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United States Department of Agriculture

Agricultural Research Service

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Each year, approximately 60 new patents are issued by the U.S. Patent Office for USDA inventions. The Office of Technology Transfer (OTT) transfers these inventions through licenses to the private sector for commercialization. Below are links to the new technologies that are available for licensing.

Docket

Title

Description

Contact

166.13   NEW

METHODS AND YEAST STRAINS FOR CONVERSION OF LIGNOCELLULOSIC BIOMASS TO LIPIDS AND CAROTENOIDS

 

The use of oleaginous yeast strains for producing lipids from pretreated lignocellulosic biomass. Additionally, some yeast simultaneously produces carotenoids, a value added co-product.

Potential Commercial Applications
- Production of biodiesel and jet fuels from renewable biomass

Competitive Advantages
- Lignocellulosic biomass is an attractive source of sugars for yeast lipid production because it is abundant, potentially low cost, and renewable
- The lipid produced have fatty acid profiles similar to those of vegetable oils, making them attractive for production of biodiesels

renee.wagner@ars.usda.gov

183.11  + 54.16    
NEW

NOVEL YEAST STRAINS                         

Using directed evolution, several strains of Scheffersomyces stipitis are generated that better utilize xylose and glucose for improved ethanol production. These improved strains are obtained by culturing the yeast on hydrolyzates of differing concentrations of xylose, ethanol, and by-products.

                                                                                                                                   Potential Commercial Applications
- These strains could be used to ferment both hexose and pentose sugars to produce ethanol from the lignocellulosic corn hull fiber generated in corn to ethanol plants or from corn stover
- The strains can also be used to produce ethanol from base- or acid-pretreated switchgrass and other forms of herbaceous lignocellulosic biomass
- Stains can also be used to produce ethanol from base or acid-pretreated woody biomass residues


Competitive Advantages
- This is a native xylose-fermenting yeast that has not been genetically modified
- Yeast strains are evolved and selected to be tolerant of diverse nutrient environments and inhibitory hydrolyzates of lignocellulosic biomass
- Strains ferment both glucose and xylose in enzyme hydrolyzates produced from 20% solids loading acid or base pretreatments

renee.wagner@ars.usda.gov

126.14  

METHODS OF PRODUCING CALCINED COKE FROM BIO-OIL AND CALCINED COKE PRODUCED THEREBY

 

A process for synthesizing biologically-derived coke from a byproduct of bio-oil distillation. The process entails fast pyrolysis, atmospheric distillation and vacuum distillation to remove liquid and volatile products.

Potential Commercial Applications:

- The carbon rich product can be uses as a solid fuel (coal) substitute
- Can be calcined into coke suitable for use in aluminum smelting anodes, steel carburization and titanium dioxide production

Competitive Advantages:
- Bio renewable
- Sulfur is eliminated to trace levels below 500 ppm (vs. > 2 - 3%)
- Vanadium and nickel are absent completely in most cases (vs. > 300 ppm)
- Total ash/metal content is comparable and/or less than petroleum coke
- A desulfurization step is not needed

 

 

renee.wagner@ars.usda.gov

 

283.12   

SYNTHETIC PROMOTER FOR XYLOSE-REGULATED GENE EXPRESSION IN SACCHAROMYCES YEASTS

 

Synthetic promoters for use in Saccharomyces yeast to control gene expression in response to the presence of xylose. Upon xylose availability, the prokaryotic DNA binding protein is released from the synthetic promoter, allowing gene expression.

Potential Commercial Applications
- Lignocellulose-based processing where it is desirable to use a S. cerevisiae strain for ethanol, advanced biofuels or renewable chemicals production

Competitive Advantages
- These synthetic promoters will allow tunable control of gene expression for engineering Saccharomyces yeasts for efficient xylose fermentation

renee.wagner@ars.usda.gov

 

 


Last Modified: 8/12/2016
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