388 results about "Starch granule" patented technology

Compositions and methods for manufacturing sheets having a starch-bound matrix reinforced with fibers and optionally including an inorganic mineral filler. Suitable mixtures for forming the sheets are prepared by mixing together water, unmodified and ungelatinized starch granules, an auxiliary water-dispersible organic polymer, fibers, and optionally an inorganic mineral filler in the correct proportions to form a sheet having desired properties. The mixtures are formed into sheets by passing them between one or more sets of heated rollers to form green sheets. The heated rollers cause the auxiliary polymer to form a skin on the outer surfaces of the sheet that prevents the starch granules from causing the sheet to adhere to the rollers upon gelation of the starch. The green sheets are passed between heated rollers to gelatinize the starch granules, and then to dry the sheet by removing a substantial portion of the water by evaporation. The starch and auxiliary polymer form the binding matrix of the sheets with the fibers and optional inorganic filler dispersed throughout the binding matrix. The starch-bound sheets can be cut, rolled, pressed, scored, perforated, folded, and glued to fashion articles from the sheets much like paper or paperboard. The sheets are particularly useful in the mass production of containers, such as food and beverage containers.

The invention provides a novel starch branching enzyme that is bound to A-type starch granules in wheat, barley, rye or triticale. The enzyme is not substantially associated with B-type starch granules. A cDNA sequence encoding an isoform of the enzyme has been isolated from the wheat cultivar Fielder and deduced amino acid sequence has been determined.

The invention discloses a macroporous and microporous hybrid starch granule and a preparation method and an application thereof; wherein, the method comprises the following steps: mixing the macroporous starch with pore diameter ranging from 0.5umm to 1.5umm with microporous starch with pore diameter ranging from 6A degree to 6.5 A degree according to the weight proportion of 0.5-4;1; then wetting, microwave drying, crashing and sifting are carried out on the mixture, thus obtaining the hybrid starch granule; the additive is superior to single modified cornstarch granule (YSQ) or beta- cyclodextrin (HH) in terms of absorption property; dualistic or ternary composite filter prepared by adding the additive to a filter element of a cigarette filter can effectively reduce delivery volume of tar, phenol, hydrocyanic acid and carbon monoxide in smoke gas and improve organoleptic quality of the cigarette, effectively improve sensory comfort of the cigarette, enhance intensity of cigarette aroma, thus enjoying good application prospect.

The invention discloses modified starch granules, the preparation method and the application thereof. The preparation method comprises the following steps: stirring starch and acetic buffer solution uniformly, adding saccharifying enzyme for enzymolysis reaction, adding sodium hydroxide solution to stop the reaction, centrifugally separating to obtain paste-shape porous starch, microwave drying, pulverizing and sieving to obtain the desired modified starch granule. The modified starch granule is superior to active carbon in adsorption performance, and can be added into the filter core of a cigarette filter to prepare a binary or ternary filter, which can effectively reduce the delivery amount of tar and carbon monoxide in the smoke, improve the cigarette sense quality, effectively improve the cigarette sense comfort and improve the centralization degree of the cigarette smoke. The modified starch granule has good application prospects.

A process for producing parenterally administrable microparticles, in which an at least 20% by weight aqueous solution of purified amylopectin-based starch of reduced molecular weight is prepared, the solution is combined with biologically active substance, an emulsion of starch droplets is formed in an outer phase of polymer solution, the starch droplets are made to gel, and the gelled starch particles are dried. A release-controlling shell is optionally also applied to the particles. Microparticles which essentially consist of said starch, have an amino acid content of less than 50 mug and have no covalent chemical cross-linking.

A process for producing parenterally administrable microparticles, in which an at least 20% by weight aqueous solution of purified amylopectin-based starch of reduced molecular weight is prepared, the solution is combined with biologically active substance, an emulsion of starch droplets is formed in an outer phase of polymer solution, the starch droplets are made to gel, and the gelled starch particles are dried. A release-controlling shell is optionally also applied to the particles. Microparticles which essentially consist of said starch, have an amino acid content of less than 50 mug and have no covalent chemical cross-linking.

Production of malt is carried out by immersing for wheat grain, germinating and drying. It can supply sufficient hydrolase for saccharification to decompose protein into soluble nitrogen; it can supply alpha-amino-nitrogen and dissolve albuminous cell wall to degrade starch grain. It's controllable, has better physical-bio-chemical reaction and quality.

A novel filler treatment comprising the preparation of swollen starch-latex compositions, prepared in the presence or absence of co-additives, and the addition of the said composition to a filler suspension, has been developed. Use of the treated filler during papermaking improves filler retention and produces filled papers where addition of the filler has only a minimal negative effect on strength properties. The swollen starch-latex compositions can be prepared in a batch or jet cooker, or by mixing with hot water under controlled conditions (i.e., temperature, pH, mixing, mixing time) in order to make the starch granules swell sufficiently to improve their properties as a filler additive but avoiding excess swelling leading to their rupture. The swollen starch-latex composition is then rapidly mixed with the filler slurry, preferably in a static mixer, and added to the papermaking furnish at a point prior to the headbox of the paper machine. The starch-latex composition can be used with wood-free or wood-containing furnishes. The treated filler is easily retained in the web during papermaking, improves drainage, and gives sheets having good formation. Sheets made with the treated fillers have higher bonding and tensile strengths than sheets produced using filler treated with either swollen starch alone or latex alone. Retention and drainage are further improved when conventional retention aid chemicals are added to the furnish containing the treated filler. The use of swollen starch-latex compositions could allow the papermaker to increase the filler content of the paper without sacrificing dry strength properties or increasing the amount, and hence the cost, of the retention aid added. The combination of swollen starch and latex could be used as furnish additives in the manufacture of both filled grades and grades that contain no filler such as sack papers and paperboard products.

The invention belongs to the technical field of alcohol production, in particular relates to a technology for coupling the liquification process of corn alcohol and the concentration process of vinasse clear liquid. After being processed by the operations of pre-liquification and size-mixing, corn flour of the invention is sprayed and liquefied at the temperature from 105 to 135 DEG C and under the pressure from 0.1 to 0.15 MPa; starch granules are completely fractured, the gelatinization rate can reach 90 percent, and the high-temperature liquification is contributes to the increase of concentration of materials, thereby enabling the alcohol content of fermented mature mash to be improved to 14 percent (V/V); the liquefaction process and the concentration process of clear liquid are coupled, and indirect steam produced by the liquification process is used as a thermal source for the concentration process of clear liquid, thereby saving a great amount of external steam, evaporating and concentrating more clear liquid, contributing to the increase of recovery ratio of DDGS protein feed of each ton of alcohol; and vacuum equipment for the concentration process is utilized for lowering the temperature of the liquefied mash, and compared with the traditional mode of adopting a spiral plate for cooling, more cooling water can be saved.

The present invention relates to a particle stabilized emulsion or foam comprising at least two phases and solid particles, wherein said solid particles are starch granules and said starch granules or a portion thereof are situated at the interface between the two phases providing the particle stabilized emulsion or foam. The invention further relates to the use of said particle stabilized emulsion or foam for encapsulation of substances chosen from biopharmaceuticals, proteins, probiotics, living cells, enzymes and antibodies, sensitive food ingredients, vitamins, and lipids in food products, cosmetic products, skin creams, and pharmaceutical formulations.

The invention discloses a preparation method of anthocyanin emulsion with high embedding rate. The method comprises the following steps: carrying out esterification modification on small particle sizestarch particles with average particle size of 1 to 5 mum by using octenyl succinic anhydride to obtain modified small particle size starch particles with the substitution degree of 0.028 to 0.100; respectively dissolving an anthocyanin extract and a lipophilic emulsifier into water and oil, mixing and carrying out high-speed shearing to obtain W/O emulsion; then uniformly dispersing the modifiedsmall particle size starch particles into distilled water according to mass fraction of 1 to 8 percent (w/w), mixing a mixture with the W/O emulsion and carrying out high-speed shearing to obtain loaded anthocyanins emulsion. The anthocyanin emulsion prepared by the method disclosed by the invention has high embedding rate, simple technology, low oil content, and capability of being applied to the fields of food and beverage, cosmetic water emulsion and the like.

The invention relates to a method for preparing a micro nano starch granules emulsifier and an application thereof, which belongs to the technical field of an emulsifier or a foam stabilizer. According to the invention, the product degrades raw starch by acid to obtain the micro nano starch granules, the average size of the micro nano starch granules is less than 1 mum. The micro nano starch granules can be used as the emulsifier to prepare an emulsion with high stabilization, especially prepare food and a cosmetic emulsifier.

A rapidly-hydratable oxidized resistant starch having a cold-water hydration at least 20% greater than the resistant starch before oxidation, makeable by oxidation with an oxidizing agent selected from the group consisting of periodate, chromic acid, permanganate, nitrogen dioxide, and alkali metal hypochlorites. The starch may be made by a process for preparing a rapidly-hydratable resistant starch comprising the steps of swelling starch granules in the presence of alkali and/or heat, dispersing at least one cross-linking agent, mixing said dispersion, adding an oxidizing agent to said dispersion, and agitating said dispersion.

Functional starch powder of 400% or more water retention capacity, 5 hr or more collapse time and 200 g or more gel indentation load. This functional starch powder is produced through the step of heating a starch raw material in the presence of water at 60 to 150° C. so as to swell starch particles of the starch raw material and the subsequent step of drying the thus swollen starch particles so as to obtain a powder mixture comprising starch particles and, lying in the exterior thereof, amylose and amylopectin.

The invention provides a processing technology of a lotus seed juice, aiming to solve the problem that layering and precipitation are prone to occur in lotus seed drinks. In the invention, fresh lotus seeds or quick freezing lotus seeds are washed or unfreezed and then ground into thick liquid and filtered to obtain undiluted lotus seed juice; then carrying out gelatinization in combination with ultrasonic treatment; blending, homogenizing, canning, sterilizing and cooling according to ordinary drink processing technology to obtain lotus seed juice product. In the invention, gelatinization is adopted in combination with ultrasonic technology for processing lotus seed undiluted juice, under the collective action of thermal motion and ultrasonic waves, in the lotus seed juice, starch granules degradation and starch molecule dissolving out are accelerated and dissolved out long chain starch molecules are degraded to a certain degree to form micromolecules, thus effectively preventing lotus seed starch macromolecules from aging in the process storing lotus seed juice drink and preventing layering and precipitation of the louts seed juice drink, lengthening product shelf life; in addition, in the processing technology, no high requirements are imposed on equipment, operability is good, and aging of high starchiness drinks such as the lotus seed juice can be effectively solved, therefore the processing technology is suitable for industrialized mass production of the lotus seed juice.