Processing biomass

Patent metadata

Field	Value
Publication number	US-9587258-B2
Application number	US-201615183564-A
Country	US
Kind code	B2
Filing date	Jun 15, 2016
Priority date	Apr 30, 2008
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

Biomass (e.g., plant biomass, animal biomass, microbial, and municipal waste biomass) is processed to produce useful products, such as food products and amino acids.

First claim

The invention claimed is:

1. A method comprising:
(a) irradiating a lignocellulosic or cellulosic biomass material with an ionizing radiation dose of 10 Mrad to 150 Mrad, wherein the irradiation reduces the recalcitrance of the biomass material;
(b) saccharifying the recalcitrant reduced biomass material, thereby producing a saccharified biomass comprising one or more sugar;
(c) converting the saccharified biomass material comprising said one or more sugar into a plastic, wherein the plastic is a polyhydroxyalkanoate (PHA) produced by culturing said saccharified biomass or one or more sugar thereof with Alcaligenes eutropohus bacteria; and
(d) obtaining said plastic.

2. The method of claim 1 , wherein the one or more sugar comprises a monosaccharide.

3. The method of claim 2 , wherein the one or more sugar comprises glucose and/or xylose.

4. The method of claim 1 , wherein the one or more sugar comprises a disaccharide.

5. The method of claim 1 , wherein the one or more sugar comprises a trisaccharide.

6. The method of claim 1 , wherein the method generates at least one of poly-β-hydroxybutyrate and poly-β-hydroxyvalerate.

Assignees

• Xyleco Inc

Inventors

• Medoff Marshall

Classifications

• Y02A40/818

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• A61K8/9717

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• A61K8/9794

  Liliopsida [monocotyledons] · CPC title

• A61K8/9789

  Magnoliopsida [dicotyledons] · CPC title

• A61K8/9728

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