46 results about "Amylomaize Starch" patented technology

The invention provides a cation surface sizing agent and preparation method thereof. Raw materials are as follows by weight percent: 8-17% of styrene, 5-15% of butyl acrylate, 0.5-5% of acrylamide, 0.5-5% of N-hydroxymethyl acrylamide, 1-5% of methyl acryloyl ethyl trimethylammonium chloride, 2-8% of starch, 0.001-0.003% of amylase, 0.2-0.7% of organic acid, 0.2-0.8% of emulsifier, 1-5% of 27% hydrogen peroxide, 0.01-0.05% of iron dichloride, the balance water. The cation surface sizing agent is prepared by starch pasting, monomer pre-emulsion and emulsion polymerization. The invention is usedfor surface sizing of paper and achieves the aim of improving physical performances of paper such as water-resistance, ring crush compression resistance, surface strength and the like.

The invention provides a solid alcohol solid dispersion combination of EGCG (epigallocatechin gallate) with thermal stability and sugar alcohols. The sugar alcohols include one or more ingredients comprising fructose, newtol, fructo-oligose, xylooligosaccharide, polydextrose, mannitol, cane sugar, glucose, resistant dextrin, sorbitol, maltose, isomalt, mannose oligomer, carbo wax, dextrin, cyclodextrin, hydroxyl-lpropyl-beta-cyclodextrin, microcrystalline cellulose, carboxymethylcellulose, pregelatinized starch, starch, starch sugar, lactose, sodium carboxymethyl starch, proteoglycan, sucralose, aspartame, acesulfame, stachyose, neotame and stevioside, and the sugar alcohols and the EGCG are in (12-80):1 in proportion by weigth. The invention further provides a preparation method of the solid dispersion combination and application in preparation of the solid dispersion combination. By the aid of the solid dispersion combination, the EGCG is effectively improved in stability.

The invention relates to a paste dosage-form trichoderma biopesticide composite and a preparation method thereof. The paste dosage-form trichoderma biopesticide composite comprises pesticide components and auxiliary materials, wherein the pesticide components include trichoderma hyphae and trichoderma chlamydospores, wherein the trichoderma chlamydospores are dispersed in the trichoderma hyphae. The paste dosage-form trichoderma biopesticide composite is characterized in that the auxiliary materials are starches which account for 5-10 percent of the total weight of the paste dosage-form trichoderma biopesticide composite. The preparation method comprises the following steps of: inoculating the trichoderma strains into a sterile liquid culture medium to carry out shake culture for 36-48 hours; taking out filtered trichoderma hyphae; regulating the pH of the trichoderma hyphae by using a hydrochloric acid; and adding a copper ion inhibitor and 5-10 percent of the starches for uniformly stirring so as to prepare the paste dosage-form trichoderma biopesticide composite. The paste dosage-form trichoderma biopesticide composite and a paste dosage-form biopesticide prepared by the methodhave the maximal disadvantages of stable product quality and long saving time, can be stored for 18 months at normal temperature and kept in high activity and can be stored for 3 years under the condition of refrigeration; and secondly, the invention has rarefied formula and advanced process and is beneficial to environmental protection without generating any waste water, waste gas and waste residues.

This invention comprising in hydroxypropyl starch for preparing empty capsules in alimentary and medical use, and hydroxypropyl starch-based soft capsules. This invention takes water as solvent, mix with propylene epoxide and catalyst for reaction, after washing, drying, hydroxypropyl starch is completed. The MS level of substitution of starch is around 2˜5, gelatinization point between 25˜60° C. After the hydroxypropyl starch is gelatinized by heating in water, a hydroxypropyl starch matrix soft capsule can be prepared. The invention consists in introducing hydroxypropyl by modifying the molecular chain of starch to improve the flexibility and hydrophilicity of starch. Therefore, a hydroxypropyl starch matrix soft capsule capable of preparing a flexible and disintegrating property is provided.

The invention discloses photo-thermal stable vitamin microcapsule powder and a preparation method thereof. The photo-thermal stable vitamin microcapsule powder comprises the following raw and auxiliary materials: vitamins, grease, modified starch, starch sugar, a stabilizer composition, a pH regulator, a buffer agent, amylase and an anti-caking agent. The preparation method comprises the followingsteps of: dissolving the vitamins in the grease, and adding astaxanthin in the stabilizer composition; dissolving the modified starch in water, and adding the solution to obtain primary emulsion; dissolving the starch sugar in water, adding the amylase, controlling the DE value to be 70-85%, inactivating, adding enzymatic hydrolysate into the solution, and performing primary emulsification; dissolving gellan gum and konjac gum in the stabilizer composition in water, adding the solution, and performing secondary emulsification; and performing spray drying on the emulsion, thereby obtaining thevitamin microcapsule powder. The vitamin microcapsule powder obtained by the method provided by the invention has the characteristics of stable photo-thermal conditions, high embedding rate and the like.

The invention discloses a thermophilic acidic raw starch alpha-amylase mutant capable of improving the cornstarch degradation capability as well as a preparation method and application thereof and belongs to the field of genetic engineering and enzyme engineering. According to the thermophilic acidic raw starch alpha-amylase mutant, an SBD structure domain of raw starch alpha-amylase GTamy is subjected to cyclic rearrangement mutation; then SBD in the GTamy is replaced with an SBD cyclic rearrangement mutant, so as to construct a GTamy cyclic rearrangement mutant. The enzyme activity of the GTamy cyclic rearrangement mutant to the cornstarch is compared to screen a raw starch alpha-amylase mutant GTamy-S498 with the cornstarch degradation capability which is remarkably improved. The enzymeactivity of the raw starch alpha-amylase mutant GTamy-S498 provided by the invention on the cornstarch is improved to 114.77 U/mg from 21.08 U/mg of a control group (before mutation) and is improvedby 5.44 times. The cornstarch degradation capability of the raw starch alpha-amylase mutant GTamy-S498 is remarkably improved and the enzymatic property meets the requirements of a starch liquefactiontechnology and is more suitable for the starch liquefaction technology.

The invention provides a solid dispersion composition of levocarnitine and a preparation method of the solid dispersion composition. Sugar alcohol substances include one or more of fructose, xylitol, polydextrose, fructo-oligose, mannitol, cane sugar, glucose, resistant dextrin, sorbitol, maltose, isomaltulose alcohol, manoligosaccharides, dextrin, cyclodextrin, hydroxypropyl-beta-cyclodextrin, microcrystalline cellulose, carboxymethylcellulose, hydroxypropyl methylcellulose, pre-gelled starch, starch, starch sugar, lactose, sodium carboxymethyl starch, protein sugar, sucralose, aspartame, acesulfame potassium, stachyose, Neotame and stevioside; the sugar alcohol substances are combined with the levocarnitine in a weight ratio of (13-50):1; the levocarnitine further comprises levocarnitine tartrate or levocarnitine hydrochloride. The solid dispersion composition has excellent moisture absorption resisting quality stability and is significant for the improvement of the product quality.

The invention discloses a polyurethane elastomer preparation method using starch liquefaction products. The polyurethane elastomer preparation method comprises the following steps: (1) putting a liquefying agent comprising polyethylene glycol 400 and glycerin into a container with the mass ratio of the polyethylene glycol 400 to the glycerin of 2:1, stirring and elevating the temperature to 150 DEG C; (2) adding an acid attapulgite catalyst into the container, adding starch into the container with the mass ratio of the starch to the liquefying agent of 6:1, stopping the reaction when the hydroxyl value range of the starch liquefaction products is 90 mgKOH/g to 170 mgKOH/g; (3) weighing a rubber vulcanizator, putting the rubber vulcanizator into the container, and adding acetone until complete dissolution; and (4) adding polyether and the starch liquefaction products into a acetone solution of the rubber vulcanizator, adding auxiliary agents and attapulgite, stirring evenly, then adding toluene diisocyanate (TDI), finally adding 1-2 drops of catalyst dibutyltindilaurate, stirring to foaming, and then obtaining polyurethane elastomer. The polyurethane elastomer preparation method is simple, and is suitable for industrial production, and the polyurethane elastomer has the advantages of high strength, good stability and strong water resistance.

The invention relates to a preparation method and an application of an acidolyzed-oxidized amyloid cigarette humectant. The humectant is prepared through acidolysis and oxidation modifications and by using the following raw materials: based on every 350 g of starch, 10-150 g of 37% concentrated hydrochloric acid, 400-1,200 g of a water solution and 20-70 g of sodium hypochlorite. The preparation method is advantageous in that the starch is used as a raw material; the starch belongs to renewable resources, is widely available and has low cost; the starch is subjected to some acidolysis modification and oxidation modification, so that the modified starch has very strong water absorption and water retention capacities. The preparation method is environment-friendly and is low in cost. By spraying the humectants provided by the invention on tobacco leaves uniformly during a tobacco leaf-adding process, processing resistance of the tobacco can be increased; crushing of the tobacco leaves in the processing process can be reduced; tobacco leaf consumption of the cigarette is reduced; taste and flavor of the cigarette can be improved; stimulation of smoke can be alleviated; and effects for improving physical moisture preservation and sense moisture preservation can be achieved at the same time.

A molded hook surface fastener having a base plate and a large number of hook engaging elements projecting from a surface of the base plate, wherein both the base plate and the hook engaging elements is made of a resin mixture comprising polybutylene succinate (A) as a continuous phase and starch (B) as a dispersed phase, and satisfying the following requirements (1) to (3) simultaneously:

• • (1) the dispersed phase comprises polyvinyl alcohol (C);
  • (2) the starch (B) comprises a modified starch, and an amylose content of the starch (B) is 45% by weight or more; and
  • (3) the hook engaging element tapers from a surface of the base plate toward a distal end portion and gradually bends from its middle such that the distal end portion faces a direction slightly approaching the surface of the base plate,

is produced without breaking the hook engaging element during the pultrusion molding and is decomposed in the natural environment and does not bring about environmental destruction when discarded.

The invention discloses a preparation method of superfine zinc oxide powder, which comprises the following steps: step 1, preparing a suspension which comprises the following components: 5-10% of starch, 0.2-0.8% of amylase and the balance of water; step 2, putting the suspension prepared in the step 1 into a pressure kettle, heating to 60-80 DEG C, and then stirring for 20-50 minutes; step 3, adding 5-15% of coarse-particle zinc oxide powder into a pressure kettle in the step 2, enabling the concentration of the coarse-particle zinc oxide powder to reach 10%, and then cooling the coarse-particle zinc oxide powder to be below 0 DEG C; and step 4,introducing ozone into the suspension in the pressure kettle through an ozone generator.The preparation method is simple and convenient to operate, and compared with a traditional precipitation method for preparing superfine zinc oxide, a large amount of waste water and other solid waste are not generated, the used starch is natural, ozone can be obtained through an ozone generator, other chemical raw materials are not needed, and the particle size of the obtained product is controllable.

The invention discloses a hericium erinaceus full-nutrition fed-batch semi-continuous fermentation method. The method comprises seed tank culture and fermentation tank culture, and is characterized in that an adopted seed culture medium comprises 1.3-2.0% of soybean meal, 0.4-0.6% of peptone, 2.8-3.2% of glucose, 0.12-0.18% of KH2PO4, 0.07-0.08% of MgSO4 and 0.16-0.18% of a defoaming agent; wherein the fermentation medium is prepared from 2.8-3.5% of bean pulp, 0.8-1.2% of glucose, 2.8-3.2% of molasses, 1.8-2.2% of corn starch, 18-22mg/L of amylase and 0.1% of a defoaming agent, the bean pulp in the seed medium is residue-free bean pulp, and the bean pulp in the fermentation medium is residue-free bean pulp. According to the method, the growth speed of hericium erinaceus thalli is increased, the yield of hyphae is increased, the fermentation time is shortened, and the content of polysaccharide and polypeptide is high.

The invention provides an enzyme preparation for improving bread gluten strength. The preparation comprises the following raw materials in percentage by mass: 1%-2.5% of amylase, 0.5%-2% of hemicellulase, 0.5%-2% of phospholipase, 1%-2% of ascorbic acid and the balance of starch. The amylase, the hemicellulase and the phospholipase constitute the complex enzyme preparation. Baking quality of breadcan be improved and aging of fermented baked flour products can be effectively delayed by the synergistic effect of the compound enzymes in an optimized proportion in the enzyme preparation.

The invention discloses a method for preparing a starchy cigarette humectant by enzymatic hydrolysis and carboxymethylation and a use of the starchy cigarette humectant. The starchy cigarette humectant is prepared from 350g of starch, 5-120mg of alpha-amylase, 400-1200g of an ethanol/aqueous solution, 30-120g of sodium hydroxide and 50-230g of sodium chloroacetate by enzymatic hydrolysis and carboxymethylation. The method utilizes starch as the raw material and starch is a renewable resource and has a wide resource and a low price. Through enzymatic hydrolysis modification and carboxymethylation modification of starch, the modified starch has very strong water absorption and water retention capability, is environmentally friendly and has a low cost. The starchy cigarette humectant is uniformly sprinkled on the tobacco leaf in a tobacco leaf processing process so that tobacco leaf processing resistance is improved, crushed tobacco leaves in the processing process are reduced, cigarette tobacco leaf consumption is reduced, a taste and mouth feel are improved, smoke irritation is reduced and physical moisture retention and sensorial moisture retention effects on tobacco are improved simultaneously.

The invention relates to the technical field of carton gluing. The invention discloses a double-system veneering gluing method for carton production. The method comprises the following steps of (1) introducing 880-1100 kg of water into a glue storage barrel, then introducing 11-14 kg of glue powder into the glue storage barrel, adding 160-200 kg of starch, and finally adding 20-25 kg of caustic soda flakes to obtain a mixed solution A, and 2) starting a stirring device, and stirring the mixed solution A prepared in the step 1) for 3-5 minutes to obtain a fully mixed solution B. According to the double-system veneering gluing method for carton production, starch is added in the glue production process, starch is a polymeric carbohydrate, the polysaccharide is composed of a single type of sugar unit, the basic composition unit of the starch is alpha-D-glucopyranose, a covalent polymer formed by connecting glucose after water molecules are removed through glycosidic bonds is a starch molecule, the starch becomes turbid gradually after being placed in a thin paste state for a certain period of time, and finally insoluble white precipitate is generated.

The invention relates to shrimp paste, in particular to fish roe paste and a preparation method thereof. The fish roe paste is mainly prepared from the following components: shrimp meat, flying fish roes, egg white, potato starch, soybean oil, modified starch and amylase. The preparation method of the fish roe paste specifically comprises the following steps: adding curdlan and konjac glucomannaninto ice water, slowly adding seasonings, performing uniform mixing, adding ice water, and performing stirring to obtain glue paste; performing stirring and mixing for a first time: uniformly stirringthe shrimp meat, the seasonings and the flying fish roes, adding the potato starch, performing uniform stirring, adding the amylase, performing stirring, adding the modified starch, and performing stirring to obtain slurry; and performing stirring and mixing for a second time: adding the egg white, the soybean oil and the glue paste into the slurry, and performing uniform stirring to obtain the fish roe paste. According to the fish roe paste, the fish roe paste is prepared by combining the flying roes with the modified starch, the amylase, the curdlan and the konjac glucomannan so as to prevent meat fibers from shrinking, and the fish roe paste has better elasticity, good taste and the like.