Tag: yeast

Great Lakes Bioenergy Research Center find four-gene cluster in yeast that produce pulcherrimin

Great Lakes Bioenergy Research Center find four-gene cluster in yeast that produce pulcherrimin

January 14, 2019 |

In Michigan, yeasts are complex organisms that may become the workhorses of biofuel production. To move yeasts into this larger role, scientists need to understand the genetic machinery that leads to the production of complex molecules like the iron-binding molecule pulcherrimin in budding yeasts. Great Lakes Bioenergy Research Center scientists revealed a four-gene cluster associated […]

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University of Groningen researchers discover why some yeast produces ethanol

University of Groningen researchers discover why some yeast produces ethanol

January 7, 2019 |

In the Netherlands, University of Groningen scientists think they have figured out why some yeast cells produce ethanol: yeast cells produce ethanol as a ‘safety valve’ to prevent overload when their metabolic operation reaches a critical level. The new theory, which was published in Nature Metabolism on 7 January, could have far-reaching implications, as it […]

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Red-hued yeasts hold clues to producing better biofuels

Red-hued yeasts hold clues to producing better biofuels

October 13, 2018 |

In Wisconsin, a team based at the University of Wisconsin–Madison and the Great Lakes Bioenergy Research Center found clues in red-hued yeasts that could help harness the synthesis pathway for large-scale production of isobutanol as a biofuel. A red pigment called pulcherrimin, naturally produced by several strains of wild yeasts, is synthesized in part through […]

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Yeast can be protected from damage in biofuel production

Yeast can be protected from damage in biofuel production

August 11, 2018 |

In Wisconsin, researchers from the University of Wisconsin–Madison and several Department of Energy laboratories identified two changes to a single gene that can make yeast tolerate pretreatment chemicals during biofuel production. The toxicity involved in pretreatment chemicals is enough to make the yeast as much as 70 percent less efficient at turning sugar into biofuel, […]

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Tufts researchers genetically modify yeast to consume xylose

Tufts researchers genetically modify yeast to consume xylose

April 4, 2018 |

In Texas, 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 […]

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Researchers use light to boost biofuel production from yeast

Researchers use light to boost biofuel production from yeast

April 2, 2018 |

In New Jersey, researchers at the Andlinger Center for Energy and the Environment use light to enhance the production of biofuels, drugs and commercial chemicals in bioreactors, which contain microorganisms such as yeast that have been metabolically engineered to make biological products. The team uses a technology called optogenetics—involving light to control cellular processes—to turn […]

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How EtOH production affects yeast health: 4 tips for dealing with ethanol stress

How EtOH production affects yeast health: 4 tips for dealing with ethanol stress

December 18, 2017 |

By Dale Earls, Scientist, Novozymes Special to The Digest It turns out that too much of a good thing can actually be a bad thing—even when it comes to ethanol. At least in terms of the fermentation process. In commercial yeasts available today, as fermentation progresses and the concentration of ethanol rises, yeast cells are […]

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Keeping yeast fit and healthy: combating organic acids in fermentation

Keeping yeast fit and healthy: combating organic acids in fermentation

October 23, 2017 |

By Amanda Moser, Senior Scientist, Novozymes Special to The Digest It’s harvest time, and that means organic acids—a common stressor for yeast—are a top-of-mind concern for ethanol producers. But while some yeasts are more resilient than others, most still require constant attention; after all, each stressor can potentially reduce performance, and those reductions can quickly […]

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German researchers boost metabolism of baker’s yeast to improve yields

German researchers boost metabolism of baker’s yeast to improve yields

September 18, 2017 |

In Germany, currently, making products such as fuels, synthetic materials or pharmaceuticals from renewable raw materials lacks efficiency because the microorganisms process the raw materials very slowly and generate many unwanted by-products. Biotechnologists at Goethe University Frankfurt have now succeeded in optimizing sugar utilization in baker’s yeast. Researchers from the Institute of Molecular Biosciences at […]

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Xylogenics advances GX-1 Yeast Technology  

Xylogenics advances GX-1 Yeast Technology  

June 28, 2017 |

In Indiana, Xylogenics released a new strain design for its patented GX-1 yeast production and fermentation process. The efficiencies created by the newest strain design will have an immediate impact on industries that rely on micro-organism technologies, most notably the ethanol industry wherein individual production plants are planning to invest upwards of $350 million annually […]

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