229results about "Sugar crystallisation" patented technology

The present invention relates to a process for the production of xylose and dissolving pulp from xylan-containing biomass, such as hardwood. The invention is based on prehydrolysis of the xylan-containing biomass with SO₂ in specified conditions, followed by chromatographic fractionation, nanofiltration or precipitation crystallization of the xylose-containing prehydrolyzate to obtain a xylose product having a xylose content of at least 55% on DS. The dissolving pulp obtained from the process can be used for example for the production of viscose.

An acid recovery system used in a hydrolysis operation includes a chromatographic unit to provide initial separation of sugar and acid. The sugar product provided by the chromatographic unit is processed to produce higher value products, such as ethanol. The remaining acid is contaminated by sugar. A nanofiltration unit containing a nanofilter membrane processes the sugar contaminated acid. The acid is allowed to permeate across the nanofilter membrane while sugar is rejected. The permeate is provided to a conventional acid recovery system and recycled for use in the hydrolysis process.

The present invention is directed to a method comprising a multistep process for recovering one or more monosaccharides from a solution containing at least two monosaccharides selected from the group consisting of rhamnose, arabinose, xylose and mixtures thereof by using chromatographic separation comprising at least one step, where a weak acid cation exchange resin is used for the chromatographic separation.

A process for preparing crystalline sugar by providing a solution of a solvent and sugar, exposing the solution to a magentic field having a strength which is sufficient to impart improvements in the processing of the sugar or the properties of the resulting crystalline sugar product, and providing conditions suitable for crystallization to obtain a substantially crystalline sugar product. The magnetic field strength is sufficient to influence at least one of morphology, size, nucleation rate or, crystallinity of the crystalline sugar product.

The invention discloses an industrialized production method of primitive brown sugar. The method comprises the steps of with cane sugar factory mixed juice as a raw material, adding lime milk to regulate the pH value to 5.8-6.6; sieving and filtering; heating, floating and removing floating slag; removing impurities through microfiltration; evaporating and concentrating to obtain syrup with the concentration of 60-65-degree Bx; boiling sugar at the temperature of 125-130 DEG C at normal pressure to obtain syrup with the concentration of 95-98-degree Bx; sanding and forming to realize industrialized production of the primitive brown sugar. When used for producing brown sugar, the industrialized production method disclosed by the invention is safe and reliable in production process, high in mechanization degree, capable of realizing large-scale production of the primitive brown sugar and stable in product quality.

The invention discloses a technology for refining saccharose. The technology comprises specific steps of juicing, pretreating, micro-filtering by a membrane, pre-concentrating, decoloring through ion exchange, desalting, evaporating and concentrating through MVR (mechanical vapor recompression), crystallizing, separating through centrifuging, and drying so as to obtain the saccharose crystal. The technology has the advantages that ceramic microfiltration substitutes for sedimentation by sheet frames and lime, so that the step of ultrafiltration is saved; due to concentration by the membrane, the evaporation capacity of evaporation and concentration equipment is reduced, the energy consumption is lowered, and part of inorganic salt is removed; the technology of decoloring and removing impurities through ion exchange substitutes for the technology of stoving, so that the problem of residual sulphur in the saccharose is solved, and the quality of the product is improved; the manner of ion exchange can effectively remove the salt in cane juice; energy consumption is effectively lowered due to the MVR; by adopting the membrane concentration and separation and ion exchange equipment, the floor space of the equipment is reduced, and investment of capital construction is lowered.

A process for the preparation of white and brown sugar from raw diffuser beet juice. The juice is purified by membrane filtration at 70-95° C. on a filter having a molecular weight cut-off between 2,000 and 500,000 Dalton and evaporated to a dry matter content of between 60 and 80% by weight under vacuum to a thick juice. A conventional multi-step evaporative crystallisation of the thick juice gives crops of white and brown sugar crystals. The brown sugar obtained have valuable organoleptic properties.

Crystalline alpha-lactose monohydrate is recovered frown a viscous lactose-containing aqueous liquid by subjecting said liquid to simultaneous heating, removal of evaporated vapor and mechanical agitation at high shear rate to provide a crystallization promoting decrease of the viscosity of the liquid with crystals formed and suspended therein to progressively concentrate the agitated liquid and simultaneously crystallize lactose therefrom. Subsequent cooling, drying, and disintegration yield particulate alpha-lactose monohydrate.

An originally ecological black sugar processing method comprises the following steps: after sugarcane is squeezed for extracting juice, carrying out rough filtration so as to obtain sugarcane juice; heating the sugarcane juice to 90-100 DEG C and keeping heat for 1-3 min so as to obtain heated sugarcane juice; conveying the heated sugarcane juice to a multistage ceramic membrane ultrafiltration device for ultrafiltration clarification so as to obtain clarified sugarcane juice; concentrating the clarified sugarcane juice into syrup; concentrating the syrup through a jacketed iron pot so as to obtain decocted massecuite; graining, cooling and forming so as to obtain originally ecological black sugar. The originally ecological black sugar prepared through the method provided by the invention is small in grain, brown-dark brown and natural in color, contains fewer impurities, has a natural caramel charcoal burning fragrance, is rich in flavor, and fine and smooth in mouthfeel, retains the nutritional ingredients of sugarcane to the greatest extent, and has a high nutritional value; the turbidity is less than 0.5 NTU after the black sugar is dissolved to 11.5 degrees Bx, so that the problem that precipitates occur after the black sugar is dissolved for a long time is solved.

The present process is directed to a method of crystallizing the lactose in milkfat which comprises (a) mixing the milk powder with water in an amount sufficient to initiate crystallization when subjected to shearing and heating, and (b) subjecting the product of (a) to shearing and heating under conditions effective to crystallize the lactose, said heating being conducted at a temperature greater than the glass transition temperature of the lactose and below the temperature at which the product will have a burnt flavor.

An object of the present invention is to provide a method for producing sugar and ethanol from sugar cane, in which almost all of energy to be consumed in the production processes of the sugar, the ethanol and the like can be supplied by the energy obtained by burning a pressed residue of sugar cane, yet without decreasing the sugar amount to be produced. The present invention provides a method for producing sugar and a useful material from sugar cane, comprising the steps of: (a) producing from sugar cane a pressed juice and pressed residue of sugar cane; (b) producing sugar and blackstrap molasses from said pressed juice; and (c) generating an energy and a useful material by using said pressed juice, said blackstrap molasses and said pressed residue of sugar cane as source materials that have been obtained from said steps (a) and (b), wherein said sugar cane contains an amount of 15% or greater by mass of fiber component in its cane stem region and provides a dry matter yield amount per unit area of 40 t/ha/year or higher; and 90% or more of energy required for all of the steps of said production method is obtained from energy generated by burning said pressed residue of sugar cane.

The invention relates to a preparation process of a co-crystal made of sugar and a natural sweetener and, eventually, another aggregate and with said product. The process is further related with co-crystallizing sucrose and a natural sweetener in a vacuum pan under controlled pressure and temperature conditions and separating the crystal from the sugar juice.

At the end of the process, the co-crystallized sub-products are used for producing a low calorie content liquid sweetener such that in a high percentage all the stock material is used.

[Summary]

[Problems] To provide extremely-spherical-three-dimensional-shaped particles of crystalline mannitol containing large hollows and gaps inside.

[Solution] Spherical particles of crystalline mannitol made by spray drying, extremely spherical (having an aspect ratio of 1.0 to 1.2), high oil absorption rates according to test method A, wherein powder has a mean particle diameter of 15 to 165 μm, a loose bulk density of 0.35 to 0.60 and an angle of repose of 30 to 50 degrees, and has a hardness of 7 to 20 kgf, when directly compressed.

The invention provides a production process and a production device of golden sugar. The production process comprises the following steps: pressing sugarcane or beets to obtain cane sugar juice; pre-filtering the cane sugar juice through a coarse filter and feeding the pre-filtered crane sugar juice into a microfiltration membrane for filtering to obtain clear cane sugar juice; pre-concentrating the clear cane sugar juice to obtain a pre-concentrated solution; feeding the pre-concentrated solution into ion exchange resin for desalting to obtain a permeation solution; feeding the permeation solution into an evaporator for concentrating to obtain cane sugar concentrated liquid; heating the cane sugar concentrated liquid to be oversaturated, adding crystal seeds, naturally cooling and crystallizing, and centrifuging the obtained crystals to obtain golden sugar crystals; drying the golden sugar crystals to obtain a finished product of the golden sugar. The production device comprises the coarse filter, a microfiltration membrane filter, a nanofiltration membrane filter, an anion exchange resin bed, a cation exchange resin bed and the evaporator which are connected in sequence. The production method provided by the invention is capable of continuously producing high-quality golden sugar, the chromatic value of the obtained product is 800-3,000, the desalting rate is high, and the yield is high.

A Method for producing triploid corn seeds and plants is described. The method comprises combining two parent inbreds of different ploidy levels, wherein one parent inbred is a tetraploid (4N) and the other parent is a diploid (2N) so as to produce a triploid hybrid corn seed; and cultivating the triploid hybrid corn seed to form a triploid corn plant. Usage of triploid corn plants as an economic source of sugar and ethanol is described, as is the production of molasses, rum and fodder from plant material of the low sterility triploid corn plants.

White granulated sugar and high fructose syrup is dissolved in water, filtered to eliminate insoluble matter, and processed in continuous vacuum film sugar cooking apparatus to eliminate water to obtain sugar paste, which is formed in monocrystal mold to form monocrystal sugar. The said process is short, has no food additive added and high yield, and the monocrystal sugar product is pure in taste, transparent and homogeneous in size.

A process for producing a starch comprises treating a feed starch that comprises amylopectin with glucanotransferase to produce a chain-extended starch, treating the chain-extended starch with a debranching enzyme to produce a starch product that comprises amylose fragments, crystallizing at least part of the starch product, heating the starch product in the presence of moisture, treating the starch product with alpha-amylase, and washing the starch product to remove at least some non-crystallized starch. The product of this process has a relatively high total dietary fiber content.

A process is proposed for crystallizing, by progressively cooling, in multiple stages arranged in series in a crystallization vessel (10), a descending continuous flow of a saturated sucrose solution at a temperature from about 78° to about 120° C., each stage maintaining the sucrose solution being crystallized at a predetermined temperature, until reaching a temperature from about 25 to 40° C., obtaining substantially pure sucrose crystals. A suspension containing sugar seeds is introduced in the crystallizing equipment, in the first stage, jointly with the saturated sucrose solution of 1.05-1.15. In another embodiment of the invention, the saturated solution is fed and its temperature is controlled, already in the first stage of the vessel (10), to obtain a supersaturation between 1.05 and 1.15, inducing the formation of small crystals used as crystallization seeds.