62results about "Invert sugar production" patented technology

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 invention relates to the use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates. In the invention the hydrophilic/hydrophobic interaction of carbohydrates, sugars and sugar alcohols with the weakly acid cation exchange resin is utilized. The weakly acid cation exchange resin is used for separation of hydrophobic saccharides, such as deoxy, methyl and anhydrosugars and anhydrosugaralcohols from more hydrophilic saccharides.

The present invention relates to glucose production, and is one whole membrane method of producing high purity crystalline glucose in relatively low cost. The method includes the following steps: liquefying starch to obtain starch liquid with DE value of 14-25 %; cooling and adding compound amylase to enzymolyze into glucose liquid; microfiltering to obtain dialysate and filter residue; drying the filter residue to produce feed; ultrafiltering the dialysate to obtain ultrafiltrate and ultrafiltered concentrated liquid; nanofiltering the ultrafiltrate to obtain nanofiltrate and nanofiltered concentrated liquid; concentrating the nanofiltrate to obtain concentrated glucose liquid; and spray drying to obtain crystalline glucose product. The nanofiltrate has DX value higher than 99.5 % and the method has no crystallization step and 10 % raised glucose yield. The method can recover starch and polysaccharide and is environment friendly.

The invention for the technology of using cornstarch to product crystallization diabetin relates to the field of carbohydrate manufacturing technique. This technique, using corn as material, through the procedures of compression, isomerization chromatographic fractionation, evaporation and crystallization and so on, by controlling the parameters in the steps of crystallization and so on, does not only resolve the defect of the high difficulty of diabetin crystallization, but also reduce the energy consumption of specific product.

The invention relates to a method and catalyst for hydrolyzing saccharide compounds. An acidic material with densely distributed strong/weak-acidity groups is used in the process of hydrolyzing the saccharide compounds into monosaccharides, thereby solving the problems of lower monosaccharide yield and overhigh catalyst cost. By adopting the catalyst provided by the invention, the hydrolysis conversion rate of the saccharides can reach 90% above, and the oligosaccharide hydrolysate selectivity can reach 90% above. The catalyst is easy for separation and can be recycled, and has the characteristics of wide application range for saccharide compounds and the like.

The invention provides a process for the preparation of monoethylene glycol from sucrose comprising the steps of: i) hydrolysing sucrose to form a reaction product stream comprising glucose and fructose; ii) separating the reaction product stream comprising glucose and fructose into a fructose or fructose derivative rich stream and a glucose rich stream; and iii) contacting the glucose rich stream with hydrogen in a reactor in the presence of a solvent and a catalyst system with catalytic hydrogenation abilities to produce a product stream comprising monoethylene glycol.

The invention provides a preparation method of silica gel column supported meso-porous biochar solid sulfonic acid (SiO2-BC-SO3H) from wood fiber biomass, and a method using the silica gel column supported meso-porous biochar solid sulfonic acid to catalyze sucrose hydrolysis for preparing glucose. The preparation method of the SiO2-BC-SO3H comprises the following steps: biomass heat carbonization or concentrated sulfuric acid dehydration carbonization, boiling water swelling, acidic silica sol intercalation, heating (350 DEG C) dehydration in nitrogen, and concentrated sulfuric acid sulfonation. The silica gel content of the SiO2-BC-SO3H prepared through the steps is about 15 wt%, the sulfonic group density is 0.9 mmol/g or above, and the SiO2-BC-SO3H has an interlayer meso-porous structure. The SiO2-BC-SO3H has better catalysis activity and better reusability than non-porous biochar solid sulfonic acid in the catalysis of the sucrose hydrolysis reaction.

The invention discloses a preparation process of liquid sugar. The preparation process comprises the following steps of (1) raw material preparation and treatment; (2) temperature rise concentration; (3) acid addition; (4) heat insulation conversion; (5) alkali addition for conversion stopping; (6) temperature reduction. Compared with the prior art, the preparation process of liquid sugar aims at an integral utilization technology of sugar production byproducts, uses a method of a weak acid hydrolysis method, and has the advantages that the reaction is mild; the content of reducing sugar can be conveniently controlled; the operation is simple and convenient; in addition, the generated syrup cannot easily precipitate; the state is stable; citric acid belongs to food grade additives, and the remained additives cannot be harm to the body.

The invention discloses a method for preparing industrial fructose with isomeric glucose by adopting a chemical catalysis method. The method comprises the following steps that 1, a glucose water solution is prepared, borax and sodium hydroxide are sequentially added into the glucose water solution, then magnesium-based solid base is added, and reaction is performed in the inert atmosphere; 2, reaction is completed, a solid base catalyst is recovered through solid-liquid separation, liquid is fed into an electroosmosis system, and glucose and a fructose complex are separated to obtain a fructose borate complex solution; 3, the fructose borate complex solution flows through boron specific resin to remove the borax and the sodium hydroxide, and a pure fructose product is obtained. By combining homogeneous-phase base catalysis and non-homogeneous-phase base catalysis, the method is suitable for higher substrate concentration, also improves the isomerization rate and fructose selectivity, utilizes the difference of the fructose complex and glucose to achieve their simple and efficient separation, provides possibility for large-scale development of fuel and chemicals based on an industrial fructose platform and has a good application prospect.

The invention relates to the technical field of the sugar industry, in particular to a method for producing mannitol and sorbitol through waste fructooligosaccharide liquid. The method comprises the following steps: after pretreating the waste production liquid, firstly, hydrolyzing the waste production liquid to hydrolyze sucrose in the waste production liquid into the invert sugar of 1/2 fructose and glucose; secondly, epimerizing glucose as a raw material so as to convert the glucose into mannose; finally, performing hydroconversion to obtain the mannitol, and converting the fructose and the glucose in the mixed liquid into the sorbitol and the mannitol under the action of hydrogenation, thus realizing the maximum recovery of the product. The method is simple in process steps, and adopts the waste production liquid as a raw material, so that the production cost is greatly reduced, the added value of a byproduct is improved, the environment is protected, and the production yield is improved. Therefore, the method is suitable for wide popularization and application.

The invention relates to a method for preparing medicinal invert sugar by sugar hydrolysis, which belongs to the technical field of preparation technology of medicaments and solves the problem that the invert sugar directly prepared by the sugar hydrolysis in the prior art cannot meet the medicinal standard. The method for preparing aqueous solution of medicinal invert sugar by directly hydrolyzing the sugar comprises the following steps of: adding 35 percent solution of concentrated hydrochloric acid into water for injection to adjust the pH value to a proper value; controlling a proper internal temperature and adding a proper amount of medicinal sugar to react for a certain time; and adding the injection water at the temperature of between 5 and 10 DEG C to rapidly reduce the temperature so as to obtain the aqueous solution of the medicinal invert sugar. The aqueous solution of the medicinal invert sugar prepared by the method can be used for preparing medicinal invert sugar injection and medicinal invert sugar electrolyte injection.

The invention relates to a preparation method of high fructose corn syrup. The preparation method comprises 1, taking starch as a raw material and orderly carrying out slurry mixing, liquefaction, saccharification, enzyme deactivation, coarse filtration, first ion exchange, first decolorizing filtration, first condensation, isomerization, second ion exchange, second decolorizing filtration and second condensation to obtain a high fructose corn syrup semi-finished product, 2, orderly carrying out chromatographic separation, third ionic exchange, third decolorizing filtration and third condensation on the high fructose corn syrup semi-finished product to obtain a high fructose corn syrup finished product, blending the returned material produced through chromatographic separation and a liquefied liquid to obtain a mixed liquefied liquid, putting the mixed liquefied liquid into a saccharification section, carrying out saccharification and orderly carrying out later processes to obtain a high fructose corn syrup finished product. The preparation method can effectively treat a returned material of a chromatographic separation section, improve returned material tank use efficiency, effectively utilize the returned material in production without influence on product quality, saves raw materials and reduces an enterprise cost.

The invention pertains to the technical field of transforming organic wastes into resources and hydro-thermal reaction, in particular to a method of hydro-thermally degrading agricultural wastes to produce reducing sugar. The invention directly utilizes eco-agricultural wastes as the raw materials and de-ionized water as the solvent and hydro-thermally degrades the agricultural wastes to produce reducing sugar within the temperature range from 250 to 400 DEG C and under the condition of certain reaction time in a special hydro-thermal reaction system. In addition, the invention achieves the control of reducing sugar yield by changing the temperature and the time and adding the additives.

A method for preparing a dedicated molecular sieve which can separate levulose from glucose by simulating a moving bed adopts the manufacturing technique of formation first and then exchange, and comprises the following steps: mixing a Y type molecular sieve with an adhesive to produce a seedball which is then subjected to formation; adding an acidproof adhesive during the process of formation; polishing after formation and meanwhile adding a surface coating; parching; baking; carrying out ion exchange or direct impregnation; and subjecting sorbent after undergoing ion exchange or direct impregnation to after-baking in order to obtain sorbent with good absorption property and excellent acid resistance. The substance produced by utilizing the invention is a molecular sieve which can be easily involved in ion exchange, has the advantages of high separation coefficient, excellent acid resistance, good stability, cheapness and long service life, and is used for separating levulose from glucose by simulating the moving bed. As the molecular sieve is stable in all indexes and can achieve the separation effects as required, the molecular sieve can replace resin.

The invention relates to the technical field of separation of fructo-oligosaccharide, and particularly discloses a chromatographic separation filler applied to fructo-oligosaccharide, a preparation process and a chromatographic separation device. The filler comprises the following components in parts by weight: cation exchange resin 2 and table salt. The preparation process of the chromatographic separation filler comprises the following steps: taking 20-26 parts of cation exchange resin, soaking the cation exchange resin in a hydrochloric acid aqueous solution, taking out the cation exchange resin, and performing washing with clear water until the cation exchange resin is neutral; putting the cleaned cation exchange resin into a high-speed centrifugal machine to be dewatered and dried, sieving dried cation exchange resin particles, and removing the sieved cation exchange resin particles; and uniformly mixing 2-5 parts of table salt with the cation exchange resin particles obtained in the step 2. The whole chromatographic separation filler applied to the fructo-oligosaccharide has an excellent separation effect on monosaccharide and disaccharide in the fructo-oligosaccharide, the production cost of the whole separation filler is low, the preparation method is simple, and the technical problem of chromatographic separation of fructo-oligosaccharide in China at present is effectively solved.

The invention relates to a method for preparing invert sugar by microwave reaction and special equipment thereof. The invention is characterized in that the method directly obtains invert sugar by thefollowing steps: adding a catalyzer to a sugar solution and then reacting under microwave irradiation in a flowing way to obtain the invert sugar. The method has the actual conditions: adopting a glass, plastic or stainless steel coiled tube as a microwave irradiation reaction tube for the solution to pass, wherein the tube diameter is 2-6cm, the wall thickness of the single tube is 3-8mm, the tube length is 80-150m, the microwave power is 1000-3000W, and the flow speed of the solution when passing the microwave irradiation reaction tube is controlled between 0.2 and 0.8m/s. Compared with theprior art, the invention has the advantages that the flow speed of the sugar solution in the reaction tube is controlled by adding a set of reaction tubes in a microwave reactor, so that the sugar solution can receive sufficient microwave irradiation in the reaction tube and can be quickly converted, thereby realizing the continuous production of the sugar solution. Moreover, the product conversion rate exceeds 95%, the product purity is high, and byproducts are few.

A method of producing a sugar -product from fruit, the method including the steps of : a) providing a fruit juice containing glucose and fructose; b) demineralizing and decolouring the fruit juice to obtain a clarified, demineralized fruit juice; c) concentrating the clarified, demineralized fruit juice to obtain a concentrated clarified, demineralized fruit juice; and d) separating the concentrated demineralized, clarified fruit juice by chromatography to obtain at least a glucose-enriched fraction and at least a fructose-enriched fraction,- the method including, after step d), a step e) of filtering the glucose-enriched fraction and fructose- enriched fraction on a carbon filter; and steps d) and e) being performed at a temperature of 50-70°C.