Page Banner

United States Department of Agriculture

Agricultural Research Service

You are here: ARS Home / Collaborating / Office of Technology Transfer / BioEnergy

Related Topics

BioEnergy
headline bar

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 technologies that are available for licensing. 

Docket

Title

Description

Contact

183.11      
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 differring 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

243.12

PEPTIDOGLYCAN HYDROLASE ANTIMICROBIALS FOR ERADICATING LACTOBACILLI THAT CONTAMINATE AND REDUCE ETHANOL YIELDS IN BIOFUEL FERMENTATIONS

Suppressing microbial contamination is a major challenge in ethanol fermentation processing.  This invention describes a non-antibiotic source of antimicrobials for preventing or eradicating lactobacilli contaminants in the ethanol fermentation processing.  The invention involves purified recombinant proteins from expressed endolysin genes that when exposed to the target bacteria demonstrate lytic activity.

james.poulos@ars.usda.gov

119.07

INHIBITOR TOLERANT SACCHAROMYCES CEREVISIAE STRAIN

Furfural and 5-hydroxymethylfurfural (MHF) are representative inhibitors to ethanologenic yeast generated from biomass pretreatment using dilute acid hydrolysis.  Few yeast strains tolerant to inhibitors are available. 

renee.wagner@ars.usda.gov

88.11

A NEW TOLERANT YEAST PRODUCING BETA-GLUCOSIDASE FOR LOW-COST CELLULOSIC ETHANOL PRODUCTION USING SSF

The USDA developed a new yeast that naturally produces beta-glucosidase and ethanol so no beta-glucosidase needs to be added to complete a one-step simultaneous saccharification and fermentation (SSF) for cellulosic ethanol production.

renee.wagner@ars.usda.gov

55.11

 ETHERS AS RENEWABLE OILS, GREASES, AND LIQUID FUELS

The invention is a method for converting renewable, agriculture-based sugars and polyols (alcohols) into their corresponding methyl and/or ethyl ethers.

renee.wagner@ars.usda.gov

265.12

METHODS FOR PRODUCING BIO-OIL

The invention involves methods for producing bio-oil from a feedstock (e.g., lignocellulosic) involving (1) pyrolyzing the feedstock in an inert atmosphere in a reactor to produce bio-oil, bio-char and non-condensable gases; (2) recycling about 10 to about 99% of the non-condensable gases to the reactor to produce deoxygenated bio-oil; wherein the method is conducted in the absence of oxygen and wherein the method does not utilize externally added catalysts.

james.poulos@ars.usda.gov

127.11

METHODS FOR TREATING LIGNOCELLULOSIC BIOMASS

This invention is a new process to pre-treat lignocellulose so that it becomes a more desireable feedstock for making cellulosic ethanol.

james.poulos@ars.usda.gov

121.04

SPRIAL-WOUND LIQUID MEMBRANE MODULE FOR SEPARATION OF FLUIDS AND GASES

The present invention is a filtering and chemical separation device that performs the operations of solvent extraction and pervaporation in a single piece of equipment, configured as a spiral-wound membrane module, and provides for the replenishment of the solvent in the supported liquid membrane while the module continues in operation.  It provides a solution to the problem of separating miscible compounds efficiently and with low energy requirements.

david.nicholson@ars.usda.gov

 


Last Modified: 12/24/2014
Footer Content Back to Top of Page