Cargill Inc.

John Andrew Bohlmann

James R Trinkle

Ki-Oh Hwang

James Donald Steinke

Joseph P Henning

Weiyu Fan

Lawrence Edward Fosdick

Brenda L Ray

Tzyy-Jan Han

Shuang Zhou

Andrea Vanderhoff

Todd Anderson

Brian J Brazeau

Larry Todd Banner

Jess Vasina

Bryson Bergerud

Shannon Nicole Shriver

Paul Loucks

Charles David Ray

Don Grunig

Michael Brandon Bassett

David O Schisler

Systems and methods for producing levulinic acid from fungal biomass are disclosed. In one implementation, a method for distilling levulinic acid from a glucosamine-containing feedstock is disclosed that yields a relatively pure (e.g., 90% or greater) levulinic acid product from an otherwise problematic waste stream.

Levulinic acid from fungal biomass

Glucosamine, N-acetylglucosamine and &#x3b2;-glucan compositions suitable for human or animal consumption or use are disclosed. The glucosamine, N-acetylglucosamine and &#x3b2;-glucan compositions are derived from fungal biomass containing chitin. Various methods of producing glucosamine, N-acetylglucosamine and &#x3b2;-glucan compositions are also disclosed.

Glucosamine and N-acetylglucosamine compositions and methods of making the same fungal biomass

Glucosamine suitable for human or animal consumption is disclosed. The glucosamine is derived from fungal biomass containing chitin. Various methods of producing glucosamine by acid hydrolysis of fermented fungal biomass are also disclosed.

Glucosamine and method of making glucosamine from microbial biomass

A highly deacetylated chitosan obtained from microbial biomass, a method of obtaining chitosan from microbial biomass, and biomass for making chitosan are disclosed. The method includes providing chitin-containing biomass; reacting the chitin-containing biomass in a caustic solution of greater than 25 percent alkali at a reaction temperature greater than 95&#xb0; C. for a reaction period of at least 10 hours to convert the chitin in the biomass to chitosan; and separating the chitosan from the caustic solution.

Chitosan and method of preparing chitosan

Glucosamine suitable for human or animal consumption is disclosed. The glucosamine is derived from microbial biomass containing chitin. Suitable starting materials include substantially uniform microbial fungal sources, such as fungal sources derived fromsp.,sp.,sp. and combinations thereof. Methods of producing glucosamine by acid hydrolysis of fermented fungal biomass are also disclosed.

The invention relates to integrating at least two processes that use at least one acid, wherein one process utilizes an ion-exchange purification step.

Integration of at least two processes to re-use acid

The present invention is directed to N-acetyl-D-glucosamine obtained from microbial biomass, and to methods of obtaining N-acetyl-D-glucosamine from microbial biomass. In particular, the present invention is directed to the use of fungal biomass to create N-acetyl-D-glucosamine. The N-acetyl-D-glucosamine is efficiently obtained at high purity by degrading chitin in the fungal biomass to create N-acetyl-D-glucosamine.

N-acetyl-D-glucosamine and process for producing N-acetyl-D-glucosamine

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Ottumwa, IA, United States of America

John Andrew Bohlmann