8 results about "Granular starch" patented technology

This invention relates to granules of microcrystalline mannitol and granular starch having a water activity of 0.3 or less. This invention also relates to a process for obtaining the same. This invention also relates to the use of such granules for formulating or stabilizing hygroscopic active ingredients such as probiotics.

The invention relates to methods of thermomechanical degradation of starch, which allow the use of starch that has not been subjected to any pretreatment. By controlling the conditions of the thermomechanical degradation, different starch extrudates can be obtained. For example, low-viscosity extruded starch (LVES) and thermoreversible gelling extruded starch (TRES) may be obtained by subjecting native granular starch and water to thermomechanical degradation. The optional addition of a starch-modifying agent leads to modified extruded starch (MOES). The invention also relates, inter alia, to compositions obtainable by the methods of the invention; products comprising said compositions; and various applications of said compositions.

A process for preparing starch with reduced impurities is described. The refined starch is obtained by a process that includes the step of providing a slurry containing granular starch and impurities, with a pH of 5.0 to 11.0. The impurities are then at least partially removed from the slurry by washing with water in a series of nozzle centrifuges, the slurry is added to the first centrifuge of the series, the washing water is added to the last centrifuge of the series, and each nozzle centrifuge separates the supplied slurry flow into a light fraction containing the washing water and the fractions removed by washing the impurities, and a heavy fraction containing the starch and the fractions not removed by washing the impurities. The slurry is dried after washing and optionally milled to obtain starch.

Coagglomerates of crystalline mannitol and granular starch have a laser mean volume diameter D4,3 of between 60 and 500 μm, a ratio of mannitol / starch is between 99.5 / 0.5 and 50 / 50, and the mannitol is both in the alpha and beta crystalline forms.

A method for preparing a highly branched starch of different crystal forms by using a glycogen branching enzyme. The method comprises: (1) dispersing starch in a buffer to obtain starch milk; (2) performing a sub-gelatinization pretreatment on the starch milk, and then adding a glycogen branching enzyme for enzymolysis; and (3) after the enzymolysis is completed, performing ethanol precipitation, washing, freeze-drying, grinding and sieving to obtain branched starch. By means of omitting the conventional modification step of high-temperature pre-gelatinization followed by cooling and enzyme addition, the glycogen branching enzyme is directly added at 60°C to process granular starch with different crystal form structures, which maintains the intact granular morphology of the starch, thereby achieving the effects of simultaneous enzymolysis and starch granule swelling.

To provide a function-deficient granular starch synthase gene and a Fagopyrum plant using the same.SOLUTION: A granular starch synthase gene highly expressed in the endosperm of a Fagopyrum plant is identified from granular starch synthase genes identified from the decoding result of the genome sequence of the Fagopyrum plant, and a function-deficient granular starch synthase gene produced by deleting the function of the identified granular starch synthase gene by mutation induction and a Fagopyrum plant which is a double-recessive homozygote having the function-deficient granular starch synthase gene homozygously are produced.SELECTED DRAWING: Figure 5

The utility model discloses a drying device for modified starch production, which comprises a fixed box fixedly connected to the top of a material inlet of a drying machine, two symmetrical limiting sliding grooves are formed in the surface of an inner cavity of the fixed box, the limiting sliding grooves are T-shaped grooves, inner cavities of the limiting sliding grooves are connected with limiting sliding strips in a sliding mode, and the limiting sliding strips are connected with the limiting sliding grooves in a sliding mode. A fixing frame is arranged in an inner cavity of the fixing box and fixedly connected with the limiting sliding strips. Granular starch is conveyed to the inner cavity of the fixing box, the output end of the air cylinder drives the connecting rod to move, the connecting rod drives the fixing frame to move, the fixing frame drives the limiting frame to move in the inner cavity of the fixing box, and then the limiting frame drives the screen to move in the inner cavity of the fixing box. Therefore, the granular starch can be uniformly fed into the drying machine for drying through the feeding structure, so that the purposes of preventing the feeding hole from being blocked and improving the working efficiency are achieved.

A method for preparing an inhibited starch, wherein it comprises the steps of a) providing a slurry containing a granular starch obtained from a starch containing raw material, b) alkalizing the slurry by adding ammonia or by adding one or more compounds having the ability to release or produce ammonia in the slurry, c) adjusting the p H of the slurry to a value above 10.0, preferably up to 12.0, and d) adding at least one oxidant to the slurry for a reaction with said ammonia; or wherein steps b) and c) are replaced with the step of alkalizing the slurry directly to a p H between 0.0 and 12.0, and the step of adding chloramine or dichloramine to the slurry, and wherein step d) is omitted; or wherein step c) is replaced with the step of adjusting the p H of the slurry to a value of between 7.0 and 10.0, and wherein step d) is followed by a step of adjusting the p H of the slurry to a value above 10.0, preferably up to 12.0, is disclosed, as well as an inhibited starch made with said method, use of the inhibited starch as an 1 ingredient in a food product, and a food product containing said inhibited starch.