94results about "Glucose production" patented technology

The present disclosure generally relates to compositions and methods of simultaneously making two unique biointermediates from a single lignocellulosic biomass feedstock, including a hydrophobic biohydrocarbon and a water insoluble hydrophilic cellulosic biopolymer for use in the production of renewable fuels, chemicals, and other carbon neutral materials commonly derived from petroleum and other fossil resources.

A system for converting cellulosic feedstock to sugar is disclosed and has a reactor chamber configured receive the cellulosic feedstock, a crusher assembly configured to receive the cellulose feedstock wherein the crusher assembly is configured to grind the mixture under pressure to induce a reaction between the cellulosic feedstock and a natural occurring griding element in the feedstock to produce a grinded mixture and sugar, wherein the crusher assembly comprises rollers.

The invention relates to enzyme compositions comprising a glucoamylase, an alpha-amylase, and optionally a cellulolytic composition and / or a protease. The invention also relates to the use thereof in processes of producing sugars and / or fermentation products from starch-containing material by saccharifying and / or fermenting starch-containing material at a temperature below the initial gelatinization temperature.

The application discloses a preparation method of a mesoporous silicon-based composite material with phosphotungstic acid and titanium oxide simultaneously supported, and belongs to the technical field of catalytic material preparation. The method aims to solve the problems of easy aggregation of active components, easy damage of channel order and complex preparation process in the prior art. The method is characterized by the following steps: through a one-step hydrothermal synthesis strategy, a triblock copolymer is used as a structure directing agent, an alcohol solution of a titanium source precursor, a silicon source precursor and a Keggin type phosphotungstic acid is simultaneously added in an acid system, and then the mesoporous silicon-based composite material is prepared through hydrothermal crystallization, washing, drying and calcination. The method is simple in process and controllable in operation, and the obtained material has the following advantages: two-dimensional hexagonal ordered mesoporous structure, large specific surface area, high dispersion of titanium and phosphotungstic acid, intact Keggin structure, good double-acid-site synergistic catalytic effect, and suitability for acid catalytic reactions, especially in the field of biomass conversion.

A method for treating grains having starch and non-starch carbohydrates, wherein the starch is present in an amount of at least 10 wt.% based on the dry weight of the grain. The grain is contacted with a solution containing at least one α-hydroxysulfonic acid; and to react under acid hydrolysis conditions to produce a product that is suitable for producing chemicals and / or fuel.

Described is a process for releasing soluble starch hydrolysates or hydrolysed starch syrup from substantially intact corn kernels during high temperature steeping at a temperature at or above the gelatinization temperature of starch in the corn kernels, and the recovery of protein and oil-enhanced, carbohydrate-depleted residuals that are ideally suited for use as high quality animal feed or other food-grade products.

The present application relates to starch production technical field, especially disclose a kind of green preparation method for modified starch for replacing hydroxypropyl distarch phosphate.The green preparation method, cassava starch is used as raw material, specifically includes the following steps: (1) cassava starch is mixed with water uniformly, and starch suspension is prepared;(2) adding alpha-amylase to starch suspension for glycosidic bond enzymolysis, then passivate enzyme activity;(3) the enzymatic hydrolysate is used to hexose oxidase and oligomeric glucan is subjected to lactonization reaction, then passivate enzyme activity;(4) the final enzymatic hydrolysate is centrifuged, washed with water, the precipitate is freeze-dried, and enzyme modified cassava starch is obtained.The paste viscosity, freeze-thaw stability, shear resistance, anti-aging and other chemical properties of the enzyme modified cassava starch prepared by the present application are close to or better than hydroxypropyl distarch phosphate, and the preparation process is simple, short cycle, green and safe, low in production cost, simple in equipment, suitable for industrial production, and safe and pollution-free during production.

The present invention relates to a process for producing raw juice (14) for making sugar, wherein sugar-beet cossettes (11) are fed to an extraction device (20), for example an extraction tower or a diffusion trough, and sugar-beet-cossette remains (13) and raw juice (14) are drawn off from the extraction device (20), wherein a first near-infrared spectroscopy device (21) is used to record first measurement data concerning the sugar-beet cossettes (11) which are fed to the extraction device (20) and / or a second near-infrared spectroscopy device (22) is used to record second measurement data concerning the sugar-beet-cossette remains (13) which are drawn off from the extraction device (20) and / or a third near-infrared spectroscopy device (23) is used to record third measurement data concerning the raw juice (14) which is drawn off from the extraction device (20). The invention also relates to a sugar-production installation and to a process for making sugar, wherein raw juice (14) is produced and sugar is made from the raw juice (14) in subsequent process steps.

The present invention relates to a process for converting lignocellulosic biomass by contacting, in aqueous phase, pretreated lignocellulosic biomass with at least one biocatalyst (3) in a first reactor (1) containing a reaction medium comprising said pretreated lignocellulosic biomass (2) in aqueous phase and said biocatalyst, said process comprising: (a) a first liquefaction step by adding said pretreated lignocellulosic biomass and at least one biocatalyst to said reactor without withdrawing all or part of said reaction medium from said reactor, and (b) a second continuous liquefaction step, with continuous withdrawal from said first reactor of a portion of said reaction medium, addition of at least one biocatalyst, and continuous addition of pretreated lignocellulosic biomass. Figure for the abstract: Fig. 2

The invention relates to a method for treating lignocellulosic biomass, comprising: b) a step of acidic or neutral pretreatment of the biomass to produce an acidic or neutral pretreated biomass, which is carried out alternately with b1), b1) a step of alkaline pre-treatment of the biomass in advance under acidic, neutral or alkaline conditions to produce an alkaline pre-treated biomass, followed by c) a step of enzymatic hydrolysis of the acidic pre-treated biomass and / or the alkaline pre-treated biomass to obtain a hydrolyzed biomass, d) a step of solid / liquid separation of the hydrolyzed biomass in sugar form obtained at the end of step c) or a step of solid / liquid separation of the hydrolyzed biomass in sugar form obtained at the end of step c) and then treated in a step following enzymatic hydrolysis of step c), to obtain separated juice and unconverted solid residues, e) a step of recycling said solid residue to the alkaline pretreatment step b ').

According to the present invention, it is possible to efficiently produce proteins by culturing a filamentous fungus belonging to the genus Trichoderma using a medium containing a corn hull pulverization product having a relative particle mass peak in a particle size range of 70-150 µm in a volume-based particle size distribution obtained by a measuring method based on a laser diffraction and scattering method.

The application discloses a preparation method and application of a supported nickel-based catalyst, and relates to the technical field of catalysts, in particular to a preparation method of a supported nickel-based catalyst.The method comprises the following steps: mixing and stirring nickel nitrate hexahydrate and lanthanide nitrate, adding a biomass template agent in the stirring process, and obtaining a wet gel through water bath heating, wherein the molar ratio of C6 of the biomass template agent to the total mass of the nickel nitrate hexahydrate and the lanthanide nitrate is 1.5:1-5:1; drying, pre-calcining, calcining, activating and passivating the wet gel to obtain the supported nickel-based catalyst, and the pre-calcining temperature is 300-500 DEG C.The preparation method is simple, and the high specific surface area can effectively strengthen hydrogen dissociation and adsorption and activation of substrate molecules such as glucose, so that efficient conversion of glucose and maleic anhydride is realized.

This invention discloses a mesoporous silica-based composite material with phosphotungstic acid simultaneously immobilized with titanium oxide and its cellulose hydrolysis method, belonging to the field of biomass catalytic conversion technology. This invention aims to solve the problems of easy desorption of active components, low catalytic efficiency, and poor cycle stability in existing solid acid catalysts during cellulose hydrolysis. This method uses an ionic liquid as the reaction medium and a titanium-silicon-supported phosphotungstic acid composite material with a two-dimensional hexagonal ordered mesoporous structure prepared by a one-step hydrothermal synthesis as the solid acid catalyst, catalyzing the hydrolysis of cellulose to reduce sugars in the presence of water. This invention achieves highly efficient cellulose conversion through the synergistic catalytic effect of the two acid sites combined with the good solubility of cellulose in the ionic liquid. The catalyst exhibits excellent recyclability, the process conditions are well-defined, it meets the requirements of green chemistry, and it is applicable to the field of biomass resource utilization.

A method for hydrolyzing cellulose into sugar to produce spherical capacitive carbon for the deep utilization of biomass and carbon materials. The present disclosure includes the following steps of: (1) crude cellulose pretreatment; (2) alkaline hydrolysis of cellulose; (3) separation of the cellulose from a hydrolyzed sugar liquor; (4) drying of an alkali-containing hydrolyzed sugar; (5) sintering of spherical capacitive carbon; (6) capacitive carbon post-processing; and (7) alkali recycling. In the method, biomass is used as a raw material, high-purity cellulose and hydrolyzed sugar are obtained through deep hydrolysis, the spherical capacitive carbon is sintered with the hydrolyzed sugar instead of sucrose and starch, and alkali is recycled. Pollution and waste are not generated, and more than 80% of the alkali can be recycled.

The invention relates to a process for treating lignocellulosic biomass, employing at least one reactor (9; 14) for treating said biomass, said reactor (9; 14) being equipped with a feeding device (6; 11) having a biomass inlet and a biomass outlet, said biomass outlet being in fluidic connection with an inlet of the reactor, such that: - a residue (8; 13) is extracted from the biomass as it passes through the feeding device (6; 11) to the reactor (9; 14) via an extraction outlet provided in said device, said residue being a mixture of solid and liquid; - said residue is separated into a solid residue (32; 42) and a liquid residue (31; 41); - at least a portion of the solid residue (32; 42) is reintroduced into the feeding device, or into one of said feeding devices. Figure for the abstract: Fig. 2

To provide methods for treating cellulosic biomass to produce cellulosic sugars, and products thereof.SOLUTION: A two-step method for activating cellulosic feedstock is described. The feedstock is subjected to a first high-temperature activation step at a temperature above 190°C. and a second activation step at a lower temperature under alkaline conditions. Also described are methods and compositions for the enzymatic hydrolysis of activated cellulose using one or more cellulase enzymes, a surfactant and polyaspartic acid. Also described are products of the methods.SELECTED DRAWING: None

The present invention relates to a method for treating lignocellulosic biomass, the method using at least one reactor (9; 14) for treating the biomass, the reactor (9; 14) being provided with a supply device (6; 11) having a biomass inlet and a biomass outlet, the biomass outlet being in fluid communication with the inlet of the reactor, whereby, when the biomass passes through the supply device (6; 11) and is sent to the reactor (9; 14), a residue (8; 13), which is a mixture of solids and liquids, is extracted from the biomass via an extraction outlet provided in the device, the residue being separated into a solid residue (32; 42) and a liquid residue (31; 41), and at least a part of the solid residue (32; 42) being returned to the supply device or one of the supply devices.

The present invention comprises: a decomposition condition input unit to which decomposition conditions, a target amount, the kind of decomposition product, and a decomposition target material are inputted; a measurement data acquisition unit which acquires measurement data of at least either of the state of the decomposition target material to be decomposed or an emerging product that emerges through decomposition of the decomposition target material; an analysis data accumulation unit which accumulates analysis data on the state of polysaccharides constituting biomass in a decomposition process for each of the conditions, the emerging product that emerges through decomposition of the polysaccharides, and reaction products generated in the decomposition process; a reaction product estimation unit which estimates, on the basis of the decomposition conditions, the measurement data, and the accumulated analysis data, the reaction products generated through decomposition of the decomposition target material; a determination unit which selects the decomposition product from the estimated reaction products and determines whether or not the generated amount of the decomposition product has reached the target amount; and a control unit which performs control in which, when the determination unit determines that the target amount has been reached, supply of energy or a substance for decomposing the polysaccharides is stopped, and when the determination unit determines that the target amount has not been reached, the supply is continued.

A cellulose saccharification method including an introduction step of introducing water, a raw material containing cellulose, and a surfactant into a saccharification vessel so as to obtain a liquid mixture, an agitation step of agitating the liquid mixture due to rotation of an impeller portion, and a detection step of detecting a torque sensed by the impeller portion, wherein regarding the agitation step, after agitation is performed until an amount of the torque changed in a unit time period becomes less than or equal to a predetermined value, when the torque is more than or equal to a threshold value, the surfactant is additionally introduced into the liquid mixture, or when the torque is less than the threshold value, a pH adjuster and an enzyme are introduced into the liquid mixture.

An aqueous binder composition for mineral fibres comprises: (a) a sugar syrup containing a reducing sugar and having a dextrose equivalent DE of at least 50 and less than 85; (b) a polycarboxylic acid component; (c) an amine component; and, optionally, (d) a reaction product of a polycarboxylic acid component (b) and an amine component (c).

The utility model relates to the technical field of filtering devices, in particular to a membrane device for increasing production of macromolecular dextran, which is characterized in that materials are stored through a storage device, are supplied through a supply device, are circulated through a circulating device and are subjected to membrane filtration through the membrane filtering device; reinforcing circulation is carried out through the reinforcing circulation device; comprising a console; the system further comprises a storage device, a feeding device, a circulating device, a membrane filtering device and a reinforced circulating device, and the storage device, the feeding device, the circulating device, the membrane filtering device and the reinforced circulating device are all installed on the operation table. The storage device is used for storing, the feeding device is used for feeding, the circulating device is used for circulating, the membrane filtering device is used for membrane filtering, and the reinforced circulating device is used for reinforced circulation.

The invention relates to the technical field of biomass resource utilization, in particular to a method for preparing corn stalk syrup from green corn stalks and application. The method for preparing the corn stalk syrup comprises the following steps: S1, raw material pretreatment: cutting green corn stalks into sections of 3cm, and performing soaking treatment with a surfactant; s2, squeezing and separating: carrying out two-stage squeezing on the pretreated straws, namely carrying out first-stage rolling crushing and second-stage spiral squeezing, and separating straw normal juice and straw residues; s3, enzymolysis saccharification: adding a compound enzyme preparation into the normal straw juice, and performing two-stage enzymolysis; s4, membrane separation and purification: carrying out separation and purification on the saccharified liquid by adopting an ultrafiltration-nanofiltration combined technology; s5, vacuum concentration: concentrating the purified sugar solution to prepare corn stalk syrup; and S6, by-product treatment: carrying out steam explosion treatment on straw residues generated by squeezing, and carrying out anaerobic fermentation to prepare feed or compression molding to prepare fuel particles. The invention constructs a high-efficiency and low-cost process for preparing sugar from green corn straws, and realizes full-quantitative utilization of residues.

The present invention relates to a method for extracting high purity xylose liquid and cellulose from corn stover, which includes the steps of raw material selection, raw material pretreatment, alkali treatment, acid hydrolysis and stepwise alkali treatment. The present invention is to extract high purity xylose liquid and cellulose from corn stover by gradient selective purification, which maximizes the extraction of xylose from corn stover with the lowest possible cost process, while separating and extracting high purity cellulose products from stover residue.

A process for hydrolysing plant-based biomasses, cardboard articles, cellulose residues and other hydrolyzable materials such as PLA, of any degree of moisture, using concentrated hydrochloric acid.

An improved dry grind system and method for producing a sugar stream from grains or similar carbohydrate sources and / or residues, such as for biofuel production, using membrane filtration. In particular, a sugar / carbohydrate stream, which includes a desired Dextrose Equivalent (DE) where DE describes the degree of conversion of starch to dextrose (aka glucose) and / or has had removed therefrom an undesirable amount of unfermentable components, can be produced after saccharification and prior to fermentation (or other sugar conversion process) using membrane filtration, with such sugar stream being available for biofuel production, e.g., alcohol production, or other processes. In addition, the systems and methods also can involve the removal of certain grain components, e.g., corn kernel components, including protein, oil and / or fiber, prior to fermentation or other conversion systems. In other words, sugar stream production and / or grain component separation occurs on the front end of the system and method.

A composition includes a sugar source and inositol. The sugar or a sugar source is one more sugars select from the group consisting of glucose, sucrose, sucrolose, tagatose, galactose, high fructose com syrup, fructose, isoglucose, and rhamnose. The composition of sugar and inositol has an unique properties that prevents or limits the signaling of TNF-a and associated pro-inflammatory cytokines when metabolized by an individual consuming the composition. Accordingly, the composition can be advantageously used to control blood glucose levels, treat diabetes and related conditions as well as treat diseases based on an inflammatory response.

Processes disclosed are capable of converting biomass into high-crystallinity nanocellulose with surprisingly low mechanical energy input. In some variations, the process includes fractionating biomass with an acid (such as sulfur dioxide), a solvent (such as ethanol), and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; and mechanically treating the cellulose-rich solids to form nanofibrils and / or nanocrystals. The total mechanical energy may be less than 500 kilowatt-hours per ton. The crystallinity of the nanocellulose material may be 80% or higher, translating into good reinforcing properties for composites. The nanocellulose material may include nanofibrillated cellulose, nanocrystalline cellulose, or both. In some embodiments, the nanocellulose material is hydrophobic via deposition of some lignin onto the cellulose surface. Optionally, sugars derived from amorphous cellulose and hemicellulose may be separately fermented, such as to monomers for various polymers. These polymers may be combined with the nanocellulose to form completely renewable composites.

The invention relates to a process for treating lignocellulosic biomass, comprising - a) a step of impregnating the biomass with a liquor to obtain impregnated biomass - b) a step of cooking the impregnated biomass, optionally accompanied by a steam explosion, to obtain pre-treated biomass - c) a step of enzymatic hydrolysis of the pre-treated biomass, to obtain hydrolyzed biomass in the form of sugar(s) - d) a solid / liquid separation step of the hydrolyzed biomass in the form of sugar(s) or of the hydrolyzed biomass in the form of sugar(s) and then treated in one or more further steps subsequent to step c) of enzymatic hydrolysis, in order to obtain a separated juice and an unconverted solid residue, - e) a step of recycling at least a part of said unconverted solid residue from step a) of impregnation and / or step b) of cooking. Figure for the abridged version: Fig. 1

“Parametric Differential Moving Bed” named as PDMB, characterizes by obtaining target separation system's elution profile via optimized chromatography's separation parameters between selected solid sorbent and mobile phase; such generalized process employ an apparatus transforming such profile for mass production purpose, wherein disclosed apparatus bypassing imperfections observed in chromatography via new mass transfer equilibrium contact method, differential set-up between two phases, eliminating displacement zone via maintaining installed resin / adsorbent in semi-dry status thus enhancing maximum mass transfer efficiency. Through implementing aforesaid methods, disclosed apparatus further employs single stage recycle procedures to simulate moving beds operation in confined closed loop in differential protocols; which comprise multiple modules sequentially connected, yet each functions independently and simultaneously feeding feed solution, isolating at least one desired component, recycling mobile phase, concentrating multiple isolated components, regenerating adsorbent, washing and sanitizing; apparatus further integrate additional sequential unit operation installing other type solid phase material within.

A method for producing sugar anhydride, comprising: (1) first heat treatment step of heating polysaccharide having reducing end group at 130-350° C. in the presence of C1-C10 alcohol compound free of an acetal structure; (2) second heat treatment step of heating the first heat treated polysaccharide for pyrolysis to form a gaseous sugar anhydride, the second heat treatment forming no char or only filmy char and forming no carbon monoxide or some carbon monoxide such that the amount of carbon monoxide formed is not more than 5 parts by weight per 100 parts by weight of the absolute dry weight of the polysaccharide; and (3) recovery step of cooling the gaseous sugar anhydride to a temperature not higher than the boiling point thereof. According to this method, sugar anhydride can be easily produced at a high yield.