Sentences with word «isobutanol»

But while those enzymes are active, ones that influence the production of isobutanol can't work.

Single replacement, either Val461 to isoleucine or Ser286 to threonine, increased the Kivd activity significantly, both in vivo and in vitro resulting in increased overall production while isobutanol production was increased more than 3 - methyl -1-butanol production.

Although natural yeast fermentation produces isobutanol, it does so in miniscule amounts.

The DOE designated isobutanol as a «drop - in» replacement for gasoline in 2011.

Efforts to make isobutanol from bacteria alone have been underway since 2000 when the U.S. Department of Agriculture and the U.S. Department of Energy (DOE) began distributing grants to universities that could demonstrate successful production of liquid biofuels.

Gevo, a biotech firm in Englewood, Colo., is engineering bacteria to make isobutanol from sugarcane and cellulosic plant waste.

However, most attempts to create isobutanol biofuel have run into difficulties involving cost or scaling production to an industrial level.

In a March 21 paper in the journal Nature, the researchers reported that they used light to increase yeast's production of the chemical isobutanol as much as 5times higher than previously reported levels in peer - reviewed studies The researchers used a genetically modified strain of the yeast Saccharomyces cerevisiae in the experiments.

The researchers predicted they could use a combination of genetic engineering and light to fine tune isobutanol production.

Using their light - switch technique, the researchers set out to keep the yeast alive while maximizing isobutanol production.

Gevo, Inc., a NARA partner, successfully adapted its patented technologies to convert cellulosic sugars derived from wood waste into renewable isobutanol, which was then converted into Gevo's Alcohol - to - Jet (ATJ) fuel.

A team of researchers at Princeton University has developed a way to cause yeast to produce more isobutanol, a possible candidate for use as a biofuel.

In the present study, we used protein engineering of Kivd to improve isobutanol production in Synechocystis PCC 6803.

Protein engineering of Kivd resulted in both enhanced total catalytic activity and preferential shift towards isobutanol production in Synechocystis PCC 6803.

In addition, he says, they would need to improve the concentration of isobutanol they end up with after fermentation and speed up the production process.

Heterologous expression of the enzyme α - ketoisovalerate decarboxylase (Kivd) in the unicellular cyanobacterium Synechocystis PCC 6803 results in cells producing isobutanol and 3 - methyl -1-butanol, with Kivd identified as a potential bottleneck.

With this new catalyst in the bionic leaf, the team boosted version 2.0's efficiency at producing alcohol fuels like isopropanol and isobutanol to roughly 10 percent.

«The difference between gasoline and isobutanol,» Gallaway says, «is that you're burning something that you just took out of the atmosphere and putting it back.

The result was isobutanol, a colorless, flammable liquid that researchers hope could one day replace gasoline.

Using their new technique, the Princeton researchers have now used fermentation and genetically - engineered yeast to produce other chemicals including lactic acid, used in food production and bioplastics, and isobutanol, a commodity chemical and an advanced biofuel.

In one case, turning on and off a blue light caused the special yeast to alternate between producing ethanol, a product of normal fermentation, and isobutanol, a chemical that normally would kill yeast at sufficiently high concentration.

With good compatibility with gasoline infrastructure, isobutanol has properties that could make it a direct substitute for gas as a vehicle fuel.

They managed to suppress the yeast's evolutionary self - interest by genetically engineering it to produce large quantities of isobutanol.

In between they turned the light off to shift their metabolism from powering growth to producing isobutanol.

Moreover, among all the engineered strains examined, the strain with the combined modification V461I / S286T showed the highest (2.4 times) improvement of isobutanol - to - 3M1B molar ratio, which was due to a decrease of the activity towards 3M1B production.

The advantage of isobutanol, he said, is that unlike some other biofuels, it does not freeze at 15,000 feet and continues burning very well in the subzero temperatures as high as 35,000 feet.

Flying on Plant Power: By 2020, he hopes that fuel for his companies» jet fleets will be derived from algae or consist of isobutanol, derived from sugars.

Already, the researchers have demonstrated how the system can be used to create compounds such as isobutanol, isopentanol and PHB, a bio-plastic precursor.