined while Ethanol was present. II. In five different experiments 30 persons got separate congeners (7 mg Methanol/kg body weight, 5 mg Propanol-1/kg body
R Zernecke et al.
Rhinology, 49(3), 331-336 (2011-08-23)
The detection threshold task of the Sniffin` Sticks can be conducted using two different odorants - n-butanol or phenylethyl alcohol (PEA). Previous studies show contradictory results regarding the correlation analysis of the two odorants. The current study investigated the relationship
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