146results about "Saccharides production" patented technology

The utility model discloses a suspension type stirring paddle capable of shortening hydrolysis time, which comprises a stirring shaft, a propeller hub and blades, and the stirring shaft is connected with the propeller hub through a plurality of positioning screw holes and fixing screws; a plurality of hanging lugs are horizontally arranged on the periphery of the propeller hub along the center of a shaft hole of the stirring shaft; the hanging lug is provided with a hanging lug pin hole and is connected with the paddle through a fixing pin; each paddle comprises a groove and a blade; and groove pin holes are formed in the two ends of the groove, and the groove pin holes and the hanging lugs are connected in series through the same fixing pin. According to the utility model, the situation that the motor and the stirring paddle are damaged due to resistance such as straw stacking and winding can be effectively avoided, the manufacturing and processing precision of the stirring paddle is also easily ensured, and the stirring paddle is convenient to disassemble, assemble and transport and is very suitable for large-scale production and application.

The energy-saving concentration equipment comprises a concentrator provided with a liquid discharging pipe and a steam outlet, a liquid conveying pipe and a steam pipe are vertically arranged in the concentrator, a first rotating connector is arranged at the top of the steam pipe and the top of the liquid conveying pipe, a second rotating connector is arranged at the bottom of the steam pipe, and a plurality of rotating discs are arranged outside the liquid conveying pipe; the rotating disc is of a cavity structure, the steam pipe is sleeved with the rotating disc, the rotating disc is fixedly connected with the steam pipe in a sealed mode, a gas conveying pipe is arranged in the rotating disc, the gas conveying pipe penetrates through the liquid conveying pipe and is communicated with the steam pipe, a liquid discharging opening for discharging liquid to the surface of the rotating disc is formed in the liquid conveying pipe, a motor is arranged on the concentrator, and the motor is used for driving the liquid conveying pipe and the steam pipe to rotate synchronously. Secondary steam generated by evaporation of a large rotating liquid film in the concentrator is recompressed through the steam compressor, one part of the recompressed secondary steam is used for heating feed liquid in the preheater, the other part of the recompressed secondary steam is used for supplementing heat in the concentrator, and compared with a falling film evaporator, energy is saved, and the evaporation effect is improved.

The invention discloses a preparation method of cellooligosaccharide, which is characterized by comprising the following steps: mixing lignocellulose biomass with an L molecular sieve, carrying out ball milling, adding a solvent for dissolving, carrying out solid-liquid separation on the L molecular sieve, and drying to obtain the cellooligosaccharide, the chemical composition of the L molecular sieve is as follows: 1 to 5 percent of K2O, 1.0 percent of Al2O3, 5 to 10 percent of SiO2 and 1 to 5 percent of H2O, and the L molecular sieve has a straight pore channel. The L molecular sieve prepared by the method can selectively shear glucosidic bonds of cellulose to prepare cello-oligosaccharide, is higher in catalytic efficiency, and can be repeatedly used; on one hand, a large amount of water or other solvents are not needed to participate in reaction, and the advantages of environment friendliness, low cost and the like are achieved; on the other hand, the original ecological lignocellulose biomass is directly used as a raw material, and the hydrogen bond is more efficiently destroyed and the hydrolysis is rapid by utilizing an intertwining structure of cellulose and lignin in the original ecological lignocellulose biomass.

This biomass extract is a water-soluble biomass extract which is extracted from a biomass raw material containing lignin or hemicellulose, and contains more carbon than the carbon content of saccharides contained in the biomass raw material. This method for producing a biomass extract comprises: heating and pulverizing a biomass raw material to prepare a biomass pulverized product; and extracting a biomass extract from the biomass pulverized product with water.

Non-dried allulose crystals are dried in a temperature treating step (b) in a drying apparatus at a temperature of about 25° C. to about 70° C., and in a conditioning step (c). The temperature treating step (b) may be carried out (b1) at atmospheric pressure and a residence time of about 5 minutes to about 5 hours. The temperature treating step (b) may be carried out (b2) under reduced pressure and constant temperature and a residence time from about 40 minutes to about 5 hours. The conditioning step (c) may be carried out (c1) over a period of about 30 minutes to 7 hours at a temperature from about 40° C. to about 70° C. The conditioning step (c) may be carried out (c2) over a period of about 15 minutes to about 90 hours at about 30 to about 60% relative humidity, and a temperature of about 25 to about 40° C.

The invention provides an energy-saving production process of xylose. The energy-saving production process comprises the following steps: crushing corncobs; a hydrolysis step; decolorizing with activated carbon; removing carbon; performing high-pressure membrane concentration; a step of adding calcium for neutralization; a step of over-carbon saturation reaction; ion exchange; performing secondary membrane concentration; carrying out secondary decolorization and interchange; moisture is removed through a triple-effect or higher-effect evaporator, and the sugar degree is increased to 65%; cooling and crystallizing the high-concentration liquid to generate high-purity xylose powder, and drying the xylose powder; warehousing finished products, sealing boxes of the obtained finished products, bagging and entering a warehouse; the energy-saving xylose production process has the advantages that the membrane concentration equipment is introduced into the production process before neutralization, so that the volume of all subsequent liquid is reduced, and the scale of subsequent treatment equipment and the consumption of water are reduced. A large amount of organic acid is removed in the concentration process, occupation of the organic acid on resin is reduced, and the exchange rate is increased; all substances except the organic acid are concentrated, and after the concentration is increased, a large amount of salt is removed through neutralization, so that the treatment content of a subsequent impurity removal procedure is reduced.

The utility model discloses an integrated secondary separation device for xylooligosaccharide extracting solution, which relates to the technical field of concentration equipment and comprises a separation tank and a cleaning component arranged in the middle of the right side of the separation tank. The cleaning assembly comprises a shell, a driving motor, a driving shaft, a cam, a first reset spring, a transverse plate, a movable sealing plate, a molecular sieve filter, a brush head, a swing rod and a second reset spring, the driving motor is installed at the front end of the shell, the output end of the driving motor penetrates through the front end of the shell to be connected with the driving shaft, and the driving shaft is sleeved with the cam. According to the integrated secondary separation device for the xylooligosaccharide extracting solution, when the surface area of a molecular sieve filter is reduced due to material attachment, a cleaning agent in an agent tank is pumped to a connecting hose and a spray head branch pipe through a water pump, and a dispersed water column spraying effect is realized through spray heads, so that the cleaning agent can be uniformly sprayed to each position of the molecular sieve filter; and clean flushing is ensured.

The invention relates to the technical field of resin preparation, in particular to macroporous weak-base anion exchange resin as well as a preparation method and application thereof. The crosslinked styrene-divinylbenzene microsphere matrix obtained by a preparation process of regulating and controlling the crosslinked styrene, the divinylbenzene and the pore-foaming agent and adding the crosslinking agent has the advantages of high mechanical strength, controllable specific surface area, adjustable pore diameter and the like. A macroporous weak base anion exchange resin; according to the method, the total exchange capacity reaches 4.8 mmol / g or above, the resin sphericity in the fatigue strength of 100 cycles is 90% or above, the resin sphericity in the fatigue strength of 300 cycles is 70% or above, the treatment volume ratio (BV) in the first cycle in the xylose decolorization process is 80 or above, and the purposes of improving the resin quality, reducing the environmental pollution and improving the energy efficiency ratio can be achieved.

The present application belongs to the field of separation of agroforestry biomass components, and provides a method for subcritical hydrolysis and alkaline DES treatment of castor straw fiber to hydrolyze associated oligomeric xylose and micro-nano lignin. The subcritical hydrolysis method is used to treat castor straw raw materials to obtain a large amount of oligomeric xylose, a small amount of micro-nano low molecular weight lignin and a hydrolysis residue rich in cellulose and lignin; then the hydrolysis residue is treated with alkaline deep eutectic solvent (DES) to obtain a slurry rich in cellulose and micro-nano high aryl ether bond lignin. Finally, the slurry rich in cellulose is enzymatically hydrolyzed by biotechnology to obtain high-yield glucose products. The present application integrates subcritical hydrolysis reaction and alkaline DES treatment technology, and can obtain various high-value-added products of castor straw biomass under mild reaction conditions, thereby providing technical support for the value-added of castor industry and the utilization of castor straw resources.

The present invention relates to an enzymatic process for the preparation of a maltotetraose enriched composition.

A hydrogel dressing with bacteriostatic repairing effect comprises the following components in parts by weight: honeysuckle hydrolat 18-22 parts, sanghuang polysaccharide extract 6-8 parts, gelatin 1-3 parts, humectant 2-4 parts and nutrient agent 1-3 parts. The polysaccharide in sanghuang powder is extracted by ultrasonic synergistic cellulase method, cellulase can effectively degrade cellulose in plants, and then effectively break the plant cell wall, so that the plant cell polysaccharide is effectively dissolved, thereby improving the extraction amount of sanghuang polysaccharide. The process is simple, low in price, mild in conditions, and pollution-free to the environment, and is conducive to green industrial production. The sanghuang polysaccharide prepared by the application has strong antibacterial ability and good antioxidant capacity, and is easier to deeply nourish the skin. The weak acid honeysuckle hydrolat with strong anti-inflammatory and antibacterial ability and natural source is used instead of deionized water to prepare cosmetics. The weak acid honeysuckle hydrolat is more suitable for the skin due to its weak acidity, and the special plant fragrance emitted by the weak acid honeysuckle hydrolat can also cheer the body and mind.

The present invention relates to the technical field of concentrated solution preparation, and in particular to a concentrated solution preparation process after the extraction of mogrosides, a concentrated solution, and an application. The concentrated solution preparation process after the extraction of mogrosides comprises the following steps: S1. The mogroside aqueous solution passes through an adsorption resin column, and the chromatographic solution discharged from the adsorption resin column is collected; S2. The chromatographic solution is concentrated by vacuum decompression to obtain a semi-finished concentrated solution with a specific gravity of 1.12-1.39; S3. The semi-finished concentrated solution is sterilized and cooled to obtain the concentrated solution. The eluate discharged from the mogroside adsorption resin column is used as a raw material, and one fruit is used for multiple purposes, which increases the added value of monk fruit, reduces the raw material purchase cost at the breeding end, and is beneficial to the investment in the breeding industry; the preparation process is simple, and the discharged concentrated steam has no impact on the environment, saving process equipment investment and production costs; the above-mentioned concentrated solution has an outstanding use effect in breeding, and when the addition amount is only 0.1%-0.5%, it has a good improvement on the breeding effect.

The invention discloses a high-efficiency environment-friendly starch sugar production method, which comprises: (1) crushing sorghum starch, screening, adding into water, adjusting the pH value, adding alpha-amylase and ferulic acid, completely liquefying, adding saccharifying enzyme and potassium sorbate, and saccharifying; and (2) refining and concentrating the saccharified sorghum starch in the step (1), then drying high-concentration sorghum starch syrup to obtain sorghum starch sugar powder, and finally packaging to obtain a finished product.

The invention discloses a special extraction device for a stachyose production process, and relates to the field of stachyose preparation, the special extraction device comprises a drying cylinder, a feeding mechanism for spraying stachyose concentrate is arranged at the top in the drying cylinder, and a hot air mechanism is arranged at the bottom in the drying cylinder; a scraping mechanism is arranged in the drying cylinder and comprises an arc-shaped scraping plate attached to the inner wall of the drying cylinder, and the arc-shaped scraping plate is driven to move in a reciprocating mode so as to scrape away materials attached to the inner wall of the drying cylinder. And through the arranged arc-shaped scraping plate, materials (stachyose concentrate) attached to the inner wall of the drying cylinder can be scraped away, and the caking phenomenon caused by long-time drying is avoided.

The invention belongs to the technical field of sugar alcohol production, and particularly relates to a method for preparing mannose by taking palm meal as a raw material. Comprising the following steps: (1) extraction: carrying out subcritical extraction on palm meal to obtain palm oil and degreased meal; (2) steam explosion pretreatment: performing steam explosion on the degreased meal to obtain steam explosion slag; (3) enzymolysis: mixing the steam explosion residues with protease liquid for enzymolysis to obtain enzymolysis residues and enzymolysis liquid; (4) preparing mannose: hydrolyzing the enzymolysis residues with dilute acid to obtain hydrolysate, and performing decoloration, ion exchange, chromatographic separation, concentration, crystallization, centrifugation and drying on the hydrolysate to obtain mannose; and (5) preparing the palm peptide: removing zymoprotein in the enzymatic hydrolysate, filtering through an organic membrane to obtain membrane filtrate, and performing ion exchange, concentration and spray drying on the membrane filtrate to obtain the palm peptide. According to the method, mannose in the palm meal is extracted, and a small amount of by-products palm oil and palm peptide are obtained, so that the comprehensive utilization value of the palm meal is improved.

To provide a method for producing saccharides selected from starch and / or starch degradation products, which produces less off-taste and flavor than conventional methods; to provide saccharides obtained by the method; to provide saccharide-containing foods; and to provide a method for improving the flavor of saccharides.SOLUTION: A method for producing saccharides with improved flavor, which is selected from the group consisting of starch and / or starch degradation products, is characterized by comprising a bubbling step of bubbling a liquid in which the saccharides and / or saccharide raw materials are dissolved and / or dispersed. By this method, saccharides with improved flavor can be obtained by reducing the off-taste and flavor originating from the raw materials. Therefore, saccharide-containing foods containing this saccharide also have reduced the off-taste and flavor originating from the saccharide raw materials and have improved flavor. The present invention also provides saccharides obtained by the method for producing saccharides, saccharide-containing foods, and a method for improving the flavor of saccharides.SELECTED DRAWING: Figure 1

Provided are i) an amorphous carbohydrate having improved chemical stability and / or physical properties, ii) a method for making an amorphous carbohydrate having improved chemical stability and / or physical properties, and iii) a method for improving the chemical stability and / or physical properties of an amorphous carbohydrate.

The present invention belongs to the technical field of catalyst synthesis, and specifically relates to a composite mesoporous molecular sieve catalyst and its application in the preparation of arabinose. The catalyst of the present invention uses mesoporous molecular sieve SBA-15 as a carrier and metal oxides such as tin, aluminum, cobalt, and cerium as active ingredients, and can be used to catalyze the hydrolysis reaction of crop straw, residues, etc. x O y / SBA‑15 catalyst not only has the advantages of solid acid and the acidity characteristics of Lewis acid, but also does not contain SO4 2‑ ions, has excellent catalytic performance, and can be recycled for multiple times. The mesoporous molecular sieve SBA-15 is prepared by the following steps: 1) mixing the template with tetraethyl orthosilicate and hydrochloric acid to obtain a reactant; 2) reacting the reactant for 12-24 hours to obtain a solid product, washing, drying, and roasting to obtain the mesoporous molecular sieve SBA-15. The catalyst prepared by the present invention is used in the catalytic hydrolysis reaction of corn husks, and arabinose can be directly obtained, with a high yield of the target product and good application prospects.

The invention belongs to the technical field of xylose preparation, and particularly provides a xylose stock solution continuous ion-exchange purification device which comprises a plurality of ion-exchange tanks which are communicated through pipelines to form a continuous ion-exchange purification system, the ion-exchange tank located at the head end is communicated with a xylose stock solution inlet pipe, and the ion-exchange tank located at the tail end is communicated with a xylose stock solution outlet pipe; an ion exchange tank inlet is formed in the top of the ion exchange tank, a plurality of supporting plates are fixedly connected to the middle of the side wall of the ion exchange tank, a first electrode column is fixed to one supporting plate and electrically connected to a power source, an electrode column connecting frame is fixedly connected to the bottom of the supporting plate, and an electrode base is arranged on the top of the electrode column connecting frame and electrically connected to the power source. A supporting frame is fixed to the end of the supporting plate, a resin cage is detachably fixed to the supporting frame, resin is arranged in the resin cage, a second electrode column is fixed in a cage body of the resin cage and electrically connected with the electrode base, and an ion exchange tank outlet is formed in the bottom of the ion exchange tank. The device can improve the purification degree and accelerate the purification efficiency.

divalent metal ion salts, such as calcium salts, for reducing browning of reducing sugars and / or the formation of acrylamide during heating in the presence of an amine-containing food ingredient; sweetener compositions comprising a divalent metal ion salt and a reducing sugar; use of a divalent metal ion salt for reducing browning and the formation of acrylamide in a food product comprising a reducing sugar during heating in the presence of an additional amine-containing food ingredient; a method for reducing browning and the formation of acrylamide in a food product, the method comprising a) combining a reducing sugar with a divalent metal salt and at least one additional amine-containing food ingredient to provide an unheated food product, and b) optionally heating the unheated food product to provide a heated food product; and food products comprising a reducing sugar, a divalent metal ion salt, and the additional amine-containing food ingredient.

The present invention relates to a system and method for producing high-quality xylitol crystals. The system includes a conditioning tank, a heat exchanger, a decolorization tank, an ion exchange system, a microporous filter, a first evaporator, a first crystallization tank, a first centrifuge, a fluidized drying tank, a xylitol dissolving tank, a second evaporator, a second crystallization tank, a second centrifuge, a hot air drying tank, and a cold air fluidized bed, which are connected in sequence through a pipe, the first centrifuge is further connected to the conditioning tank through a pipe, the second centrifuge is further connected to the xylitol dissolving tank through a pipe, the conditioning tank is provided with a supply port for xylitol hydrogenation liquid, the xylitol dissolving tank is further provided with a water supply port for purified water, and the material from the cold air fluidized bed is the xylitol crystal product. The present invention adds water to the initially produced xylitol crystals at a certain ratio to dissolve them to obtain a higher purity xylitol solution, and recrystallizes the xylitol solution to produce xylitol crystals with a higher pH and better flavor.

The application discloses a device and method for preparing xylose by electric-thermal coupling dilute acid pretreatment of wood fiber, and belongs to the technical field of biomass resource utilization. The device comprises an electric-thermal reaction unit, and a time-varying magnetic field in a magnetic core in the electric-thermal reaction unit is used as an excitation source to spontaneously induce electric effect and thermal effect on reaction liquid in the reaction tube, so that electric-thermal synergic treatment is completed. The method comprises the following steps: mixing wood fiber raw materials with a dilute acid solution, and then performing electric-thermal pretreatment by using the device; and the electric-thermal coupling dilute acid pretreatment can remove a large amount of hemicellulose and a small amount of lignin in the wood fiber. The application reduces energy loss of traditional hydrothermal treatment, pretreats the wood fiber by means of electric effect, reduces pretreatment temperature, and avoids requirements on equipment or devices under a high-temperature and high-pressure environment.

The invention relates to a method and an apparatus for producing a soluble carbohydrate containing fraction (10), in which lignocellulose material (3) formed by treating plant based raw material (1) is conducted into a separation stage (4). The method comprises at least one solid-liquid separation stage (4) for separating a soluble carbohydrate containing fraction (10) and / or a washing filtrate (12) from lignocellulose material (3), and at least a part of the soluble carbohydrate containing fraction (10) and / or the washing filtrate (12) is recirculated to the lignocellulose material (3) for increasing concentration of the soluble carbohydrate containing fraction, and solids (11) and at least a part of the soluble carbohydrate containing fraction (10) are supplied out from the separation stage. Further, the invention relates to the soluble carbohydrate containing fraction and the solid fraction, and their uses.

The present invention relates to a method for preparing a mixture of indigestible α-glucans from a substrate rich in oligosaccharides having a degree of polymerization (DP) of 4.

The present disclosure relates to microorganisms useful for the biosynthesis of psicose. Methods for producing the disclosed microorganisms and methods for producing psicose are also provided. TIFF2025530206000101.tif93138

The present invention relates to the technical field of orange brown sugar production, and discloses an extraction filtration apparatus for orange brown sugar production, the extraction filtration apparatus comprises a frame, and a stirring tank and a stirring member arranged on the frame, the stirring member comprises a stirring assembly and a circulation assembly, the bottom of the stirring tank is provided with an output port, and the wall of the stirring tank is provided with a side mounting port along the radial direction; the circulating assembly comprises centrifugal pumps arranged at the openings of the output ports and liquid outlet units arranged in the side mounting ports, and a plurality of liquid outlet ends of the centrifugal pumps are arranged in the circumferential direction of the centrifugal pumps in an array mode; the number of the liquid outlet ends of the centrifugal pump is consistent with that of the liquid outlet units, the centrifugal pump and the liquid outlet units are connected through circulating pipelines, liquid discharging pipelines are arranged between the multiple circulating pipelines, connecting valve sets are arranged at the joints of the liquid discharging pipelines and the circulating pipelines, and the multiple connecting valve sets are correspondingly arranged.

The application discloses a treatment method of filter mud generated by a carbonization method for sugar production, and belongs to the technical field of food processing.The method is as follows: 1, sugar washing: a, five water tanks are arranged in sequence and connected, and the five water tanks are respectively filled with clean water, first water, second water, third water and fourth water; b, the cleaning method is that the filter mud is cleaned four times; c, the amount of water for washing each water tank is 1-4 times the mass of the filter mud; and d, the concentration of water for washing each water tank is accumulated and increased after each time of cleaning the filter mud, and is stable; 2, sugar extraction: the concentrated water after the fourth water washing is concentrated, a, pretreatment, b, membrane concentration; c, evaporation; and d, sugar syrup returns to a sugar workshop; 3, calcium oxide and carbon dioxide circulation; 4, waste heat recovery; 5, water circulation; and 6, water washing water supplementing.The beneficial effects are as follows: the existing filter mud for sugar production is treated as waste and entrusted to environmental protection, resources are wasted, a large amount of processing fee needs to be paid for entrusting, the filter mud is directly recycled in the sugar production process through the treatment method, and 100% resource utilization is achieved, and a large amount of cost is saved for sugar production.

The invention provides a production method of xylose and xylitol, and the production method of xylose comprises the following steps: preparation of a decolorized sugar solution: sequentially performing impurity removal, hydrolysis, neutralization filtration, first ion exchange, first concentration and activated carbon decoloration on corncobs to obtain the decolorized sugar solution; ion exchange liquid preparation: carrying out secondary ion exchange on the decolored sugar liquid to obtain the ion exchange liquid; preparing effluent: carrying out particle carbon adsorption on the ion exchange liquid at a certain flow rate to obtain the effluent; preparing a concentrated sugar solution, namely concentrating the effluent for the second time to obtain the concentrated sugar solution; and preparing a crystallization raw material: filtering the concentrated sugar solution, and concentrating for the third time to obtain the crystallization raw material. The xylose production process is improved, crystallization inhibitors are reduced, stickers are reduced, the cleanliness of feed liquid before crystallization is improved, and the replacement frequency of a filter element during precise filtration is reduced. The invention also provides a method for preparing xylitol from xylose.

The invention relates to an enzymatic process for preparing a composition rich in maltotetraose.