24 results about "Starch granule" patented technology

This invention discloses a clean modification process for yam starch with high slow-digestible starch content, belonging to the field of clean starch modification technology. It aims to solve the problems of existing modification processes relying on exogenous additives, high costs, and difficulty in balancing starch digestibility and stability. This invention uses fresh yam as raw material and obtains a co-precipitation system retaining endogenous mucoprotein through isoelectric point sedimentation. Based on this, vacuum alternating pulsed steam treatment is used, utilizing pressure difference and thermal effects to promote the migration of endogenous proteins at the starch particle interface and construct a stable composite structure. Subsequently, annealing is performed under high humidity conditions to induce ordered rearrangement of molecular chains. This process, without adding exogenous substances, precisely controls the starch structure, significantly increases the slow-digestible starch content, and improves the processing stability of the product. It has advantages such as being green and clean, highly safe, and highly functional.

A method of producing a plant-based beverage is disclosed. The method may comprise circulating a mixture including soaked groats, water, an enzyme to break down starch particles, in a container to undergo a hydrodynamic cavitation, to produce the mixture after the circulation as a plant-based uncentrifuged concentrate having a D90 particle size being less than about 600 microns. It has been determined that under certain embodiments, utilizing an associated holding temperature of about 50° C. to about 80° C., and an associated holding time of from about 5 minutes to about 40 minutes can result in improved product outcomes.

The utility model provides a kind of oil consumption production device, production device is an oil consumption cooking pot, and the oil consumption cooking pot is equipped with starch paste feeding dispersion mechanism;Starch paste feeding dispersion mechanism disperses starch paste into oyster sauce premix liquid quickly, which can avoid the unevenness of oyster sauce products, and also reduces the mixing time when fully gelatinized starch paste is put into oyster sauce premix liquid, causing starch particles to further absorb water and swell, increasing the probability of starch particle breakage, and further affecting the shelf life stability.

This invention discloses a microbial detection device for deep-processed chestnut products, belonging to the technical field of microbial detection devices for deep-processed products. It includes a frame, a crushing mechanism at the top of the frame, a mixing mechanism below the crushing mechanism, a three-way valve below the mixing mechanism, an overflow pipe and a clamp valve at the other two ports of the three-way valve, a sampling needle below the clamp valve, and a double-layer rotating sampling mechanism below the sampling needle, with a sample tube mounted on the double-layer rotating sampling mechanism. This invention utilizes tangential jetting at the throat of the Venturi tube to create a high-speed vortex, ensuring that starch particles remain suspended and guaranteeing sample representativeness. The integrated crushing and filtration, continuous homogenization, and the three-way overflow clamp valve work together to achieve precise matching of continuous flow and intermittent sampling for dispensing. The inner rotating drum is self-cleaning, the Venturi tube has no moving parts, and the clamp valve has a flexible hose contact design, combined with circulating cleaning, reducing cleaning difficulty and preventing cross-contamination.

This utility model relates to the technical field of starch processing equipment, specifically a starch washing device for starch production. It includes a fixed support first and a fixed support second, both fixedly mounted on the ground. The fixed support first and fixed support second are equipped with sand removal mechanisms for separating sand from starch slurry. One end of the sand removal mechanism is equipped with a conveying pipe for transporting the starch slurry, and the other end is equipped with a filtering mechanism for filtering sand from the starch slurry. In this utility model, through the sand washing mechanism, when the starch slurry is in the water guide tank, the difference in specific gravity between sand and starch particles causes the sand to automatically accumulate in the strip-shaped through-holes, while the starch particles continue to flow with the starch slurry, thereby removing most of the sand from the starch slurry. The filtering mechanism further filters the starch slurry after most of the sand has been removed, thus maximizing the removal of sand from the starch slurry.

The invention belongs to the technical field of oilfield chemistry, and relates to a gas reservoir crack mixed temporary plugging agent and a preparation method thereof. The temporary plugging agent is prepared from the following components in parts by mass: a water-soluble high-molecular polymer, heat-resistant starch, degradable fibers, a strength improver and water, the strength improver is montmorillonite powder wrapped by polyvinyl alcohol. The water-soluble high-molecular polymer is matched with the degradable fibers and the starch particles to be interwoven and connected to form a net-shaped structure, so that the pressure resistance is improved, and the temporary plugging effect is improved; according to the strength improving agent, montmorillonite powder wrapped by polyvinyl alcohol is added, in the process that the temporary plugging agent still flows downwards, the polyvinyl alcohol on the surface of the montmorillonite powder is melted along with decline and temperature rise, so that the montmorillonite powder leaks out and absorbs water again to swell, and the strength of the temporary plugging agent is improved. And montmorillonite powder wrapped by heat-resistant starch-degradable fiber-polyvinyl alcohol is cross-linked to form a rich three-dimensional system structure as a climbing skeleton, so that the temporary plugging agent can temporarily plug cracks at positions needing temporary plugging.

The application discloses a kind of double-enzyme modified starch with high freeze-thaw stability and its preparation method and application, for the serious problem of gel structure deterioration and water separation of starch-based frozen food caused by ice crystal damage in repeated freeze-thaw process, the method utilizes malt alpha-amylase and starch branching enzyme to catalyze different crystal form starch particles in sequence, and realizes the directional regulation of starch branching topological structure by the synergistic mediation of glycosidic bond reconstruction. First, the malt alpha-amylase hydrolyzes the starch particles moderately, and the long internal chain connected to the molecular cluster is cracked; then the starch branching enzyme cuts off the alpha-1,4 glycosidic bond, and connects the free malt oligosaccharide to the cluster-shaped molecular residue with alpha-1,6 glycosidic bond, thereby significantly increasing the branching degree of starch. The method disclosed in the application belongs to enzyme modification, and has the characteristics of green safety and simple operation, and has wide application prospect in frozen food, such as instant noodles and instant rice products.

A method of producing a plant-based beverage is disclosed. The method may comprise circulating a mixture including soaked groats, water, an enzyme to break down starch particles, in a container to undergo a hydrodynamic cavitation, to produce the mixture after the circulation as a plant-based uncentrifuged concentrate having a D90 particle size being less than about 600 microns. It has been determined that under certain embodiments, utilizing an associated holding temperature of about 50 °C to about 80 °C, and an associated holding time of from about 5 minutes to about 40 minutes can result in improved product outcomes.

This invention relates to the field of wood processing technology, specifically a method for processing and preparing wood materials. The invention first involves eliminating permeability barriers in the wood material by removing starch granules from the cell cavities to form continuous permeation channels, followed by drying to a moisture content of 6%–12%. A eutectic solvent is prepared by mixing choline chloride with an organic acid hydrogen bond donor at a molar ratio of 1:2. The eutectic solvent is then impregnated into the wood material using a vacuum negative pressure impregnation process, and held at 65–75°C for 2–4 hours to increase the content of active hydroxyl groups in lignin while ensuring the loss rate does not exceed 8%. A bio-based crosslinking agent is directly added during the impregnation process, resulting in the in-situ formation of a crosslinked network within the cell wall through esterification. After hot-press curing and gradient drying, the eutectic solvent is recovered and recycled. This invention achieves a synergistic improvement in the mechanical properties, dimensional stability, and durability of the wood material, with formaldehyde emissions meeting the requirements of GB18580 standard, and a eutectic solvent recovery rate of not less than 85%.

This invention discloses a kiln for coarse grain processing, belonging to the field of kiln construction technology. The kiln includes: a kiln body, a water supply unit, a drainage unit, an S-shaped water trap, a water storage tank, a wastewater tank, an automatic sedimentation and separation module, and an intelligent drainage control unit. The water supply unit supplies cleaning water to the water storage tank; the drainage unit collects water from inside the kiln and the roof through floor drains; the wastewater tank collects processing wastewater; the automatic sedimentation and separation module is located between the wastewater tank and the drainage unit to separate starch particles; and the intelligent drainage control unit automatically controls the opening and closing of the drainage valve based on the water level in the wastewater tank and the drainage flow rate. This invention, through its design separating clean water and wastewater, automatic sedimentation and separation, and intelligent control, solves the problems of easy clogging, strong odor, and low automation in traditional coarse grain processing kilns, achieving effective treatment and discharge of coarse grain processing wastewater.

Excellent dry conditioning benefits are provided by a hair conditioner composition comprising: A) 0.01 to 5 wt %, by weight of the total composition, of a blend comprising i) particles of boiling resistant starch, having a Dv(50) particle size of from 1 to 12 microns; and ii) a hydrophobic non-silicone oil; in a weight ratio of starch to oil of from 0.5:1 to 1:0.5; B) 0.01 to 5 wt % of an emulsified non-silicone oil; wherein A) and B) are dispersed within: C) a conditioning gel phase comprising a cationic surfactant and a fatty material; and wherein the conditioner is free from silicone.

This invention discloses a highly hydrophobic and anti-caking starch and its preparation process, belonging to the field of starch preparation technology. It is prepared using the following raw materials in parts by weight: 30-35 parts starch, 11-13.3 parts octenyl succinate starch ester, 2.1-3.5 parts plant polyphenol nanoaggregates, 5.6-7.3 parts plant polypeptide hydrophobic aggregates, 2.2-3.1 parts chitosan, 0.3-1 parts anti-caking agent, and 0.1-0.13 parts food-grade crosslinking agent. Through the above method, this invention constructs a composite intermediate using plant polyphenol nanoaggregates, soybean polypeptide hydrophobic aggregates, and chitosan. The stability of the intermediate structure is increased by crosslinking with food-grade citric acid. A surface coating process is then used to obtain a functional dry powder. This functional dry powder binds to starch particles, achieving hydrophobic protection of the starch particle surface.

The present application relates to the technical field of electrochemical energy storage materials, in particular to a high tap density hard carbon material and a preparation method and application thereof. The method comprises the following steps: starch and nano-carbon particles are subjected to mechanical-chemical treatment at a mass ratio of 100: (1-5), so that the starch is refined and plastic deformation occurs, and at the same time, the nano-carbon particles are coated on the surface of the starch to obtain a composite precursor; the composite precursor is subjected to stepwise programmed temperature pre-oxidation treatment in an oxygen-containing atmosphere to obtain a treated material; and the treated material is subjected to carbonization treatment in an inert atmosphere to obtain a high tap density hard carbon material. Through the synergistic effect of mechanical-chemical treatment and stepwise programmed temperature pre-oxidation, the present application realizes precise control of the morphology of starch particles and uniform coating of nano-carbon, and the obtained hard carbon material has high tap density, high reversible specific capacity, excellent initial coulombic efficiency, good cycle stability and rate performance.

This utility model discloses a continuous dry modification production device for modified starch, including a mixing and modification chamber for dry modification of modified starch. The mixing and modification chamber includes a pretreatment chamber for drying pretreatment of modified starch, a dispersion mixing chamber for mixing modified starch and modifier for modification, and an intelligent monitoring chamber for collecting and monitoring the mixed modified starch. The pretreatment chamber, dispersion mixing chamber, and intelligent monitoring chamber are arranged sequentially inside the mixing and modification chamber. The modified starch is pretreated at high temperature, and the drying temperature of the modified starch is precisely controlled. Modifier and modified starch are uniformly mixed by multiple stirring devices. The mixing chamber slows down the falling speed of modified starch, increases the mixing speed of modifier and modified starch, and avoids dust flying during the mixing of modified starch. The multi-layer screen design ensures the uniformity of modified starch particles and avoids excessive local agglomeration of modified starch, which would affect product quality.

The present application relates to a kind of uniform fructan GEIN and its application, belong to food processing technical field.The uniform fructan GEIN described in the present application has similar spherical structure of starch granule, can significantly improve the pasting properties of Gastrodia elata starch.And, the uniform fructan GEIN described in the present application also has the effect of improving intestinal flora, can promote the growth of beneficial bacteria in intestinal tract, while not cause postprandial hyperglycemia.The discovery and isolation of the uniform fructan GEIN described in the present application fill the research blank of the starch pasting regulation effect of Gastrodia elata polysaccharide, provide new active ingredient for the depth development of Gastrodia elata in the field of food and medicine, and have important significance for the development of Gastrodia elata food and health care product.

This invention discloses a preparation method for improving esterification efficiency and emulsification performance of starch granules using freeze-thaw technology combined with enzymatic pretreatment, belonging to the field of food processing technology. The preparation process is as follows: Starch is dispersed in deionized water (1:1.5) and stirred uniformly at room temperature (25℃) for 1 hour. The freeze-thaw process is repeated, and starch is separated by centrifugation at 3000×g for 5 minutes every 5 cycles. The residue after starch separation is dried at 50℃ for 12 hours, passed through a 100μm sieve, and added to sodium acetate buffer (0.1 M, pH 5.2), preheated to 50℃ for 10 minutes. Subsequently, α-amylase (10 U / g dry weight starch) is added to the solution and cultured at 60℃ for 3 hours. The pH is adjusted back to 5.2 using 1M HCl, TGA (500 U / g dry weight starch) is added, and the mixture is continuously stirred at 55℃ for 6 hours. The enzymatic reaction is then terminated with 2.5 mL of 1M NaOH, and the precipitate is washed five times with deionized water. Starch was separated by centrifugation at 3000×g for 5 min, dried at 50℃ for 12 h and passed through a 100μm sieve, and stored at 4℃.

This invention specifically relates to a method for determining the uniformity of acetylation reaction in modified starch granules. It employs the characteristic peak "intensity ratio method," using a confocal Raman microscope to acquire the Raman spectrum of individual starch granules. The Raman intensity ratio of the characteristic vibrational peak of the ester group (-C=O) to the internal standard peak of the starch skeleton represents the relative magnitude of the modification reaction in a single acetylated modified starch granule. Based on a large number of Raman intensity ratios, a frequency distribution histogram is plotted, and statistical parameters are used to quantify the uniformity of the reaction. Methodological validation results show that this method has good accuracy. This technology solves the technical problem that traditional methods cannot assess the uniformity of acetylation reaction between granules, providing a reliable means for quality control and process optimization of high-quality acetylated starch.

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.

The application discloses a starch-anthocyanin compound and a preparation method and application thereof. The compound is obtained by blending high amylose starch after partial gelatinization with anthocyanin, then retrogradation, dialysis, drying, crushing and sieving, wherein the amylose content of the high amylose starch is more than 50% of the total mass of the starch; the starch / anthocyanin compound is in a granular form, and the granules are in a state of concave and mutual aggregation or adhesion. The high amylose starch is used to replace common starch, and the high amylose starch is partially gelatinized, so that the granular form of the starch is retained, and the hydrophobicity of the starch granules is enhanced, then the starch is compounded with anthocyanin, and the obtained compound has the stability, hydrophobicity and pH response color changing capacity; and the compound can be directly used for freshness indication of food.

This manganese dry battery uses a separator that includes a base material and a paste adhering to the base material, wherein the paste contains starch particles, and the starch particles include first particles that each have a depression in the surface thereof.

The present disclosure relates to pregelatinized starches having a high degree of process tolerance, and methods for making and using them. In one aspect, the disclosure provides a pregelatinized starch having no more than 15 wt% solubles and a sedimentation volume in the range of 15 mL / g to 45 mL / g, the pregelatinized starch comprising starch granules, wherein at least 50% of the starch granules swell but do not substantially fragment when processed in 95 °C water, the pregelatinized starch being in a substantially planar form. In another aspect, the disclosure provides a pregelatinized, drum-dried starch having no more than 15 wt% solubles and a sedimentation voiume in the range of 15 mL / g to 45 mL / g, the pregelatinized starch comprising starch granules, wherein at least 50% of the starch granules swell but do not substantially fragment when processed in 95 °C water.

Excellent dry conditioning benefits and rheological properties are provided by a hair conditioner composition comprising: 5 A) 0.01 to 5 wt % (by weight of the total composition) of a blend comprising i) starch particles having a Dv(50) particle size of from 1 to 12 microns; and ii) a hydrophobic non-silicone oil; In a weight ratio of starch to oil of from 0.5:1 to 1:0.5; 10 B) 0.01 to 5 wt % of an emulsified non-silicone oil; wherein A) and B) are dispersed within: C) a conditioning gel phase comprising a cationic surfactant and a fatty material; and wherein the conditioner is free from silicone. 15

The application relates to a bacterial cellulose-producing engineering bacterium and application thereof, and belongs to the technical field of genetic engineering. Kosakonia oryzendophytica FY-07 introduced alpha-amylase variant amyA opt And the enzyme activity of the amylase is strengthened through chaperone overexpression, and an amylase high-efficiency expression engineering bacterium is constructed. The engineering bacterium can efficiently express amylase, grows fast, has a short fermentation period, and can efficiently synthesize bacterial cellulose by taking starch as a carbon source, and the yield is equivalent to that of glucose. The engineering bacterium can efficiently synthesize bacterial cellulose under various oxygen conditions, solves the interference of starch particles, and converts the same into a synthesis advantage. A starch micro-suspension system provides support for the strain, promotes substrate contact and mass transfer, and serves as a support to induce the production of bacterial cellulose membranes with compact structure and high yield.