46results about "Fructose production" patented technology

The invention discloses a parameter differential separation process, and relates to the technical field of separation. The defects in the prior art are overcome. The method specifically comprises the following steps: carrying out a generalized separation process by using a parameter differential moving bed, and operating the generalized separation process to eliminate a displacement zone in chromatographic sequential operation; the method comprises the following steps: contacting a mobile-phase liquid feeding solution with solid-phase resin / adsorbent filler through a novel mass transfer equilibrium contact method, and starting to obtain a characteristic separation curve; the multiple components contained in the mobile phase liquid feed solution are separated by a new mass transfer equilibrium contact process such that at least one component contained in the mobile phase liquid feed solution can be adsorbed onto the resin / adsorbent. The method realizes final separation of a large-scale production separation system, improves the maximum mass transfer efficiency, can also be used for a binary separation system in the separation process of glucose and fructose, reduces the consumption of washing liquid, and reduces the final power consumption.

The present invention relates to the technical field of biotechnology, particularly to an enzyme combination, a genetically modified bacterium, and its use in the production of D-allulose. The present invention relates to Bacillus subtilis co-expressing glucose isomerase and D-allulose 3-epimerase from a specific source. The resulting modified bacterium is fermented to obtain a crude enzyme solution, which is then isomerized using a high concentration of glucose as a substrate. After separation, purification, and concentration, fructoglucose syrup and D-allulose syrup are obtained. The enzyme combination provided by the present invention has a high catalytic rate relative to the substrate, significantly improving the conversion rate of D-allulose. At the same time, the present invention reduces the production costs of D-allulose by using inexpensive glucose as a raw material, and simultaneously produces fructoglucose syrup while producing D-allulose, thereby saving on the input of the fructoglucose syrup production line and significantly improving economic benefits.

The present invention discloses two component cross-linked copolymers in bead form wherein the cross-linked copolymer of the first component formed in the first step has lower cross-linker content than the cross-linker content in the cross-linked copolymer of the second component formed in the second step. These beads are further functionalized to yield strong acid cation exchange resins, strong base anion exchange resins and weak acid cation exchange resins. Ion exchange resins so synthesized exhibit operating exchange capacity (OEC) to total exchange capacity (TEC) ratio in the range of 49 to 61% and also retain more than 85% of whole bead count when subject to osmotic shock resistance test to simulate performance in usage. These ion exchange resins offer advantages in applications such as water treatment, condensate polishing, and unit operations in non-water application like drug purification, sugar processing, catalysis etc.

The method that separates a fermentation inhibitor and sugar from a sugar solution that contains a fermentation inhibitor and recovers the sugar is a method that includes using water as an eluent to separate the fermentation inhibitor and the sugar based on the difference in retention time after having brought the sugar solution that contains a fermentation inhibitor into contact with a basic anion exchange resin packed in a column, and separately recovering a fraction that contains the fermentation inhibitor and a fraction that contains the sugar, in which the basic anion exchange resin is pretreated by a solution that contains a fermentation inhibitor.

The utility model belongs to the technical field of production equipment for producing crystalline fructose from rice, and particularly relates to a crystal cultivating tank and a crystallizing device. The crystal growing tank comprises a tank body, the tank body is further provided with a heating device and a cooling device, and the heating device and the cooling device are matched with each other to adjust the crystal growing temperature. By arranging the heating device and the cooling device, when the temperature in the tank body is higher than the requirement, the cooling device can be used for cooling, and when the temperature in the tank body is lower than the requirement, the heating device can be used for heating, so that the temperature in the crystal growing tank can be controlled according to the requirement.

This invention relates to the field of chemical synthesis technology, providing a metal-modified lignin-based functional carbon, its preparation method, and its application. The preparation method includes: treating lignin using a chemical oxidation method to obtain lignin-based functional carbon; mechanically ball-milling the lignin-based functional carbon and metal acetate, washing the resulting material with ultrapure water, and vacuum drying to obtain the metal-modified lignin-based functional carbon material, which is then used to catalyze the isomerization of glucose to fructose. This invention uses lignin as a raw material to achieve the resource-based reuse of biomass; the method for obtaining the metal-modified highly active lignin-based functional carbon material is convenient, green, and safe; the metal-modified highly active lignin-based functional carbon material can not only efficiently convert glucose isomerization to fructose, but also has a short reaction time and high selectivity; the metal aluminum-modified lignin-based functional carbon catalyst obtained by this invention achieves a glucose conversion rate of 80%-100% and a fructose yield of 55%-60%.

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 invention discloses a crystallization method of fructose and crystalline fructose prepared by the crystallization method, and belongs to the technical field of crystallization. The fructose crystallization method comprises the following steps: taking isomerized fructose syrup, adding glucose oxidase, catalase and calcium carbonate under stirring and ventilation until the pH value is stable, and carrying out plate frame filtration to obtain a feed liquid A; filtering the feed liquid A through a microbial flocculant, and removing impurities through a ceramic membrane, an ultrafiltration membrane and an electrodialysis system at a certain temperature and pressure to obtain feed liquid B; evaporating and concentrating the feed liquid B, adding a nucleating agent and a sugar molecule integrating agent while stirring, and cooling and crystallizing in stages to obtain feed liquid C; and centrifuging the feed liquid C, and carrying out vacuum microwave drying to obtain crystalline fructose. The method is high in extraction yield and purity, large in treatment capacity, high in continuous degree and suitable for large-scale industrial production.

The invention belongs to the field of preparation of high value-added chemicals by biomass catalytic conversion, and particularly relates to a method for producing fructose by catalyzing glucose isomerization by using a tin phosphate / molecular sieve composite material, which comprises the following steps: step 1, pretreating a molecular sieve by using strong phosphoric acid; and 2, calcining the white powder obtained in the step 1. The P / molecular sieve is obtained. And 3, introducing Sn into the P / molecular sieve material by using an impregnation method. And 4, calcining the material obtained in the step 3 to obtain the tin phosphate / molecular sieve composite material. The tin phosphate / molecular sieve composite material provided by the invention has the advantages of high catalytic efficiency and simple preparation process.

The utility model discloses a fructo-oligosaccharide purification device with impurity separation and primary treatment, which comprises a purification cylinder, a feeding cylinder fixedly connected to the right upper end of the purification cylinder, a heating cylinder fixedly connected to the middle of the outer side of the purification cylinder, and a heating device and a screen which are mounted in the heating cylinder, the screen is installed in the middle of the feeding cylinder in an inserted mode, a motor is fixedly installed at the upper end of the cover plate, a stirring rod is fixedly connected to the output end of the motor, a scraping plate is fixedly connected to the far end of the stirring rod, and fixing mechanisms are arranged on the front side and the rear side of the cover plate correspondingly. According to the fructo-oligosaccharide purification device with the impurity separation and primary treatment functions, through the arrangement of the screen, treated fructo-oligosaccharide can be screened, so that impurities in the fructo-oligosaccharide can be separated, the cover plate, the stirring rod, the scraping plate and the purification barrel can be conveniently detached, the interior of the device is fully cleaned, and residues are prevented.

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.

Disclosed herein are aqueous compositions comprising fructose and methods of production thereof. A method for producing an aqueous composition comprising fructose can comprise, for example, conducting an enzymatic reaction by contacting water, sucrose, and a glucosyltransferase enzyme that synthesizes poly alpha-1,3- glucan having at least 30% alpha-1,3-linkages. A soluble fraction produced by such a reaction comprises at least about 55% fructose on a dry weight basis, and can be separated from insoluble poly alpha-1,3-glucan product(s), thereby providing an aqueous composition comprising fructose.

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.

“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.

The invention relates to the technical field of ion exchange, in particular to a large column ion exchange process acid-base water recovery control system and a control method thereof. By additionally arranging the acid and alkali water recovery unit, acid and alkali water meeting the concentration requirement in the regeneration process is recovered respectively, the regeneration requirements of the next group of target cation exchange columns and anion exchange columns are met, concentration grading is performed on the acid and alkali water, high-concentration waste liquid discharge is reduced, available acid and alkali resources are recovered, and the wastewater treatment cost is reduced; meanwhile, a pH monitoring module in the control unit is linked with a flow and PID module, so that the target concentration is met after the acid-base recovery water is mixed with the high-concentration acid liquor and alkali liquor in the regeneration process, and accurate control over the pH value in the regeneration process is achieved.

The utility model discloses an evaporative equipment for crystalline fructose production relates to fructose production technical field, including crystallizing jar, condenser and drive motor, the top of crystallizing jar is fixedly connected with the return flow pipe, one side of return flow pipe is connected with the recovery box, the top of recovery box is provided with three square through slots, and the inside of square through slot is placed with filter plate in initial state, and the top of filter plate is fixedly connected with the counterweight, and the side wall of square groove is hinged with the closing plate, and the side wall of square groove is provided with the moving groove, in the utility model, through setting up three square grooves and three filter plates, and setting up closing plate on the inner wall both sides of square groove, make device can complete for filter plate's disassembly fast, and also can not influence device normal filtering function while disassembling filter plate, and the hot steam produced in device also can not appear the outflow situation, meet the energy -conserving original intention.

The invention provides a catalyst for isomerizing glucose into fructose as well as a preparation method and application of the catalyst, and belongs to the field of preparation of biomass-based chemicals. The molecular sieve is used as a carrier, bimetal is loaded, and the catalyst with a core-shell structure is obtained through processes such as complex precipitation, roasting, reduction and oxidation. The catalytic performance is improved by utilizing the shape-selective effect of the molecular sieve and the metal-acid synergistic effect, and the catalytic stability is improved by combining reduction-passivation treatment, so that high conversion rate and high selectivity from glucose to fructose are realized. The catalyst provided by the invention is simple in preparation process, mild in reaction condition, high in stability and high in catalytic efficiency, and provides reliable technical support for efficient and green preparation of fructose.

The present invention relates to the technical field of biotechnology, particularly to a modified bacterium and a method for producing D-allulose. The present invention involves expressing glucose isomerase and D-allulose 3-epimerase from a specific source in Bacillus subtilis, respectively, and then fermenting the resulting enzyme combination containing glucose isomerase and D-allulose 3-epimerase. The enzyme combination is then used to catalyze the isomerization of the substrate glucose, ultimately producing D-allulose. The method provided by the present invention significantly improves the conversion rate of D-allulose and significantly shortens the conversion time from glucose to D-allulose. At the same time, the present invention allows the use of inexpensive glucose as a raw material, significantly reducing the production cost of D-allulose. The present invention also allows the synchronous production of fructose glucose syrup, thereby saving the input required for the fructose glucose syrup production line and significantly improving economic benefits.

The invention discloses a device for improving continuous separation of glucose and fructose by a simulated moving bed, and relates to the technical field of organic compound separation. The problem that in the prior art, glucose and fructose are separated is solved. The device specifically comprises an upstream storage tank module, an upstream rotary joint module, a separation module, a downstream rotary joint module, a downstream storage tank module and an inert gas supply module, and the upstream storage tank module, the upstream rotary joint module, the separation module, the downstream rotary joint module, the downstream storage tank module and the inert gas supply module are operated in parallel. According to the present invention, the resin mounted in the column is kept in a semi-dry state to eliminate the displacement zone of the traditional chromatography operation process, while reducing the consumption of the resin, the feed solution is separated into pure liquid glucose and pure liquid fructose at a yield of 100%, while reducing the consumption of water for washing and dewatering, thereby reducing the production cost. Therefore, the dry solid% concentration of the product and the by-product is improved.

The invention discloses a method for producing fructose-glucose syrup, comprising the following steps: edible starch is liquefied, saccharified, filtered, concentrated, and ion-exchanged once to obtain material A; magnesium sulfate heptahydrate solution is added to material A to obtain material B; material B is passed through a strong base anion exchange resin to obtain material C; magnesium sulfate heptahydrate solution and sodium pyrosulfite solution are added to material C to obtain material D; material D is isomerized through an isomerase column to obtain material E; material E is passed through a strong acid and weak base ion exchange resin complex bed to obtain material F; material F is concentrated to obtain F42 fructose-glucose syrup product. The method for producing fructose-glucose syrup provided by the invention uses a strong base anion exchange resin bed for the production of starch-sugar-glucose syrup, and is used for pH adjustment and refining of syrup fed to the isomerase column, so as to improve the quality of the fructose-glucose syrup product and reduce the production cost of the fructose-glucose syrup.

The present invention relates to a method of preparing kestose-containing fructooligosaccharide, and more specifically, a method of preparing kestose-containing fructooligosaccharide having a high content of kestose and excellent storage stability.

A method of recovering a sugar by separating a fermentation inhibitor and the sugar from a sugar solution containing the fermentation inhibitor, the method including: bringing the sugar solution containing the fermentation inhibitor into contact with a basic anion exchange resin filled into a column, followed by separation of the fermentation inhibitor and the sugar by a difference in retention time therebetween through use of water as an eluent, and separate recovery of a fraction containing the fermentation inhibitor and a fraction containing the sugar, wherein the basic anion exchange resin is previously treated with a solution containing the fermentation inhibitor.

A sugar mixture comprising: monosaccharides; oligosaccharides in a ratio ≥0.06 to total saccharides; disaccharides in a ratio to total saccharides ≥0.05; pentose in a ratio to total saccharides ≥0.05; at least one alpha-bonded di-glucose; and at least one beta-bonded di-glucose. Also disclosed are methods to make and / or use such mixtures.

The present invention relates to an enzyme combination, genetically engineered bacteria, and application thereof in producing D-psicose. Glucose isomerase and D-psicose 3-epimerase from specific sources are separately co-expressed in Bacillus subtilis, a combination enzyme containing glucose isomerase and D-psicose 3-epimerase is obtained through fermentation, and the combination enzyme is used to catalyze a glucose substrate to perform isomerization to eventually prepare D-psicose. The method provided in the present invention can clearly increase a conversion rate of D-psicose, which greatly reduces the time of converting glucose into D-psicose. In addition, inexpensive glucose is used as a raw material, so that the production costs of D-psicose are greatly reduced. In the present invention, fructose syrup may be synchronously produced, so that the input for a whole set of production lines of fructose syrup is omitted, thereby greatly improving the economic benefits.

The present invention relates to a digestible carbohydrate composition comprising at least 65% (w / w) glucose-based saccharides on a dry basis, wherein said saccharides have a reducing end and D-glucose monomers linked with alternating α1-6 and α1-3 glycosidic linkages, wherein a maltose unit is present at the reducing end; and 0.1 to 30% (w / w) of fructose equivalents on a dry basis; wherein said glucose-based saccharides have an average degree of polymerization greater than 12.

The invention relates to the technical field of functional materials, in particular to a 3D porous carbon loaded SnS2 modified Ca-Al-LDH material as well as a preparation method and application thereof. The invention provides a 3D porous carbon loaded SnS2 modified Ca-Al-LDH (layered double hydroxide) material as well as a preparation method and application thereof. SnS2 is selected as a light response type catalyst to modify a Ca-Al-LDH material, the composite material capable of being used for glucose isomerization in a photo-thermal catalysis system is prepared, the composite material is used for efficiently catalyzing glucose isomerization at low temperature to generate fructose, the composite material can be recycled, and the problems that a single Ca-Al-LDH material is poor in selectivity and low in conversion rate can be solved.

The utility model relates to the technical field of high fructose corn syrup decolorization, in particular to a high fructose corn syrup activated carbon decolorization device which comprises a stirring box, a feeding pipe is fixedly connected to the top end of the stirring box, a valve is fixedly connected to the outer side of the feeding pipe, a filling pipe is fixedly connected to the top end of the stirring box, and a blocking cover is in threaded connection to the top end of the filling pipe. The top end of the stirring box is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a transverse rod, and the position, close to the edge of one end, of the outer side of the transverse rod is rotationally connected with a rotating rod. The high fructose corn syrup and the activated carbon can be added into the stirring box in proportion, the activated carbon and the syrup can be fully fused through stirring of the rotating shaft, the cross rod and the rotating rod which are driven by the motor, and the activated carbon can effectively and rapidly decolor the syrup.

A composition includes a sugar source and inositol. The sugar source is one more sugars select from the group consisting of glucose, sucrose, sucralose, tagatose, galactose, high fructose corn syrup, fructose, isoglucose, and rhamnose. The composition of sugar and inositol has an unique properties that prevents or limits the signaling of TNF-α 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.