US20120058526A1 - Methods and Systems for Processing Sugar Mixtures and Resultant Compositions - Google Patents

Methods and Systems for Processing Sugar Mixtures and Resultant Compositions Download PDF

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US20120058526A1
US20120058526A1 US13/225,346 US201113225346A US2012058526A1 US 20120058526 A1 US20120058526 A1 US 20120058526A1 US 201113225346 A US201113225346 A US 201113225346A US 2012058526 A1 US2012058526 A1 US 2012058526A1
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sugar
optionally
product
mixture
exemplary embodiments
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Robert Jansen
Aharon Eyal
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Virdia LLC
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HCL Cleantech Ltd
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Priority claimed from PCT/IL2011/000424 external-priority patent/WO2011151823A1/fr
Priority claimed from PCT/IL2011/000509 external-priority patent/WO2011161685A2/fr
Priority claimed from PCT/IL2011/000517 external-priority patent/WO2012001688A2/fr
Priority claimed from PCT/US2011/046153 external-priority patent/WO2012018740A1/fr
Priority to US13/225,346 priority Critical patent/US20120058526A1/en
Application filed by HCL Cleantech Ltd filed Critical HCL Cleantech Ltd
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Publication of US20120058526A1 publication Critical patent/US20120058526A1/en
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Assigned to VIRDIA LTD reassignment VIRDIA LTD CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HCL TECH LTD
Priority to US14/033,205 priority patent/US10240217B2/en
Assigned to VIRDIA, INC. reassignment VIRDIA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VIRDIA LTD
Assigned to TRIPLEPOINT CAPITAL LLC reassignment TRIPLEPOINT CAPITAL LLC SECURITY AGREEMENT Assignors: VIRDIA, INC.
Priority to US15/093,698 priority patent/US9663836B2/en
Priority to US17/100,672 priority patent/US20210310088A1/en
Assigned to VIRDIA, INC. reassignment VIRDIA, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: TRIPLEPOINT CAPITAL LLC
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    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K13/00—Sugars not otherwise provided for in this class
    • C13K13/002—Xylose
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/163—Sugars; Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/10—Feeding-stuffs specially adapted for particular animals for ruminants
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H1/00—Processes for the preparation of sugar derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00—Preparation of oxygen-containing organic compounds
    • C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
    • C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
    • C12P7/06—Ethanol, i.e. non-beverage
    • C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
    • C12P7/10—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate substrate containing cellulosic material
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00—Preparation of oxygen-containing organic compounds
    • C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
    • C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
    • C12P7/06—Ethanol, i.e. non-beverage
    • C12P7/14—Multiple stages of fermentation; Multiple types of microorganisms or re-use of microorganisms
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00—Glucose; Glucose-containing syrups
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00—Glucose; Glucose-containing syrups
    • C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K13/00—Sugars not otherwise provided for in this class
    • C13K13/007—Separation of sugars provided for in subclass C13K
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]

Definitions

  • This invention relates to processing of sugars.
  • sucrose indicates a monosaccharide or an oligosaccharide containing at least two monosaccharide sub-units and having a solubility greater than 5% in water at 25 degrees centigrade.
  • one or more of the sugars in the mixture is provided as a “precursor”.
  • One aspect of some embodiments of the invention relates to selectively removing at least two monomeric sugars from a sugar mixture containing oligomeric sugars and processing at least a portion of the oligomeric sugars to produce additional monomeric sugars.
  • at least one of the two monomeric sugars is converted to a product and the product is removed from the mixture.
  • at least one of the two monomeric sugars is crystallized and the crystals are removed from the mixture.
  • processing of the oligomeric sugars includes hydrolysis. Optionally, this hydrolysis is in a dilute acid solution.
  • One aspect of some embodiments of the invention relates to fermentation of glucose in a sugar mixture to produce ethanol and use of at least a portion of the produced ethanol in crystallization of a non-glucose sugar from the mixture.
  • the non-glucose sugar can be monomeric or oligomeric (disaccharide; trisacchararide or longer oligomer).
  • two or more rounds of crystallization are conducted to separate a series of different sugars from the mixture.
  • the method includes separating at least one of the at least one second sugar from the product mixture.
  • the at least one second sugar includes a pentose.
  • the at least one second sugar precursor includes a disaccharide.
  • the method includes reacting the second sugar to form a second sugar product.
  • the second sugar is xylose and the second sugar product is selected from xylitol and a rumen bypass protein.
  • the weight ratio between the second sugar to the first sugar prior to the selectively reacting is R1;
  • the ratio of R2 to R1 is greater than 5.
  • the weight ratio between the second sugar precursor to the first sugar prior to the selectively reacting is R1;
  • the total weight of the second sugar includes at least 50% of the total sugars in the product mixture.
  • the total weight of the second sugar precursor is equal to at least 50% of the total sugars in the product mixture.
  • the product of the first sugar is selected from the group consisting of ethanol, higher alcohols, organic acids and organic acid ester of 3 to 22 carbon atoms, amino acids, yeast and proteins.
  • the separating includes at least one of distillation, membrane filtration, solvent extraction and chromatographic separation.
  • the product of the first sugar has an atmospheric-pressure boiling point of less than 100° C.
  • the product of the first sugar forms an azeotrope with water.
  • a method including: (a) providing a mixture including a first sugar and at least one second sugar precursor; (b) selectively reacting the first sugar to form a product mixture including a product of the first sugar; (c) selectively reacting the precursor to form the second sugar; and (d) separating the product of the first sugar.
  • the method includes separating at least one of the at least one second sugar precursor from the product mixture.
  • selectively reacting the precursor to form the second sugar occurs after separating the product of the first sugar.
  • separating the product of the first sugar from the second sugar includes separating each of the product of the first sugar and the second sugar from the product mixture.
  • separating the product of the first sugar is followed by separating the second sugar precursor.
  • the preparing includes:
  • the method includes de-acidifying the hydrolyzate.
  • the hydrolyzing is performed in a counter-current mode.
  • an amount of at least one of the at least one second sugars in the mixture, optionally present as a precursor, is at least 85% of a theoretical yield of the same second sugar in the lignocellulosic material feed.
  • a method including: (a) providing a fermentor; and (b) fermenting a medium including a second sugar according as described above in the fermentor to produce a conversion product.
  • a method including: (a) providing an input stream including at least one member of the group consisting of:
  • the method includes processing the conversion product to produce a consumer product selected from the group consisting of detergent, polyethylene-based products, polypropylene-based products, polyolefin-based products, polylactic acid (polylactide)-based products, polyhydroxyalkanoate-based products and polyacrylic-based products.
  • a consumer product selected from the group consisting of detergent, polyethylene-based products, polypropylene-based products, polyolefin-based products, polylactic acid (polylactide)-based products, polyhydroxyalkanoate-based products and polyacrylic-based products.
  • the detergent includes a sugar-based surfactant, a fatty acid-based surfactant, a fatty alcohol-based surfactant, or a cell-culture derived enzyme.
  • the polyolefin-based products are selected from milk jugs, detergent bottles, margarine tubs, garbage containers, water pipes, absorbent articles, diapers, non-wovens, high density polyethylene (HDPE) toys and HDPE detergent packagings.
  • HDPE high density polyethylene
  • the polyhydroxyalkanoate based products are selected from packaging of agriculture products, plastic bottles, coated papers, molded or extruded articles, feminine hygiene products, tampon applicators, absorbent articles, disposable nonwovens and wipes, medical surgical garments, adhesives, elastomers, films, coatings, aqueous dispersants, fibers, intermediates of pharmaceuticals and binders.
  • the gasahol is ethanol-enriched gasoline or butanol-enriched gasoline.
  • the product is selected from the group consisting of diesel fuel, gasoline, jet fuel and drop-in fuels.
  • the conversion product includes rumen bypass protein.
  • a method including: (a) selectively reacting a first sugar in an initial mixture which includes at least one oligosaccharide to form a product mixture including a product of the first sugar; (b) producing an oligosaccharide rich sugar fraction with a ratio of at least one of the at least one oligosaccharide to a total sugar concentration greater than a same ratio in the product mixture; and (c) hydrolyzing the oligosaccharide rich sugar fraction to produce monomeric sugars.
  • the method includes separating at least one monomeric sugar from the product mixture.
  • the selectively reacting produces an alcohol.
  • the producing an oligomer rich sugar fraction includes crystallization of at least one of the at least one oligosaccharide from the product mixture.
  • the selectively reacting the first sugar produces an alcohol.
  • the method includes use of the alcohol to aid in the crystallization.
  • a method including: (a) fermenting glucose in a portion of an initial mixture which includes at least one additional monomeric sugar and at least one oligosaccharide to form a product mixture including ethanol; and (b) using the ethanol to aid in crystallization of at least one non-glucose sugar in the product mixture.
  • the system includes at least one detector configured to provide data pertaining to at least one system parameter to the controller, wherein the controller is responsive to the data.
  • a sugar composition including:
  • the alpha-bonded di-glucose includes at least one member of the group consisting of maltose, isomaltose and trehalose.
  • the composition includes at least 40% total sugars.
  • the composition is provided as a solution.
  • the composition includes at least 0.001% arabinose of total sugars on a weight basis.
  • the composition includes at least 0.001% non-volatile fermentation product on a weight basis.
  • a sugar composition including (by weight relative to total sugar concentration):
  • the composition includes at least two marker molecules.
  • the composition includes at least three marker molecules.
  • the composition includes at least 0.001% arabinose of total sugars on a weight basis.
  • the oligosaccharides include at least one member of the group consisting of maltose, isomaltose and trehalose.
  • the oligosaccharides include at least one member selected from the group consisting of gentiobiose, sophorose and cellobiose.
  • the composition includes at least 0.001% non-volatile fermentation product on a weight basis.
  • a concentration of the marker molecule does not exceed 0.5%.
  • the composition includes at least 5% galactose relative to total monosaccharides by weight.
  • the composition includes at least 2% arabinose relative to total monosaccharides by weight.
  • a sugar composition including: (a) at least one of alpha-bonded di-glucose, beta-bonded di-glucose and arabinose; (b) 0.01%-20% xylose by weight relative to total sugar concentration; and (c) at least 100 PPB of a marker molecule.
  • the composition is provided as a solution.
  • the composition includes glucose between 0.001% and 5% (3, 1) of total sugars on a weight basis.
  • the composition includes at least 0.001% non-volatile fermentation product on a weight basis.
  • the alpha-bonded di-glucose includes at least one member of the group consisting of maltose, isomaltose and trehalose.
  • the beta-bonded di-glucose includes at least one member selected from the group consisting of gentiobiose, sophorose and cellobiose.
  • the composition includes at least 40% total sugars.
  • the composition includes at least two marker molecules.
  • the composition includes at least three marker molecules.
  • FIG. 2 a is a simplified flow scheme depicting events associated with practice of exemplary methods according to some embodiments of the invention
  • FIG. 2 b is a simplified flow scheme depicting events associated with practice of exemplary methods according to some embodiments of the invention.
  • FIG. 3 is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 6 b is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 7 a is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 7 b is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 8 b is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 8 c is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 9 is a schematic representation of an exemplary system according to some embodiments of the invention.
  • FIG. 10 is a simplified flow diagram of exemplary methods according to some embodiments of the invention.
  • FIG. 11 is a logic hierarchy illustrating approaches to separating products of value from lignocelluloses.
  • Embodiments of the invention relate to systems and methods for processing mixtures of sugars as well as to modified sugar mixtures found at various stages during this processing.
  • the mixture contains two or more monomeric sugars (e.g. glucose and xylose) and one or more disaccharides or longer oligosaccharide sugars.
  • some embodiments of the invention can be used to process hydrolyzates of lignocellulosic substrates.
  • these hydrolyzates result from acid hydrolysis (e.g. with concentrated HCl).
  • FIG. 1 is a simplified schematic diagram of a system for acid hydrolysis of a lignocellulosic substrate indicated generally as 100 .
  • Depicted system 100 includes a main hydrolysis reactor 110 adapted to receive a lignocellulosic substrate input 112 .
  • substrate 112 is provided as wood chips, although any “woody material” can be used instead of wood. Additional exemplary woody materials include, but are not limited to, sugar cane bagasse, sugar beets and/or their cossettes, corn stover, post harvest plants (e.g. cotton, soybean or rapeseed), switchgrass and broomgrass.
  • substrate 112 is brought into contact with a concentrated HCl solution in reactor 110 and hemicellulose and/or cellulose in the substrate are hydrolyzed to produce a mixture of soluble sugars and residual lignin. These materials are collected separately as lignin stream 120 and sugar mixture 130 , each of which contains a large amount of HCl.
  • the acid acts as a catalyst, it is not consumed in the process. In addition, residual acid content of the product and the co-products should be low in order to enable their use. Acid recovery from the hydrolyzate should be conducted under conditions minimizing thermal degradation. Alternatively or additionally, the high concentration of monomeric sugars in the presence of the HCl catalyst can cause re-oligomerization.
  • Cellulose in substrate 112 typically contains primarily beta bonds between the saccharide sub-units of the polymer chain. Dimers and longer oligosaccharides resulting from re-oligomerization can contain alpha bonds.
  • Sugar mixture 130 is processed to remove HCl and/or adjust the mixture to achieve one or more desired ratios of mixture components (e.g. disaccharides and/or monosaccharides). This processing is conducted in a sugar refining module, designated here generically as 201 .
  • a sugar refining module designated here generically as 201 .
  • additional sugar mixture is recovered from lignin stream 120 as described in co-pending PCT application IL11/000,424 which is fully incorporated herein by reference.
  • this additional sugar mixture is routed to refining module 201 .
  • this additional sugar mixture increases a total sugar yield and/or changes a composition of the mixture.
  • refining module 201 employs a flow of organic solvent 155 (solid arrows) to extract HCl 140 (dashed arrows) from sugar mixture 130 .
  • De-acidified sugars 230 are the primary product of refining module 201 .
  • Module 201 also produces a stream of HCl 140 mixed with solvent 155 (depicted as parallel dashed and solid arrows respectively for clarity) which is routed to a solvent/HCl recovery module 150 .
  • Recovery module 150 separates HCl 140 from solvent 155 . In some exemplary embodiments of the invention, separation is by distillation.
  • HCl 140 is recycled to hydrolysis reactor 110 and solvent 155 is recycled to refining module 201 .
  • De-acidified sugars 230 are present as a mixture.
  • Various components of the mixture can be harvested and/or converted as described hereinbelow.
  • Each strategy for harvest and/or conversion of specific sugars and/or sugar products represents an exemplary embodiment of the invention.
  • implementation of specific embodiments will be influenced by an initial composition of sugar mixture 230 .
  • sugar mixture 230 will contain glucose as a primary component since glucose is a primary component of lignocellulosic substrate 112 .
  • sugar mixture 230 will contain a significant amount of xylose since xylose is typically the most prevalent saccharide component of hemicellulose in lignocellulosic substrate 112 .
  • HCl hydrolysis of substrate 112 is described by way of example, sugar mixtures resulting from other processes are also amenable to use in various exemplary embodiments of the invention. These other processes include any procedure which converts a large portion of the biomass in substrate 112 to soluble sugars. Such procedures include, but are not limited to, enzymatic hydrolysis, hydrolysis with other acids (e.g. H 2 SO 4 ) and hydrolysis with “reactive fluids” (e.g. super critical or near critical water) as described in WO 2010/009343; which is fully incorporated herein by reference.
  • FIGS. 2 a , 2 b and 2 c are simplified flow schemes depicting events associated with practice of exemplary methods according to various embodiments of the invention.
  • FIG. 2 a is a flow scheme indicated generally as scheme 200 depicting an exemplary sugar mixture 230 ( FIG. 1 ).
  • mixture 230 is depicted as containing a first sugar 231 and a second sugar 232 which is optionally present (at least in part) as a precursor 233 .
  • mixture 230 typically contains a large number of different sugars, which are not depicted. Each of these different sugars could potentially be treated as a first sugar or a second sugar.
  • FIG. 2 b is a flow scheme indicated generally as scheme 202 depicting an additional processing of first sugar product 251 .
  • product 251 is subjected to an additional reaction 272 .
  • Reaction 272 can be biological or chemical. Since product 251 is provided in isolation, the specificity of reaction 272 is assured.
  • the result of reaction 272 is a modified product 282 of first sugar product 251 .
  • modified product 282 may be, for example, ethylene.
  • first sugar 231 is glucose it can be subject to selective reaction 240 in the form of homolactic acid fermentation to produce lactic acid as product 251 .
  • reaction 272 might include polymerization as part of manufacturing process 292 to produce a manufactured product 293 in the form of polylactide (PLA).
  • PLA can be used in a wide variety of consumer products 295 including, but not limited to, woven fabrics with improved ironability, microwavable trays, sutures, stents, dialysis media, drug delivery devices, bioplastics, compost bags, food packaging, disposable tableware, non woven textiles, upholstery, disposable garments, awnings, feminine hygiene products, and diapers.
  • FIG. 2 c is a flow scheme indicated generally as scheme 204 depicting additional processing of second sugar 232 and/or second sugar precursor 233 . According to various exemplary embodiments of the invention, portions, optionally all of scheme 204 can be conducted before or after separation 260 .
  • 2 nd sugar 232 is realized 234 from precursor 233 .
  • Realization 234 can include, for example, a chemical reaction (e.g. hydrolysis, oligomerization) and/or an enzymatic reaction (e.g. transglucosidation, oligomerization).
  • a chemical reaction e.g. hydrolysis, oligomerization
  • an enzymatic reaction e.g. transglucosidation, oligomerization
  • product 284 is subjected to a manufacturing process 294 to produce a manufactured product 296 which can optionally be incorporated into one or more consumer products 298 .
  • realization 232 can optionally include release of xylose from an oligomeric precursor 233 containing xylose.
  • reaction 274 could include hydrogenation to produce xylitol as product 284 .
  • manufacturing process 294 might include concentration to produce a product that is 65, optionally 70, optionally 75, optionally 80, optionally 85% or intermediate or greater percentages of total sugars by weight.
  • these sugars could be 65, optionally 70, optionally 75, optionally 80, optionally 85% or intermediate or greater percentages of xylose.
  • precursor 233 can be an oligosaccharide comprising second sugar 232 (e.g. if second sugar 232 is xylose, precursor 233 can be a xylose-comprising disaccharide or gentiobiose-comprising trisaccharide).
  • second sugar 232 is a disaccharide and/or precursor 233 includes at least two sugars, each of which includes a component of second sugar 232 , e.g. as in the case where second sugar 232 is gentiobiose and the precursor includes maltose and/or isomaltose.
  • transglucosidation means transfer of at least one carbohydrate between oligosaccharides, e.g. as in
  • Such reacting of the precursor may comprise a combination, e.g. of hydrolysis followed by oligomerization, as in
  • A-x-A and A-y-A are disaccharides composed of the same monosaccharides, but bound by a different bond, e.g. cellobiose and gentiobiose.
  • realization 234 and/or reaction 274 and/or conversion 275 can each independently include acid catalysis and/or enzymatic catalysis.
  • precursor 233 is catalyzed by HCl.
  • temperature influences kinetics of such catalysis.
  • the catalysis is enzymatically catalyzed.
  • enzymes such as alpha-glucosidase and/or beta-glucosidase and/or transglucosidases can be employed for this purpose.
  • enzymatic catalysis includes fermentation.
  • realization 234 and/or reaction 274 and/or conversion 275 can each independently include simulated moving bed hydrolysis, sequential simulated moving bed hydrolysis, and ion exchange ISEP® and/or CSEP® (Calgon Carbon Corporation; Pittsburgh, Pa.; USA).
  • FIG. 3 is a simplified flow diagram of an exemplary method for producing value from at least two sugars from within a complex mixture of sugars, indicated generally as 300 .
  • Depicted exemplary method 300 includes selectively reacting 310 a first sugar in an initial mixture which includes at least one second sugar and/or at least one second sugar precursor, to form a product mixture 320 including a product of the first sugar and separating 330 the product of the first sugar from product mixture 320 .
  • the first sugar can be glucose; selective reaction 310 can be fermentation with a micro-organism with a strong preference for glucose, to produce ethanol as a product.
  • separation 330 can be, for example, by distillation of ethanol from product mixture 320 .
  • the second sugar can be a pentose.
  • method 300 includes separating 340 at least one of the at least one second sugar from product mixture 320 .
  • At least one of said at least one second sugar is at least partly present as a second sugar precursor.
  • method 300 includes separating 342 at least one of the at least one second sugar precursor from product mixture 320 . According to these exemplary embodiments of method 300 , the method includes reacting 350 the precursor to produce the second sugar.
  • reacting of the precursor to produce the second sugar occurs in product mixture 320 or in the initial mixture prior to selectively reacting 310 (not depicted).
  • reacting 350 the precursor includes acid catalysis and/or enzymatic catalysis.
  • the second sugar is reacted to form a second sugar product (not depicted).
  • a second sugar precursor can be reacted to form a second sugar product directly without forming the second sugar as an intermediate (not depicted).
  • the second sugar product can be, for example, xylitol or a rumen bypass protein. Conversion of xylose to xylitol can be, for example, via hydrogenation.
  • Method 300 can be conducted with a high degree of efficiency. This efficiency can be expressed as one or more ratios. Optionally, such ratios can be used to characterize additional exemplary embodiments of the invention.
  • a weight ratio between the total amount of (second sugar and second sugar precursor) to the first sugar prior to selectively reacting 310 is defined as R1 and a ratio between the total amount of (second sugar and second sugar precursor) to the first sugar in product mixture 320 is defined as R2: in some exemplary embodiments of the invention the ratio of R2 to R1 is optionally greater than 4, optionally greater than 5, optionally greater than 6, optionally greater than 7, optionally greater than 10 or intermediate or larger numbers.
  • a total weight of (the second sugar and the second sugar precursor) is at least 40; optionally 50;
  • the second sugar includes a pentose.
  • the at least one second sugar includes a disaccharide.
  • the disaccharide includes trehalose and/or gentiobiose and/or kojibiose and/or nigerose and/or sophorose and laminaribiose.
  • the first sugar product has an atmospheric-pressure boiling point of less than 100° C.
  • the first sugar product forms an azeotrope with water.
  • separating 440 the product of the first sugar is followed by separating second sugar precursor 424 from product mixture 422 .
  • selectively reacting 430 the precursor includes acid catalysis and/or enzymatic catalysis.
  • hydrolyzing 520 employs a hydrolysis medium with a wt/wt ratio of mineral acid to (mineral acid+water) of at least 0.35; optionally at least 0.37; optionally at least 0.39; optionally at least 0.41; optionally at least 0.43; optionally at least 0.45 or intermediate or greater ratios.
  • exemplary mineral acids include, but are not limited to HCl and H 2 SO 4 .
  • hydrolyzing 520 employs one or more enzymes to breakdown the lignocellulose provided at 510 .
  • the enzymes can be provided as purified enzymes, cellular extracts, cell supernatants, or a culture containing living cells.
  • hydrolysis 520 employs at least one reactive fluid, to produce soluble sugars from the lignocellulose provided at 510 .
  • WO 2010/009343 As used in this specification and the accompanying claims the term “reactive fluid” has the meaning ascribed to it in WO 2010/009343; paragraph [0058].
  • WO 2010/009343 is fully incorporated herein by reference. Alternatively or additionally, one of ordinary skill in the art will be familiar with the contents of WO 2010/009343.
  • de-acidifying 530 includes selective extraction of HCl with a first extractant comprising a first solvent (S1) characterized by a water solubility of less than 10% and by at least one of: having a delta-P between 5 and 10 MPa 1/2 ; and having a delta-H between 5 and 20 MPa 1/2 , whereupon HCl selectively transfers to the first extractant to form an HCl-carrying first extract and an HCl-depleted aqueous feed.
  • S1 first solvent
  • Delta-P is the polarity related component of Hoy's cohesion parameter and delta-His the hydrogen bonding related component of Hoy's cohesion parameter.
  • the cohesion parameter or, solubility parameter, was defined by Hildebrand as the square root of the cohesive energy density:
  • ⁇ Evap and V are the energy or heat of vaporization and molar volume of the liquid, respectively. Hansen extended the original Hildebrand parameter to three-dimensional cohesion parameter. According to this concept, the total solubility parameter delta is separated into three different components, or, partial solubility parameters relating to the specific intermolecular interactions:
  • ⁇ 2 ⁇ d 2 + ⁇ p 2 + ⁇ n 2
  • delta-D, delta-P and delta-H are the dispersion, polarity, and Hydrogen bonding components, respectively.
  • the unit used for those parameters is MPa 1/2 .
  • a detailed explanation of that parameter and its components could be found in “CRC Handbook of Solubility Parameters and Other Cohesion Parameters”, second edition, pages 122-138. That and other references provide tables with the parameters for many compounds. In addition, methods for calculating those parameters are provided.
  • de-acidifying 530 includes selective extraction of HCl with an alcohol, optionally hexanol and/or 2-ethylhexanol.
  • an amount of at least one of said at least one second sugars, optionally as a precursor, in the product mixture is at least 80; optionally 85; optionally 90%, or intermediate or greater percentages, of a theoretical yield of the same second sugar in the lignocellulosic material feed provided at 510 .
  • C2 a combined concentration of (the second sugar and its precursor) in the hydrolyzate at 520 is C1 and the combined concentration of (the second sugar and its precursor) in the product mixture 320 after removal of the first sugar product is C2; then C2/C1 is greater than 1.5, optionally greater than 2 and optionally greater than 3.
  • C2 is at least 30% of saturation concentration at 25° C., optionally at least 50% and optionally at least 70%.
  • water may be removed at different stages.
  • water removal increases a concentration of one or more sugars in the solution.
  • increasing a sugar concentration brings it closer to its saturation point.
  • crystallization is more easily accomplished in proximity to the saturation point.
  • FIG. 6 a is a simplified flow diagram of an exemplary method for preparing a conversion product from a second sugar, indicated generally as 601 .
  • Depicted exemplary method 601 includes providing 610 a fermentor and fermenting 620 a medium comprising a second sugar (e.g. 232 ; 233 ; 250 ; 424 ; or steps 340 ; 350 ; 540 ) the fermentor to produce a conversion product 630 .
  • a second sugar e.g. 232 ; 233 ; 250 ; 424 ; or steps 340 ; 350 ; 540
  • FIG. 6 b is a simplified flow diagram of an exemplary method for preparing a conversion product from a second sugar and/or a first sugar product indicated generally as 602 .
  • Depicted exemplary method 602 includes providing an input stream comprising at least one of a second sugar (e.g. 232 ; 233 ; 250 ; 424 ; or steps 340 ; 350 ; 540 ) and a product of a first sugar (e.g. 251 ; 422 ; or step 330 ) and converting 621 at least a portion of said input stream to produce a conversion product 631 .
  • a second sugar e.g. 232 ; 233 ; 250 ; 424 ; or steps 340 ; 350 ; 540
  • a product of a first sugar e.g. 251 ; 422 ; or step 330
  • conversion product 631 includes at least one member selected from the group consisting of alcohols, carboxylic acids, amino acids, monomers for the polymer industry and proteins.
  • the polylactic acid based products are selected from packaging of agriculture products and of dairy products, plastic bottles, biodegradable products and disposables.
  • the polyhydroxyalkanoate based products are selected from packaging of agriculture products, plastic bottles, coated papers, molded or extruded articles, feminine hygiene products, tampon applicators, absorbent articles, disposable nonwovens and wipes, medical surgical garments, adhesives, elastomers, films, coatings, aqueous dispersants, fibers, intermediates of pharmaceuticals and binders.
  • conversion product 631 includes at least one member of the group consisting of ethanol, butanol, isobutanol, a fatty acid, a fatty acid ester, a fatty alcohol and biodiesel.
  • Some exemplary embodiments of the invention relate to a consumer product, a precursor of a consumer product, or an ingredient of a consumer product produced from a conversion product 631 .
  • the consumer product, precursor of a consumer product, or ingredient of a consumer product has a ratio of carbon-14 to carbon-12 of about 2.0 ⁇ 10 ⁇ 13 or greater.
  • the consumer product includes a marker molecule at a concentration of at least 100 ppb.
  • Marker molecules suitable for use in this context include, but are not limited to, furfural, hydroxy-methyl furfural, products of furfural or hydroxy-methylfurfural condensation, color compounds derived from sugar carmelization, levulinic acid, acetic acid, methanol, galacturonic acid, and glycerol.
  • FIG. 7 a is a simplified flow diagram of an exemplary method for recovering sugars (optionally monomeric sugars) and/or their products from a complex sugar mixture including oligosaccharides, indicated generally as 700 .
  • Depicted exemplary method 700 includes selectively reacting 710 a first sugar in a portion of an initial mixture which includes and at least one oligosaccharide to form a product mixture 720 comprising a product 721 of the first sugar.
  • the initial mixture includes one or more monomeric sugars.
  • Depicted exemplary method 700 also includes producing 730 an oligomer rich sugar fraction with a ratio of at least one of said at least one oligosaccharide to a total sugar concentration greater than a ratio of the same components in product mixture 720 .
  • method 700 includes hydrolyzing 740 the oligomer rich sugar fraction to produce additional monomeric sugars 750 . Exemplary ways to perform hydrolysis 740 are described in co-pending provisional patent application U.S. Ser. No. 61/524,839 which is fully incorporated herein by reference.
  • selectively reacting 710 the first monomeric sugar yields an alcohol 790 as a reaction product.
  • the first monomeric sugar is glucose and the alcohol includes ethanol.
  • method 700 includes use of alcohol 790 to aid in crystallization 795 of at least one of said at least one additional monomeric sugars.
  • the monomeric sugar to be crystallized is xylose.
  • separation 770 includes removal of water to increases a concentration of each sugar in the mixture.
  • separation 770 includes addition of alcohol 790 at a higher concentration than that which was present in the mixture prior to separation 760 by distillation 797 .
  • separation 770 by crystallization employs alcohol 790 at a concentration of 15; 20; 25; 30; 35; 40; 45; 50; 55; 60; 65; 70; 75; 80; 85; 90% or intermediate concentrations (W/W).
  • alcohol 790 is distilled 797 from product mixture 720 as a means of separation 760 of product 721 and re-introduced during crystallization 795 at a desired concentration.
  • these embodiments include a repetition of separation 760 (indicated by double headed arrow) to recover alcohol 790 .
  • These embodiments are advantageous in that they can achieve a high alcohol concentration which makes it feasible to crystallize sugars that are relatively far from their saturation point. However, there is an energy cost to re-distilling the alcohol for recovery.
  • separation 770 by crystallizing 795 at least one of the at least one additional monomeric sugars is followed by distilling 797 of alcohol 790 from the product mixture.
  • These embodiments are advantageous in that they involve only a single distillation, but cannot achieve the high alcohol concentrations during crystallization which are possible if distillation is conducted prior to crystallization unless alcohol is introduced from an outside source, or from a previous round of purification.
  • producing 730 an oligomer rich sugar fraction includes crystallization 795 of at least one of said at least one oligosaccharide from product mixture 720 .
  • this crystallization employs an alcohol 790 produced by selectively reacting 710 .
  • Alcohol 790 can be used to aid in crystallization of an oligosaccharide as described above for monomeric sugars.
  • separation 770 produces either crystals of oligosaccharide, or a liquid mixture enriched in oligosaccharides.
  • these oligomeric sugars can be used to produce 730 the oligomer rich sugar fraction which can subsequently be hydrolyzed 740 to produce additional monomeric sugars.
  • FIG. 7 b is a simplified flow diagram of another exemplary method for recovering sugars (optionally monomeric sugars) and/or their products from a complex sugar mixture including oligosaccharides, indicated generally as 701 .
  • Depicted Exemplary method 701 includes selectively reacting 710 a first sugar in an initial mixture which includes a first sugar and at least one oligosaccharide 722 to form a product mixture 720 comprising a product 721 of the first sugar. Depicted method 701 also includes separating 761 product 721 from product mixture 720 and hydrolyzing 741 oligosaccharide 722 to produce additional first sugar 751 .
  • the initial mixture includes a second sugar.
  • the method includes separating the second sugar.
  • FIG. 8 a is a simplified flow diagram of an exemplary method for recovering ethanol and a crystallized non-glucose sugar from a complex sugar mixture including oligosaccharides, indicated generally as 801 .
  • Depicted exemplary method 801 includes fermenting 810 glucose in a portion of an initial mixture which includes at least one additional monomeric sugar and at least one oligosaccharide to form a product mixture 812 including ethanol and using 820 the ethanol to aid in crystallization of at least one non-glucose sugar in the product mixture to produce crystals 821 .
  • the non-glucose sugar is xylose.
  • FIG. 8 b is a simplified flow diagram of an exemplary method according to FIG. 8 a in which crystals 821 are monomeric sugar crystals indicated generally as method 802 .
  • method 802 includes hydrolyzing 840 oligosaccharide enriched mother liquor 822 a to produce additional monomeric sugars 841 a.
  • FIG. 8 c is a simplified flow diagram of an exemplary method according to FIG. 8 a in which crystals 821 are oligosaccharide crystals indicated generally as method 804 .
  • Depicted exemplary method 804 begins with separation 830 of crystals 821 b comprising primarily one or more oligosaccharides and a monomeric sugar enriched mother liquor 822 b.
  • method 804 includes crystallizing 850 at least one monomeric sugar from monomeric sugar enriched mother liquor 822 b .
  • an alcohol such as ethanol 860 is used to aid in crystallization 850 .
  • crystals 821 b are hydrolyzed 824 to produce additional monomeric sugars 841 b .
  • these additional monomeric sugars include glucose.
  • FIG. 9 is schematic diagram of an exemplary system for processing a sugar mixture indicated generally system 900 .
  • Depicted exemplary system 900 includes a fermentor 910 adapted to deliver a stream of spent media 912 to a separation unit 920 adapted to separate solids 922 from spent media 912 and deliver a supernatant stream 924 .
  • separation unit 920 includes centrifugation components and/or filtration components.
  • Depicted exemplary system 900 also includes a distillation unit 930 adapted to distill an alcohol 932 from supernatant stream 924 to produce a modified supernatant 934 .
  • Adaptation to distill an alcohol can include implementation of one or more design changes which take into account the alcohol to be distilled and/or the composition of supernatant stream 924 . For example, if the alcohol to be distilled has a high boiling point, a stronger heat source may be provided. Alternatively or additionally, if there are components in stream 924 with a boiling pint close to that of the alcohol in question, a long distillation column, or two or more distillation columns in series, may be incorporated into distillation unit 930 to improve separation of the alcohol from other components.
  • the alcohol is ethanol which can be recovered at up to 95% purity.
  • Depicted exemplary system 900 also includes a primary crystallization module 940 adapted to receive at least a portion of modified supernatant 934 from distillation unit 930 and crystallize at least one sugar (crystals 942 ) therefrom to produce a mother liquor 944 .
  • distillation unit 930 also delivers at least a portion of alcohol 932 to crystallization module 940 .
  • crystallization module 940 receives alcohol from an independently provided alcohol reservoir (not depicted).
  • separation of alcohol 932 from stream 934 followed by re-mixing of these components contributes to an ability to increase the alcohol concentration in stream 934 .
  • increasing the alcohol concentration improves one or more crystallization parameters. Crystallization parameters include, but are not limited to, yield and purity of crystals. Alcohol concentrations during crystallization are optionally as described above in the context of FIG. 7 a.
  • fermentor 910 converts glucose to ethanol which is distilled by distillation unit 930 so that modified supernatant 934 is substantially free of glucose.
  • crystals 942 are of a non-glucose sugar. According to various exemplary embodiments of the invention this sugar can be monomeric or oligomeric (e.g. disaccharide or higher).
  • system 900 includes a secondary crystallization module 950 adapted to receive at least a portion of alcohol 932 from distillation unit 930 and crystallize at least one additional sugar (crystals 952 ) from mother liquor 944 to produce a spent mother liquor 954 .
  • alcohol aids in crystallization as described above in the context of module 940 .
  • secondary crystallization module 950 receives alcohol from an independently provided alcohol reservoir (not depicted).
  • Depicted exemplary system 900 also includes an alcohol recovery module 960 adapted to distill alcohol 962 from mother liquor 944 and/or spent mother liquor 954 .
  • Module 960 also produces a liquor residue 964 .
  • residue 964 is subject to anaerobic fermentation in an anaerobic fermentation module (not depicted).
  • this anaerobic fermentation produces a usable energy source such as methane.
  • methane produced in this manner is used to provide heat energy for various system components (e.g. distillation module 930 and/or alcohol recovery module 960 ).
  • exemplary system 900 also includes a hydrolysis module 970 .
  • Hydrolysis module 970 produces additional monomeric sugars 972 from an input material including dimeric sugars and other soluble oligomeric sugars.
  • the input material includes one or more of crystals 942 produced by primary crystallization module 940 ; mother liquor 944 ; crystals 952 produced by secondary crystallization module 950 and spent mother liquor 954 .
  • additional monomeric sugars 972 are delivered to fermentor 910 (as depicted) and/or to crystallization module 940 and/or 950 (not shown) by a recycling pump (not depicted).
  • Depicted exemplary system 900 includes a controller 990 adapted to control at least one of the at least one pumps.
  • system 900 includes one or more detectors (not shown) configured to provide data pertaining to at least one system parameter to controller 990 .
  • controller 990 is responsive to the data.
  • System parameters include, but are not limited to, concentration of specific sugars at specific points, total sugar concentration at specific points, alcohol concentration, temperatures, flow rates and acid concentration.
  • FIG. 10 is a simplified flow diagram of an exemplary method according to some embodiments of the invention depicted generally as 1000 .
  • Depicted exemplary method 1000 produces a first sugar product 1011 and a product of a second sugar from a mixture 1010 of sugars.
  • the product of the second sugar is xylitol.
  • xylose fraction 1040 includes 65, optionally 70, optionally 80, optionally 85% or intermediate or greater percentages of xylose on a weight basis relative to total sugars in the solution.
  • fraction 1040 may include 2, optionally 3, optionally 4% or intermediate or greater percentages of mannose on a weight basis relative to total sugars in the solution.
  • fraction 1040 may include 4, optionally 5, optionally 6% or intermediate or greater percentages of galactose on a weight basis relative to total sugars in the solution.
  • fraction 1040 may include 1, optionally 2, optionally 3% or intermediate or greater percentages of arabinose on a weight basis relative to total sugars in the solution.
  • Crystallization 1060 produces crystals 1062 of a second sugar (e.g. xylose) and a mother liquor 1070 .
  • an organic solvent such as an alcohol (e.g. ethanol or methanol) is added to the solution during crystallization 1060 to aid in precipitation of sugar crystals.
  • alcohol e.g. ethanol or methanol
  • Exemplary alcohol concentrations are provided above in the context of FIG. 7 a.
  • the resultant mother liquor 1070 can be subject to additional chromatographic separation together with an additional amount of concentrated mixture 1024 .
  • this allows at least a portion of xylose in mother liquor 1070 to be recovered by an additional round of crystallization 1060 .
  • remaining sugars 1042 can be sent to anaerobic fermentation 1044 to produce an energy source, such as methane.
  • Some exemplary embodiments of the invention relate to sugar compositions which exist as production intermediates in various methods described herein.
  • practice of the procedure outlined in FIG. 10 might produce, as an intermediate product, a sugar composition including at least 25; optionally 30; optionally 35% xylosc by weight relative to total sugar concentration with a detectable amount of at least one alpha-bonded di-glucose and a detectable amount of at least one beta-bonded di-glucose.
  • the alpha-bonded di-glucose includes maltose and/or isomaltose and/or trehalose.
  • the beta-bonded di-glucose includes gentiobiose and/or sophorose and/or cellobiose. Compositions of this general type might occur at, for example, 1020 in FIG. 10 .
  • the alpha bonded di-glucose is optionally present at a level of at least 10, optionally at least 50, optionally at least 100, optionally at least 500, optionally at least 1000 PPM or intermediate or greater levels.
  • the beta bonded di-glucose is optionally present at a level of at least 10, optionally at least 50, optionally at least 100, optionally at least 500, optionally at least 1000 PPM or intermediate or greater levels.
  • compositions includes at least 40; optionally at least 42; optionally at least 45; optionally at least 47; optionally at least 50% total sugars.
  • Compositions of this general type might occur at, for example, 1024 in FIG. 10 .
  • composition is provided as a solution, for example an aqueous solution.
  • the composition includes less than 90; optionally 80; optionally 70% xylose of total sugars on a weight basis.
  • the composition includes glucose at a concentration of at least 0.001; optionally at least 0.01; optionally at least 0.1% of total sugars on a weight basis.
  • the composition includes glucose at a concentration of less than 5; optionally 3; optionally 1% of total sugars on a weight basis.
  • the composition includes at least 0.001; optionally 0.01; optionally 0.1% arabinose of total sugars on a weight basis.
  • the composition includes at least 0.001; optionally 0.0005; optionally 0.0001% non-volatile fermentation product on a weight basis.
  • non volatile fermentation products includes but is not limited to: lactic acid, succinic acid, fatty acids, esters of fatty acids and proteins.
  • the marker molecule includes at least one, optionally at least two, optionally at least three of furfural, hydroxy-methyl furfural, products of furfural or hydroxy-methylfurfural condensation, color compounds formed on heating a sugar, levulinic acid, acetic acid, methanol, galacturonic acid, an alcohol of more than four carbon atoms, betaine, amino acids, proteins phosphate and glycerol.
  • the composition includes glucose at a concentration of 0.001; optionally 0.01; optionally 0.1% of total sugars on a weight basis.
  • the composition optionally includes glucose at a concentration of not more than 5; optionally 3; optionally 1% of total sugars on a weight basis.
  • the composition optionally includes 0.001% non-volatile fermentation product on a weight basis.
  • the concentration of marker molecule does not exceed 0.5%.
  • a total concentration of the two, optionally the three, marker molecules does not exceed 0.5%.
  • the composition includes at least 60% total sugars.
  • the composition includes mannose and/or galactose and/or arabinose.
  • the solution includes at least 3% mannose relative to total monosaccharides by weight.
  • compositions of this general type might occur at, for example, 1040 or 1050 in FIG. 10 .
  • the composition includes glucose at a concentration of at least 0.001% but not more than and 5%; optionally 3; optionally 1% of total sugars on a weight basis.
  • the composition includes at least one fermentation residue.
  • the fermentation residue includes a component of an ingredient selected from the group consisting of sugar molasses, yeast extract and corn steep liquor.
  • the concentration of marker molecule does not exceed 0.5%.
  • a total concentration of the two, optionally the three, marker molecules does not exceed 0.5%.
  • the composition includes at least 5% galactose relative to total monosaccharides by weight.
  • the composition includes at least 2% arabinose relative to total monosaccharides by weight.
  • FIG. 11 is a logic hierarchy illustrating approaches to separating products of value from lignocelluloses according to various exemplary embodiments of the invention indicated generally as 1100 .
  • Exemplary embodiments depicted by method 1100 feature a one stage hydrolysis 1130 as described hereinabove in the context of FIG. 1 . Such a hydrolysis produces a sugar mixture 1132 . Without considering the quantitative yield of any specific sugars in mixture 1132 , logic hierarchy 1100 includes various strategies for exploiting two or more sugar components in the mixture.
  • conversion 1140 includes a fermentation reaction.
  • conversion 1140 includes a chemical reaction and/or an enzymatic reaction not mediated by a microorganism.
  • conversion 1140 includes fermentation of glucoses and conversion product 1142 includes ethanol.
  • a simplified sugar mixture 1150 remains following separation of conversion product 1142 .
  • xylose serves as a second sugar in simplified sugar mixture 1150 .
  • xylose can be crystallized 1170 and then selectively converted 1180 by hydrogenation to xylitol.
  • selective conversion 1140 followed by removal of conversion product 1142 contributes to an ability to selectively convert 1180 the second sugar by providing a simplified sugar mixture 1150 .
  • crystallization 1170 is performed to remove an interfering sugar from mixture 1150 and permit selective conversion 1180 of a desired second sugar to form a desired product.
  • the term “about” refers to ⁇ 10%; optionally ⁇ 5%; optionally ⁇ 1%, optionally ⁇ 0.1%.
  • features used to describe a method can be used to characterize an apparatus and features used to describe an apparatus can be used to characterize a method.
  • Table 1 also includes a calculated projection of relative sugar concentrations (as a % of total monosaccharides) following removal of glucose by fermentation/distillation (after).
  • Results presented in Table 1 indicate that selective fermentation of glucose (optionally followed by removal of the resultant ethanol from the hydrolyzate mixture) increases the relative proportion of xylose.
  • xylose is the major monosaccharide component after glucose is eliminated.

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FI3540068T3 (fi) 2023-01-31
US20140175331A1 (en) 2014-06-26
EP2611800B1 (fr) 2019-06-12
EP3540068A1 (fr) 2019-09-18
EP2611800A1 (fr) 2013-07-10
US10240217B2 (en) 2019-03-26
EP2611800A4 (fr) 2014-01-08
US9663836B2 (en) 2017-05-30
US20160222477A1 (en) 2016-08-04
WO2012031270A1 (fr) 2012-03-08
IL207945A0 (en) 2010-12-30
BR112013005235A2 (pt) 2016-05-03
PL2611800T3 (pl) 2019-10-31
US20210310088A1 (en) 2021-10-07

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