997 results about "Amylose" patented technology

The invention produces polyethylene alcohol hydrogel dressing containing medicine and chitosan with 60Co gamma-radial or high energy electron beam radial cross linking. Additional, adds in some humectant, plasticizer, medicine, the solvent is the secondary distilled water, physiological saline or phosphate neutral buffer liquid. The product can release medicine slowly and has natural amylose chitosan with biology sterilization activity, it has active sterilization function, at the same time, it has high water quantity, and good water reserving performance, the mechanical intensity is moderate, and the light penetration and air penetration are excellent. It can accord the demands for curing each kind of wound. It can used as the permanent dressing for light skin injuries, and it also can be applied to the temporally close of severe skin organization wound or burn wound.

A mix for the preparation of rice-containing baked products, containing 100% rice flour (containing about 15 to about 26% amylose), about 0 to about 20% waxy rice flour, about 1 to about 4% hydroxypropyl methylcellulose food gum, about 1 to about 5% yeast, about 0 to about 10% rice bran, about 4 to about 20% sugar, and about 1 to about 4% salt. A method for preparing a rice-containing baked product, involving mixing 100% rice flour (containing about 15 to about 26% amylose), about 0 to about 20% waxy rice flour, about 1 to about 4% hydroxypropyl methylcellulose food gum, about 1 to about 5% yeast, about 0 to about 10% rice bran, about 4 to about 20% sugar, and about 1 to about 4% salt with an amount of water and oil and for a time sufficient to wet all the particles, and baking.

The invention discloses a method for preparing an antipollution chitosan-nonwoven fabric composite porous filter membrane and belongs to the technical field of microfilter and ultrafilter composite membranes. The method is characterized in that the method adopts nonwoven fabric with nominal aperture of between 0.1 and 10 microns as a base membrane; a crosslinking agent is adopted to carry out pretreatment on the base membrane; 0.1 to 10 mass percent amylose is dissolved in an acetic acid solution; the crosslinking agent and a hole formation agent are added into the acetic acid solution; after the crosslinking reaction, a casting film liquid is obtained; at negative pressure, the casting film liquid is evenly coated on the surface and pores of the porous base membrane; and after treatment by a sodium hydroxide solution and a hot water bath, the antipollution chitosan-nonwoven fabric composite porous filter membrane is formed. The method has the advantages that the prepared composite membrane has good mechanical performance and chemical stability; and the surface of the membrane is levelled and smooth. The composite membrane has dual functions of hydrophile and antibiosis, can lighten adsorption of pollutants on the surface of the membrane, inhibit the growth and reproduction of thalli on the surface of the membrane, and keep the penetrating performance of the membrane and is widely applied to the water treatment process of various fields.

A rice flour composition having: from about 20% to about 95%, by weight, of a rice flour that has a WAI of from about 2.6 to about 9; and a Peak Viscosity from about 4 RVU to about 130 RVU; and from about 5% to about 80%, by weight, of rice starch materials that have a WAI of below about 2.2; a Peak Viscosity from about 100 RVU to about 900 RVU, and a soluble amylose content of less than 10%, by weight. The rice starch materials can be selected from the group consisting of waxy rice starch, acetylated rice starch, cross linked rice starch and mixtures thereof. The compositions can be used to produce food products such as fabricated sheeted snacks, extruded products, sauces, coatings for fried foods, dog foods, dog biscuits, baby foods and breads. The preferred dough formed from the inventive rice flour composition is sheetable and forms a cohesive dough. Fabricated snacks made from this dough has the desired taste and texture characteristics. A dry blend for a preferred fabricated snack comprises from about 2% to about 100%, preferably from about 20% to about 85%, most preferably from about 40% to about 75%, of the rice flour composition.

A method and composition for improving one or more indicators of bowel health or metabolic health in a mammalian animal. This comprises the delivering to the gastrointestinal tract of the animal an effective amount of an altered wheat starch in the form of or derived from the grain of a wheat plant. The proportion of amylose in the starch of the grain is at least 30% and/or the grain comprises a reduced level of SBEIIa enzyme activity and/or protein relative to wild-type grain.

A process for preparing the high-toughness alum-free long-thread vermicelli includes such steps as proportionally mixing starch, konjak starch, Arabic gum, straight-chain starch, modified soybean phosphoride, sodium dihydrogen phosphate, sodium carbonate and water, stirring, gelatinizing, cooling, ageing, cutting to become long-thread vermicelli, drying, moistening, drying again and cutting short.

A subject of the present invention is the use of a maltodextrin and/or a glucose syrup obtained, by acid or enzymatic hydrolysis, from a leguminous starch having an amylose content comprised between 25% and 50%, expressed as dry weight relative to the dry weight of starch, for the encapsulation of organic compounds.

Provided is a heavy metal pollution soil repairing agent using excess activated sludge as the rawmaterial, a method of extraction and a method for repairing the heavy metal pollution soil, which relates to a heavy metal pollution soil repairing agent and a method thereof and a method for repairing the heavy metal pollution soil, and solves the problems of high cost, easily secondary pollution and complex operation existing in the repair of the heavy metal pollution soil. The heavy metal pollution soil repairing agent is composed of amylose, protein, nucleic acid, phosphoric acid, amino acid, humic acid compound, uronic acid and the organic substance required for cell lifecycle. The method for distilling the heavy metal pollution soil repairing agent is as follows: the wastewater treatment excess activated sludge reacts under the condition of 80-120 KPa and 60-100 DEG for 8-20 minutes; then centrifuges for 8-20 min at the rotating speed of 5000-7000r/min. The invention adopts the home position repairing or the heterotopia repairing to repair the heavy metal pollution. The invention has low cost and no secondary pollution, simple operation, short repairing period, strong activity and wide range of application.

The invention belongs to fertilizer technical field, more particularly relates to a rice special formula fertilizer, which is characterized in that effective elements of the fertilizer are calculated by weight percent of pure nutrient are nitrogen 25-15, phosphorus pentoxide 15-9, potassium oxide 20-12, silicon dioxide 5-0, calcium 8-0, sulphur 5-1 and zinc 2-1. Compared with the present technique, the rice special formula fertilizer of the invention has reasonable match, accords with the nutrient absorption law of rice, can promote rice growth obviously and raise rough rice output, increase economic benefits and improve rice nutriment quality. In application test, the rice special formula fertilizer of the invention increases the rice yield by 660-820 kg per hectare, increases income 756-146 RMB, increases crude protein, raw fat, crude fiber, nitrogenfree extract and crude ash by 4.1-8.6, 0.14-0.80, 0.4-0.8, 0.1-3.0, 0.4-1.0 percentage points respectively, increases brown rice rate, integral white rice rate, white rice rate of rice processed quality by 1.4%, 1.7% and 1.8% respectively, reduces chalkiness granule rate, chalkiness by 3.2% and 1.9% respectively, reduces content of amylose by 1.0%. In the meanwhile, the fertilizer utilization efficiency is raised by 5.1%-13.8%.

The invention discloses a method for preparing nano-silver hydrosol by using a plant extract. The method comprises the following steps of: dissolving or dispersing soluble amylose into deionized water, stirring until the soluble amylase is completely gelatinized; adding a Tollens solution and mixing to obtain a starch-Tollens compound solution; freezing the compound solution into ice blocks and smashing the ice blocks into colloidal particle ice powder; and adding the colloidal particle ice powder into an alkaline plant blade extract and fully mixing to obtain the nano-silver hydrosol with the particle size of 1 to 100 nm. By the method, a silver ion and protecting agent compound solution is frozen and smashed; the obtained ice powder carried with silver ions is activated and reduced to obtain nano silver; the method is simple, convenient and high in controllability; and the prepared nano-silver hydrosol is high in stability and has the advantages of small nano-silver particle size, uniform distribution, high antibacterial efficiency and the like and can be widely applied to the field of electrons, textile, catalysis, medical materials, medical treatment and public health and the like.

Adhesives particularly useful for industrial bottle labeling are provided. The adhesives comprise at least one starch component and at least one protein component (which is not gelatin or casein). The adhesive is also free of synthetic polymer. The label, along with the adhesive, can be easily removed from the bottle during the recycling process. In one embodiment, the starch component does not contain leguminous starch having an amylose content of 25% or more. In another embodiment, the adhesive comprises a crosslinking agent.

The present invention belongs to a method for preparing nature fruit vegetable antistaling agent using capsule technology. The mixing ratio as well as method is: getting 0.01 to 2 percent of foliage oil, 0.1 to 5 percent of microcapsule wall material, adding water of one kilogram and mixing them fully to obtain fruit vegetable antistaling agent; the fruit vegetable antistaling agent is coated fruit exterior, forming a translucence film composed of foliage oil and microcapsule after drying, so as to reach antistaling; the chitose and the konjak amylose etc. dissolve slowly in water, it is need to heat or add auxilytic agent into the water, the auxilytic agent includes: citric acid and vinegar acid, the ratio is 0.5 percent to 2 percent, the heating temperature is 20 DEG C to 90 DEG C. The method is that the fruit vegetable antistaling agent is nature safe and high effect, which not only solve the problem of antistaling as well as storing effectively, but also the leftover on the fruit has no toxicity, and reaching edible standard, which solves the problem that the medical antistaling agent has remnant poison and can improve the economy efficiency of fruit vegetable.

The invention relates to a preparation method of Pickering emulsion and particularly relates to a preparation method of Pickering emulsion with a stable starch nanoparticle emulsifier. The preparation method comprises the following steps: selecting starch with the amylose content of 20%-40%; after gelatinizing, titrating with absolute ethyl alcohol; centrifuging, and freeze-drying sediment to obtain starch nanoparticles; and adding the starch nanoparticles into an oil-water mixed solution to prepare the Pickering emulsion. According to the preparation method of the Pickering emulsion with the stable starch nanoparticle emulsifier, raw materials are natural and preparation conditions are moderate; strong-corrosion reagents including sulfuric acid and the like are not used, so that a preparation process is green and environment-friendly and has no toxin and no emission of harmful substances; the prepared Pickering emulsion has good stability and good sensitive environment stability, and has relatively good heat resistance and salt resistance; and the invention provides an efficient, green and environment-friendly preparation method of starch nanoparticles and the starch nanoparticles can be widely applied the fields of foods and cosmetics, and medicines.

The invention discloses a process for moderate-temperature self-assembly preparation of nano starch from enzymolysis short amylose. The process particularly comprises the following steps: (1) preparing a buffer solution; (2) preparing a starch water solution; (3) past-forming; (4) enzymolyzing, and then using anhydrous ethanol to precipitate the degreased starch solution; (5) preparing short amylose; (6) preparing nano starch. According to the process, enzyme hydrolysis starch is adopted to prepare nano starch at 30-70 DEG C in an anabiosis manner, the nano starch prepared by the method is high in productivity, low in cost, safer and more environment-friendly, and can serve as embedding materials of medicines, active ingredients and the like, and the application field of the process in the food industry is widened.

The invention discloses a method for preparing fibroin nano-silver hydrosol. The method comprises the following steps of: dissolving or dispersing soluble amylose in deionized water, stirring the mixture until the amylose is completely gelatinized to obtain a starch solution, adding a silver nitrate solution, and then mixing the mixture with a fibroin solution to obtain a fibroin-starch-silver nitrate ternary complex solution; adjusting the pH value of the ternary complex solution to be at 8-10 by ammonia water, and fully mixing at the temperature condition of 20-80 DEG C to obtain the fibroin nano-silver hydrosol with the silver particle size being 1-100nm. According to the method, micromolecule fibroin peptide is used as a capturing agent and a reducing agent, the soluble starch is used as a dispersing agent and a protective agent, and the micromolecule fibroin peptide and the soluble starch are used for reducing and preparing nano-silver. The prepared nano-silver hydrosol is small in silver particle size, uniform in distribution and good in stability, in the prepared process, the reaction is mild, the operation is convenient, the green and environment-friendly aim is realized, and the fibroin nano-silver hydrosol can be widely used as a functional nano-material.

The invention relates to thermoplastic starch plastics. The preparation compositions, the weight portions and the manufacturing technique are as follows: firstly, 100 kilograms of starch, 17.5 kilograms of primary plasticizer, 3 kilograms of maleic anhydrides, 0.035 kilograms of overoxidized tertiary butyl and 3 kilograms of Di-2-ethylhexyl maleate are taken and mixed; secondly, extrusion reaction is performed on water and mixture together at a temperature of between 140 and 160 DEG C; thirdly, agglomerates are obtained after cooling of the mixture; fourthly, all the agglomerates are mixed with 16.5 kilograms of secondary plasticizer and 0.75 kilograms of glutaric dialdehyde which are taken by weight portion through a high-speed mixing machine, and extrusion reaction is performed subsequently; fifthly, the thermoplastic starch plastics are obtained after cooling and granulation of extruded materials. Compared with the products of the same kind, the thermoplastic starch plastics have low cost and simple manufacturing technique and do not need special amylase extract from starch; the degradation speed is lower than the accumulation speed; the heat resistance, the water resistance and the physical characteristics are obviously improved; the comprehensive cost is close to the common plastic cost; and the condition is created for popularizing completely degraded plastics.

The invention relates to a method for preparing perilla herb oil powder, which comprises the following steps: one part of wall-material aqueous solution combined by protein and amylose is added into the perilla herb oil to form W/O type emulsion which is phase converted into O/W type emulsion; the O/W type emulsion and the remaining two parts of the wall-material aqueous solution form an emulsion, the pH value of which is adjusted to lead the protein in the wall materials after being condensed to be treated with spay drying so as to prepare the perilla herb oil powder. The perilla herb oil powder obtained by the method has low surface oil rate and high encapsulation efficiency. The product is mainly used in infant formula milk power, middle and old-aged people formula milk powder, formula food, pregnant women foods and other functional foods.

The invention discloses a method for determining taste quality of rice by using physical and chemical property indexes of rice quality. The method comprises the following steps: respectively obtaining measured values of five physical and chemical indexes of rice to be determined: amylose, gel consistence, alkali spreading value, protein and grain shape; carrying out conversionof characteristic vectors forthe measured values of thefive physical and chemical indexes of rice; obtaining angles ofthefive physical and chemical indexes of rice; carrying out characteristic vector analyses of each index by means of radar map; carrying out a comprehensive evaluation analysis by means of radar map; carrying out a conversion of thecomprehensive evaluation result, and obtaining a rice taste value. The method provided by the invention can be used for rapidly determining taste quality of rice.

The invention provides an improved flour food. The improved flour comprises dietary fiber, whole wheat flour dietary fiber and amylose extracted from corn, potato, sweet potato and rice; the flour can be made into fine dried noodles, dumplings, gruel, bread, pastry, cake, steamed bread and so on. The food has low glycemic index, can satisfy health and nutrition of human body, delay the sugar absorption, effectively control blood sugar in diabetes patients, make the glycolated hemoglobin restore to normal value; the food with low glycemic index can reduce load of pancreatic islet, recover pancreatic islet function, secrete insulin resistance and protect B cell; the food with low glycemic index supplies high-nutrition content natural food to diabetes patients with nutrition utilization obstacle and nutrition deficiency caused by metabolic disorder; the invention is a kind of convenient health food.

The invention provides an amylose detector, which comprises a laser emitter, a photoelectric detecting unit, a sample injector, an analog input module and a control unit, wherein detection solution after pretreatment is filled in the sample injector; the sample injector converts laser light emitted by the laser emitter into light signals, and transmits the light signals to the photoelectric detecting unit; the photoelectric detecting unit converts the light signals into electric signals and supplies the electric signals to the analog input module which converts the electric signals into digital signals and transmits the digital signals to the control unit; and the control unit calculates the amylose content according to a relation between the absorbance and a detection voltage. The amylose detector provided by the invention uses laser detection, so the accuracy is high, the stability is high, the volume is small and the composition is simple. The invention also provides a method for detecting amylose, which has the advantages of simple steps, short detection time and high accuracy for a detection result.

The present invention relates to liquid chromatographic chiral stationary phases (CSPs) and their preparation. The CSPs are based on carbamate-derivatized polysaccharides that are covalently bound onto inorganic oxide carriers via unique linkage chemistry. The present invention also relates to methods of obtaining the said linkages, which include derivatizing and functionalizing the polysaccharides, and also chemically bonding the functionalized carbamate-derivatized polysaccharides onto inorganic oxide carriers. The polysaccharide derivatives so obtained can be used as materials for the liquid chromatographic chiral separation of enantiomers. The preferred inorganic oxides are silica, zirconium oxide, and aluminum oxide. Cellulose and amylose are the preferred chiral polysaccharides.