Sentences with phrase «of xylose»

However, the researchers took a set of regulatory genes, called a GAL regulon that normally processes galactose and replaced some of the genes with those that become activated by and direct the breakdown of xylose.

The figure below shows the performance of a xylose utilizing yeast biocatalyst for fermenting a xylose under two conditions: 1) a condition where xylose is the primary sugar present (in this case hemicellulose isolated from pretreated hardwood, and 2) a condition where xylose and glucose are present at approximately equal levels (in this case a hydrolysate generated from a pretreated agricultural waste).

These strains of yeast have the ability to grow anaerobically on xylose at rates equivalent to those on glucose, to consume > 95 percent of the xylose present, even under toxic conditions, and to ferment this xylose to ethanol at high yield.

Yeast strains that had constitutive (mostly unregulated) control of xylose metabolism triggered pathways related to cell stress, starvation and DNA damage.

As part of the study, Nair and his team took a closer look at what exactly accounted for the improved survival of the xylose - eating yeast organism.

It is an amalgamation of xylose, glucose, and small amounts of three other sugars, and so far NREL has been unable to engineer a bacterium that can digest all of these at once.

Not exact matches

«Our study applied this approach to xylose, but it suggests a broader principle — adapting native regulons for the efficient assimilation of other non-native sugars and nutrients,» said Nair.

Researchers at Tufts University have created a genetically modified yeast that can more efficiently consume a novel nutrient, xylose, enabling the yeast to grow faster and to higher cell densities, raising the prospect of a significantly faster path toward the design of new synthetic organisms for industrial applications, according to a study published today in Nature Communications.

Taking a different approach, the researchers took a set of regulatory genes, called a GAL regulon, that normally processes galactose — a favorite on the yeast menu of nutrients — and replaced some of the genes with those that become activated by, and direct the breakdown of, xylose.

One of the biggest challenges in breaking down biomass into useful chemicals suitable for making biofuels is finding ways to selectively depolymerise lignocellulosic biomass into its monomers: glucose, xylose and lignin.

MEDFORD / SOMERVILLE, Mass. (March 26, 2018)-- Researchers at Tufts University have created a genetically modified yeast that can more efficiently consume a novel nutrient, xylose, enabling the yeast to grow faster and to higher cell densities, raising the prospect of a significantly faster path toward the design of new synthetic organisms for industrial applications, according to a study published today in Nature Communications.

Xylose is a sugar derived from the otherwise indigestible parts of plant material.

Rational and Evolutionary Engineering Approaches Uncover a Small Set of Genetic Changes Efficient for Rapid Xylose Fermentation in Saccaromyces cerevisae, Soo Rin Kim, Jeffrey M. Skerker, Wei Kang, Anastashia Lesmana, Na Wei, Adam P. Arkin, Yong - Su Jin, PLoS One, 8 (2): e57048.

Combinatorial Design of a Highly Efficient Xylose Utilizing Pathway for Cellulosic Biofuels Production in Saccharomyces cerevisiae, Byoungjin Kim, Jing Du, Dawn Eriksen, Huimin Zhao, Applied and Environmental Microbiology, doi: 10.1128 / AEM.02736 - 12, November 2012.

«Our study applied this approach to xylose, but it suggests a broader principle - adapting native regulons for the efficient assimilation of other non-native sugars and nutrients,» Nair said.

«Yes, this is a great source of immunity - supporting, digestive - friendly polysaccharides including the essential antiviral, antifungal, memory - improving sugars xylose, fructose and galactose,» espouses Wolfe.

The ingredients of Candidol include mannose, galactose, fucose, glucose, xylose, n - acetylneuramic acid, n - acetylgalactosamine, and n - acetylglucosamine.

The results of this process leave us with xylose and acetic acid.

Is an enzyme that breaks down a specific component of a fiber called hemicellulose into a simple sugar called xylose.

RESULTS: The iso - and hyperosmolar tests showed significant malabsorption of 3 -0-methyl-D-glucose, D - xylose, and L - rhamnose.

Step 3: Xylose isomerase (another enzyme) converts glucose to a mixture of about 42 % fructose and 50 — 52 % glucose with some other sugars mixed in.

These polymers can be linear or branched and consist of glucose, arabinose, mannose, xylose, and galact - uronic acid.

Before the test, the administrator of the test gives the person tested an oral measured dose of lactulose, glucose, xylose, or sucrose to provoke the bacteria.

Stephen Hughes, Ph.D., research molecular biologist at the USDA - ARS, described an automated process for high - throughput transformation (with bacterial xylose isomerase and xylose kinase genes), mutagenesis, and screening of yeast to select for fast - growing strains optimized for anaerobic growth on xylose.