USE OF POLY ALPHA-1,3-GLUCAN ETHERS AS VISCOSITY MODIFIERS

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound. 2. The hydrocolloid or aqueous solution of claim 1 , wherein at least one organic group is selected from the group consisting of alkyl group claim 1 , hydroxy alkyl group claim 1 , and carboxy alkyl group.3. The hydrocolloid or aqueous solution of claim 2 , wherein at least one organic group is selected from the group consisting of carboxymethyl claim 2 , methyl claim 2 , ethyl claim 2 , hydroxypropyl claim 2 , dihydroxypropyl claim 2 , and hydroxyethyl group.4. The hydrocolloid or aqueous solution of claim 2 , wherein the compound contains one type of organic group.5. The hydrocolloid or aqueous solution of claim 2 , wherein the compound contains two or more types of organic group.6. The hydrocolloid or aqueous solution of claim 1 , wherein the degree of substitution is about 0.2 to about 2.0.7. The hydrocolloid or aqueous solution of claim 1 , wherein the poly alpha-1 claim 1 ,3-glucan ether compound is crosslinked.8. The hydrocolloid or aqueous solution of claim 1 , wherein the pH of the hydrocolloid or aqueous solution is between about 2.0 to about 12.0.9. The hydrocolloid or aqueous solution of claim claim 1 , wherein the hydrocolloid or aqueous solution has shear thinning behavior or shear thickening behavior.10. The hydrocolloid or aqueous solution of claim 1 , wherein the hydrocolloid or aqueous solution is in the form of a personal care product claim 1 , pharmaceutical product claim 1 , food product claim 1 , household product claim 1 , or industrial product.12. The method of claim 11 , wherein said contacting is performed by mixing or dissolving ...

METHODS FOR FURFURAL PRODUCTION FROM BRANCHED NON-FERMENTABLE SUGARS IN STILLAGE OR SYRUP

Furfural is obtained selectively and in good purity from non-fermentable branched sugars found in soluble waste streams of lignocellulosic biomass. In a monophasic method, stillage or syrup is contacted with water and an acid catalyst under suitable reaction conditions to convert the branched non-fermentable branched sugars to furfural. Additionally, the stillage or syrup can be treated with a water-immiscible organic solvent to form a biphasic mixture comprising an aqueous phase and an organic phase. The furfural that is produced preferentially partitions into the organic phase, from which it may be recovered. 1. A method for producing furfural comprising the steps of:a) providing stillage or syrup comprising non-fermentable branched sugars;b) contacting the stillage or syrup with water to form a mixture;c) acidifying the mixture of formed in step (b) to pH 1 or less with an acid catalyst;d) heating the mixture formed in step (c) at a temperature and for a time sufficient to convert the non-fermentable branched sugars to furfural;e) optionally, recovering the furfural thereby produced.2. The method of claim 1 , wherein step (b) is performed prior to step (c).3. The method of claim 1 , wherein steps (b) and (c) are performed concurrently.4. The method of claim 1 , further comprising contacting the mixture formed in step c) with at least one water-immiscible organic solvent comprising at least one aliphatic hydrocarbon claim 1 , cycloalkane claim 1 , aromatic hydrocarbon claim 1 , polyether containing ester or ether end groups claim 1 , plant-derived oil claim 1 , or mixtures thereof under suitable reaction conditions to form a mixture comprising an aqueous phase and a furfural-containing organic phase.5. The method of wherein the product furfural is recovered by either distillation or selective extraction with a solvent.6. The method of claim 1 , wherein the acid catalyst comprises a mineral acid claim 1 , a heteropolyacid claim 1 , an organic acid claim 1 , or a ...

Production of ethanol and recycle water in a cellulosic fermentation process

Processes for producing ethanol from fermentation systems employing cellulosic feedstocks are provided, where water is processed for recycle. The water handling portion of the process employs multi-effect evaporators where the first effect evaporator is maintained at temperatures in excess of 105° C., and the evaporation train, beer column form a heat integrated system.

PREPARATION OF POLY ALPHA-1,3-GLUCAN ETHERS

Poly alpha-1,3-glucan ether compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ether compounds. 2. The composition of claim 1 , wherein said organic group is a hydroxy alkyl group claim 1 , alkyl group claim 1 , or carboxy alkyl group claim 1 , and wherein the compound contains one type of said organic group claim 1 , or two or more types of said organic group.3. The composition of claim 2 , wherein said organic group is a hydroxypropyl claim 2 , dihydroxypropyl claim 2 , hydroxyethyl claim 2 , methyl claim 2 , ethyl claim 2 , or carboxymethyl group.4. The composition of claim 2 , wherein the compound contains one type of said organic group.5. The composition of claim 2 , wherein the compound contains two or more types of said organic group.6. The composition of claim 1 , wherein the degree of substitution is about 0.2 to about 2.0.8. The method of claim 7 , wherein said alkaline conditions comprise an alkali hydroxide solution.9. The method of claim 7 , wherein the reaction comprises an organic solvent.10. The method of claim 9 , wherein the organic solvent is isopropanol.11. The method of claim 7 , wherein step (a) further comprises:(i) heating the reaction; and/or(ii) neutralizing the pH of the reaction.12. The method of claim 7 , wherein said organic group is a hydroxy alkyl group claim 7 , alkyl group claim 7 , or carboxy alkyl group claim 7 , and wherein the compound contains one type of said organic group claim 7 , or two or more types of said organic group.13. The method of claim 7 , wherein the poly alpha-1 claim 7 ,3-glucan is in a form of a slurry.14. The method of claim 13 , wherein the slurry comprises poly alpha-1 claim 13 ,3-glucan claim 13 , sucrose claim 13 , glucose claim 13 , fructose and a glucosyltransferase enzyme.15. The method of claim 7 , wherein the poly alpha-1 claim 7 ,3-glucan is in a form of a wet cake. This application claims the benefit ...

PREPARATION OF POLY ALPHA-1,3-GLUCAN ESTERS AND FILMS THEREFROM

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom. 1. A film comprising poly alpha-1 ,3-glucan ester having at least one of:(a) a tear resistance of at least about 0.1 gf/mil;{'sup': '2', '(b) a tensile strength of at least about 10 kg/mm; or'}(c) a haze of less than about 20%.2. The film of claim 1 , wherein the poly alpha-1 claim 1 ,3-glucan ester used is poly alpha-1 claim 1 ,3-glucan acetate.3. The film of claim 1 , wherein the film has at least one of:(a) a tear resistance from about 2.0 to about 2.4 gf/mil;{'sup': '2', '(b) a tensile strength of at least about 200 kg/mm; or'}(c) a haze of less than about 10%.4. The film of claim 3 , wherein the poly alpha-1 claim 3 ,3-glucan ester used is poly alpha-1 claim 3 ,3-glucan acetate.5. A method to prepare a poly alpha-1 claim 3 ,3-glucan ester film comprising:(a) providing poly alpha-1,3-glucan ester;(b) contacting the poly alpha-1,3-glucan ester of (a) with a solvent to make a solution of poly alpha-1,3-glucan ester;(c) applying the solution of poly alpha-1,3-glucan ester on a surface; and(d) allowing the solvent to evaporate to provide the poly alpha-1,3-glucan ester film.6. The method of claim 5 , wherein the poly alpha-1 claim 5 ,3-glucan ester used is poly alpha-1 claim 5 ,3-glucan acetate.7. The method of claim 5 , wherein the solvent is acetone. This application claims the benefit of U.S. Provisional Application Nos. 61/746,328; 61/746,335 and 61/746,338; each filed Dec. 27, 2012, all of which are incorporated herein by reference in their entirety.This invention is in the field of poly alpha-1,3-glucan derivatives. Specifically, this invention pertains to poly alpha-1,3-glucan esters, methods of their preparation and films made therefrom.Driven by a desire to find new structural polysaccharides using enzymatic syntheses or genetic engineering ...

PREPARATION OF POLY ALPHA-1,3-GLUCAN ESTERS AND FILMS MADE THEREFROM

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom. 2. The composition of claim 1 , wherein the acyl group is an acetyl claim 1 , propionyl claim 1 , butyryl claim 1 , pentanoyl claim 1 , hexanoyl claim 1 , heptanoyl claim 1 , or octanoyl group; and wherein the compound contains one type of said acyl group claim 1 , or two or more types of said acyl group.3. The composition of claim 2 , wherein the compound contains one type of said acyl group.4. The composition of claim 3 , wherein the acyl group is an acetyl group claim 3 , and wherein the degree of substitution is about 0.05 to about 2.6.5. The composition of claim 2 , wherein the compound contains two or more types of said acyl group.6. The composition of claim 5 , wherein the two or more types of said acyl group are:(i) acetyl and propionyl, or(ii) acetyl and butyryl.8. The method of claim 7 , wherein the poly alpha-1 claim 7 ,3-glucan is acid-exchanged with an organic acid before contacting step (a) to remove water from the poly alpha-1 claim 7 ,3-glucan.9. The method of claim 7 , wherein the acid catalyst is an inorganic acid.10. The method of claim 9 , wherein the inorganic acid is sulfuric acid or perchloric acid.11. The method of claim 7 , wherein:the acid anhydride is one or more of acetic anhydride, propionic anhydride, or butyric anhydride; andthe organic acid is one or more of acetic acid, propionic acid, or butyric acid.12. The method of claim 11 , wherein:(i) the acid anhydride is acetic anhydride, and the organic acid is acetic acid, wherein the poly alpha-1,3-glucan ester compound produced in the reaction is a poly alpha-1,3-glucan acetate;(ii) the acid anhydrides are propionic anhydride and acetic anhydride, and the organic acids are propionic acid and optionally acetic acid, wherein the poly alpha-1,3-glucan ester compound ...

USE OF POLY ALPHA-1,3-GLUCAN ETHERS AS VISCOSITY MODIFIERS

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound. 116-. (canceled)18. The coating of claim 17 , wherein at least one organic group is an alkyl.19. The coating of claim 18 , wherein the alkyl is a methyl claim 18 , ethyl claim 18 , propyl claim 18 , or butyl.20. The coating of claim 17 , wherein at least one organic group is a hydroxy alkyl.21. The coating of claim 20 , wherein the hydroxy alkyl is a hydroxypropyl claim 20 , dihydroxypropyl claim 20 , or hydroxyethyl.22. The coating of claim 17 , wherein at least one organic group is a carboxy alkyl.23. The coating of claim 22 , wherein the carboxy alkyl is a carboxymethyl.24. The coating of claim 17 , wherein at least one organic group comprises a chain of one or more carbons in which one or more hydrogens are substituted with another atom or functional group.25. The coating of claim 17 , wherein the degree of substitution is about 0.05 to about 3.0.26. The coating of claim 17 , wherein the degree of substitution is about 0.2 to about 2.0.27. The coating of claim 17 , wherein the degree of substitution is about 0.3.28. The coating of claim 23 , wherein the degree of substitution is about 0.05 to about 3.0.29. The coating of claim 23 , wherein the degree of substitution is about 0.2 to about 2.0.30. The coating of claim 23 , wherein the degree of substitution is about 0.3.31. The coating of claim 17 , wherein at least 90% of the glycosidic linkages of the poly alpha-1 claim 17 ,3-glucan ether compound are alpha-1 claim 17 ,3 glycosidic linkages.32. The coating of claim 17 , wherein the coating is a tablet coating.33. The coating of claim 17 , wherein the ...

PREPARATION OF POLY ALPHA-1,3-GLUCAN ESTERS AND FILMS THEREFROM

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom. 1. A film comprising poly alpha-1 ,3-glucan ester having at least one of:(a) a tear resistance of at least about 0.1 gf/mil; or(b) a haze of less than about 20%.2. The film of claim 1 , wherein the poly alpha-1 claim 1 ,3-glucan ester used is poly alpha-1 claim 1 ,3-glucan acetate.3. The film of claim 1 , wherein the film has at least one of:(a) a tear resistance from about 2.0 to about 2.4 gf/mil; or(b) a haze of less than about 10%.4. The film of claim 3 , wherein the poly alpha-1 claim 3 ,3-glucan ester used is poly alpha-1 claim 3 ,3-glucan acetate.5. A method to prepare a poly alpha-1 claim 3 ,3-glucan ester film comprising:(a) providing poly alpha-1,3-glucan ester;(b) contacting the poly alpha-1,3-glucan ester of (a) with a solvent to make a solution of poly alpha-1,3-glucan ester;(c) applying the solution of poly alpha-1,3-glucan ester on a surface; and(d) allowing the solvent to evaporate to provide the poly alpha-1,3-glucan ester film.6. The method of claim 5 , wherein the poly alpha-1 claim 5 ,3-glucan ester used is poly alpha-1 claim 5 ,3-glucan acetate.7. The method of claim 5 , wherein the solvent is acetone. This application is a Continuation-In-Part of U.S. patent application Ser. No. 14/136,168, filed Dec. 20, 2013 and claims the benefit of U.S. Provisional Application Nos. 61/746,328; 61/746,335 and 61/746,338; each filed Dec. 27, 2012, each now expired, all of which are incorporated herein by reference in their entirety.This invention is in the field of poly alpha-1,3-glucan derivatives. Specifically, this invention pertains to poly alpha-1,3-glucan esters, methods of their preparation and films made therefrom.Driven by a desire to find new structural polysaccharides using enzymatic syntheses or genetic engineering of ...

USE OF POLY ALPHA-1,3-GLUCAN ETHERS AS VISCOSITY MODIFIERS

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound. 116-. (canceled)18. The hydrocolloid or aqueous solution of claim 17 , wherein at least one organic group is an alkyl or hydroxy alkyl.19. The hydrocolloid or aqueous solution of claim 18 , wherein at least one organic group is a methyl claim 18 , ethyl claim 18 , propyl claim 18 , butyl claim 18 , hydroxypropyl claim 18 , dihydroxypropyl claim 18 , or hydroxyethyl.20. The hydrocolloid or aqueous solution of claim 19 , wherein the compound contains at least methyl and hydroxypropyl as organic groups.21. The hydrocolloid or aqueous solution of claim 19 , wherein the compound contains at least methyl and hydroxyethyl as organic groups.22. The hydrocolloid or aqueous solution of claim 19 , wherein the compound contains at least hydroxypropyl and hydroxyethyl as organic groups.23. The hydrocolloid or aqueous solution of claim 17 , wherein at least one organic group is a carboxy alkyl.24. The hydrocolloid or aqueous solution of claim 23 , wherein at least one organic group is a carboxymethyl.25. The hydrocolloid or aqueous solution of claim 17 , wherein at least one organic group comprises a chain of one or more carbons in which one or more hydrogens are substituted with another atom or functional group.26. The hydrocolloid or aqueous solution of claim 17 , wherein the degree of substitution is about 0.2 to about 2.0.27. The hydrocolloid or aqueous solution of claim 17 , wherein at least 90% of the glycosidic linkages of the poly alpha-1 claim 17 ,3-glucan ether compound are alpha-1 claim 17 ,3 glycosidic linkages.28. The hydrocolloid or aqueous solution of ...

Preparation of poly alpha-1,3-glucan esters and films therefrom

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom.

USE OF POLY ALPHA-1,3-GLUCAN ETHERS AS VISCOSITY MODIFIERS

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound. 2. The hydrocolloid or aqueous solution of claim 1 , wherein at least one organic group is selected from the group consisting of alkyl claim 1 , hydroxy alkyl claim 1 , and carboxy alkyl.3. The hydrocolloid or aqueous solution of claim 2 , wherein at least one organic group is selected from the group consisting of carboxymethyl claim 2 , methyl claim 2 , ethyl claim 2 , hydroxypropyl claim 2 , dihydroxypropyl claim 2 , and hydroxyethyl.4. The hydrocolloid or aqueous solution of claim 2 , wherein the compound contains one type of organic group.5. The hydrocolloid or aqueous solution of claim 2 , wherein the compound contains two or more types of organic group.6. The hydrocolloid or aqueous solution of claim 1 , wherein the degree of substitution is about 0.2 to about 2.0.7. The hydrocolloid or aqueous solution of claim 1 , wherein the poly alpha-1 claim 1 ,3-glucan ether compound is carboxymethyl poly alpha-1 claim 1 ,3-glucan.89-. (canceled)10. The hydrocolloid or aqueous solution of claim 1 , wherein the hydrocolloid or aqueous solution is comprised in a household product.1115-. (canceled)17. The method of claim 16 , wherein the fabric comprises a natural fiber claim 16 , synthetic fiber claim 16 , semi-synthetic fiber claim 16 , or any combination thereof.19. The fabric of claim 18 , wherein the fabric comprises a natural fiber claim 18 , synthetic fiber claim 18 , semi-synthetic fiber claim 18 , or any combination thereof.20. The hydrocolloid or aqueous solution of claim 1 , further comprising at least one surfactant.21. The hydrocolloid or aqueous ...

PREPARATION OF POLY ALPHA-1,3-GLUCAN ETHERS

Poly alpha-1,3-glucan ether compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ether compounds. 16-. (canceled)8. The method of claim 7 , wherein said alkaline conditions comprise an alkali hydroxide solution.9. The method of claim 7 , wherein the reaction comprises an organic solvent.10. The method of claim 9 , wherein the organic solvent is isopropanol.11. The method of claim 7 , wherein step (a) further comprises:(i) heating the reaction; and/or(ii) neutralizing the pH of the reaction.12. The method of claim 7 , wherein said organic group is a hydroxy alkyl group claim 7 , alkyl group claim 7 , or carboxy alkyl group claim 7 , and wherein the compound contains one type of said organic group claim 7 , or two or more types of said organic group.13. The method of claim 7 , wherein the poly alpha-1 claim 7 ,3-glucan is in a form of a slurry.14. The method of claim 13 , wherein the slurry comprises poly alpha-1 claim 13 ,3-glucan claim 13 , sucrose claim 13 , glucose claim 13 , fructose and a glucosyltransferase enzyme.15. The method of claim 7 , wherein the poly alpha-1 claim 7 ,3-glucan is in a form of a wet cake.16. The method of claim 13 , wherein the slurry comprises poly alpha-1 claim 13 ,3-glucan claim 13 , fructose and a glucosyltransferase enzyme.17. The method of claim 12 , wherein said organic group is a hydroxypropyl claim 12 , dihydroxypropyl claim 12 , hydroxyethyl claim 12 , methyl claim 12 , or ethyl group.18. The method of claim 12 , wherein said organic group is a carboxymethyl group.19. The method of claim 7 , wherein the compound contains one type of organic group.20. The method of claim 7 , wherein the compound contains two or more types of organic groups.21. The method of claim 7 , wherein the degree of substitution is about 0.2 to about 2.0.22. The method of claim 7 , wherein n is at least 800.23. The method of claim 22 , wherein n is at least ...

Production of high solids syrup from lignocellulosic biomass hydrolysate fermentation broth

Lignocellulosic biomass hydrolysate fermentation broth may be processed to produce a high solids syrup having relatively low viscosity that has a high energy content and may be burned in a fermentation production process. The high solids syrup was achieved through liquid/solid separation of broth or depleted broth producing a thin stillage with low suspended solids allowing evaporation to high solids while maintaining low viscosity.

Production of high solids syrup from lignocellulosic biomass hydrolysate fermentation broth

Lignocellulosic biomass hydrolysate fermentation broth may be processed to produce a high solids syrup having relatively low viscosity that has a high energy content and may be burned in a fermentation production process. The high solids syrup was achieved through liquid/solid separation of broth or depleted broth producing a thin stillage with low suspended solids allowing evaporation to high solids while maintaining low viscosity.

method for furfural production

método para a produção de furfural furfural é obtido seletivamente e em boa pureza a partir de açúcares ramificados não-fermentáveis encontrados em correntes de resíduos solúveis de biomassa lignocelulósica. em um método monofásico, vinhaça ou xarope é colocado em contato com água e um catalisador ácido sob condições de reação adequadas para converter os açúcares ramificados não-fermentáveis em furfural. adicionalmente, a vinhaça ou xarope pode ser tratado com um solvente orgânico imiscível em água para formar uma mistura bifásica compreendendo uma fase aquosa e uma fase orgânica. o furfural que é produzido, se divide preferivelmente na fase orgânica, a partir da qual ele pode ser recuperado. The furfural furfural production method is obtained selectively and in good purity from non-fermentable branched sugars found in soluble waste streams of lignocellulosic biomass. In a single-phase method, vinasse or syrup is brought into contact with water and an acid catalyst under suitable reaction conditions to convert the nonfermentable branched sugars to furfural. Additionally, the vinasse or syrup may be treated with a water immiscible organic solvent to form a biphasic mixture comprising an aqueous phase and an organic phase. the furfural that is produced preferably divides into the organic phase from which it can be recovered.

Methods for furfural production from branched non-fermentable sugars in stillage or syrup

Furfural is obtained selectively and in good purity from non-fermentable branched sugars found in soluble waste streams of lignocellulosic biomass. In a monophasic method, stillage or syrup is contacted with water and an acid catalyst under suitable reaction conditions to convert the branched non-fermentable branched sugars to furfural. Additionally, the stillage or syrup can be treated with a water-immiscible organic solvent to form a biphasic mixture comprising an aqueous phase and an organic phase. The furfural that is produced preferentially partitions into the organic phase, from which it may be recovered.

Production of high solids syrup from lignocellulosic biomass hydrolysate fermentation broth

Lignocellulosic biomass hydrolysate fermentation broth may be processed to produce a high solids syrup having relatively low viscosity that has a high energy content and may be burned in a fermentation production process. The high solids syrup was achieved through liquid/solid separation of broth or depleted broth producing a thin stillage with low suspended solids allowing evaporation to high solids while maintaining low viscosity.

Plasticizers comprising poly(trimethylene ether) glycol esters

Plasticizers comprising monoesters and/or diesters of poly(trimethylene ether) glycol are provided. The plasticizers can be used in plasticizing a variety of base polymers.

Preparation of poly alpha-1,3-glucan esters and films therefrom

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom.

Plasticizers comprising poly(trimethylene ether) glycol esters

Plasticizers comprising monoesters and/or diesters of poly(trimethylene ether) glycol are provided. The plasticizers can be used in plasticizing a variety of base polymers.

Films of poly alpha-1,3-glucan esters and method for their preparation

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom.

AQUEOUS OR HYDROCOLOID SOLUTION, METHOD FOR INCREASE THE VISCOSITY OF A COMPOSITION AND METHOD FOR TREATMENT OF A MATERIAL

SOLUÇÃO AQUOSA OU HIDROCOLOIDE, MÉTODO PARA AUMENTAR A VISCOSIDADE DE UMA COMPOSIÇÃO E MÉTODO PARA O TRATAMENTO DE UM MATERIAL. A presente invenção se refere a uma solução aquosa ou hidrocoloide que compreende um composto do éter de poli alfa-1,3-glucano que possui uma viscosidade de, pelo menos, cerca de 10 centipoise (cPs). O composto do éter de poli alfa-1,3-glucano nestas composições possui um grau de substituição de cerca de 0,05 a cerca de 3,0. A presente invenção também se refere a um método para aumentar a viscosidade de uma composição aquosa ou hidrocoloide utilizando um composto do éter de poli alfa-1,3-glucano. AQUEOUS OR HYDROCOLOID SOLUTION, METHOD FOR INCREASE THE VISCOSITY OF A COMPOSITION AND METHOD FOR THE TREATMENT OF A MATERIAL. The present invention relates to an aqueous or hydrocolloid solution comprising a poly alpha-1,3-glucan ether compound having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution from about 0.05 to about 3.0. The present invention also relates to a method of increasing the viscosity of an aqueous or hydrocolloid composition using a poly alpha-1,3-glucan ether compound.

Production of ethanol and recycle water in a cellulosic fermentation process

Processes for producing ethanol from fermentation systems employing cellulosic feedstocks are provided, where water is processed for recycle. The water handling portion of the process employs multi-effect evaporators where the first effect evaporator is maintained at temperatures in excess of 105 °C, and the evaporation train, beer column form a heat integrated system.

Use of poly alpha-1,3-glucan ethers as viscosity modifiers

Use of poly alpha-1,3-glucan ethers as viscosity modifiers

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound.

Use of poly alpha-1,3-glucan ethers as viscosity modifiers

A hydrocolloid or aqueous solution comprising a poly alpha-1,3-glucan ether compound is disclosed having a viscosity of at least about 10 centipoise (cPs). The poly alpha-1,3-glucan ether compound in these compositions has a degree of substitution of about 0.05 to about 3.0. Also disclosed is a method for increasing the viscosity of a hydrocolloid or aqueous composition using a poly alpha-1,3-glucan ether compound.

Preparation of poly alpha-1,3-glucan esters and films therefrom

Poly alpha-1,3-glucan ester compounds are disclosed herein with a degree of substitution of about 0.05 to about 3.0. Also disclosed are methods of producing poly alpha-1,3-glucan ester compounds and films made therefrom.