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3142 results about "Starch" patented technology

Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants as energy storage. It is the most common carbohydrate in human diets and is contained in large amounts in staple foods like potatoes, wheat, maize (corn), rice, and cassava.

Method for preferentially extracting lithium and recycling valuable metal from retired ternary lithium battery and application

The invention relates to the technical field of retired ternary power battery recovery, and particularly discloses a method for preferentially extracting lithium and recovering valuable metals from a retired ternary lithium battery and application of the method. According to the method, the traditional process is broken through the preferential lithium extraction, and efficient recovery of lithium, Ni, Co and Mn is realized by utilizing'fast-medium-slow 'multi-stage cooperation of a composite reducing agent and accurate adaptation of roasting and leaching parameters, so that the method has the advantages of low cost, high efficiency, low energy consumption and the like, and is suitable for large-scale industrial production. The method is low in energy consumption and environment-friendly, and is applied to resource recycling of the retired ternary lithium battery, and the precursor can be used for reproducing a positive electrode material or used for a catalytic material.
Owner:GUIZHOU NORMAL UNIVERSITY

Method for reducing content of aged starch and soluble miscellaneous sugar in alpha-cyclodextrin

PendingCN121087125AFermentationAmylaseSugar
The invention discloses a method for reducing the content of aged starch and soluble miscellaneous sugar in alpha-cyclodextrin, and belongs to the technical field of alpha-cyclodextrin synthesis, the method comprises the following steps: liquefaction, conversion, primary filtration, inclusion, secondary filtration, complexing agent removal and post-treatment; the conversion comprises the following steps: adding alpha-CGTase and isoamylase into the starch liquefied liquid at 38-42 DEG C, adjusting the pH value to 5.30-5.70, and carrying out conversion to obtain a conversion liquid; the primary filtration comprises the following steps: carrying out enzyme deactivation treatment on the conversion liquid, filtering, washing a filter cake with water, and combining the washing liquid with the filtrate to obtain primary filtrate; and the secondary filtration comprises the following steps: filtering the material liquid containing the complex, taking a filter cake, and washing the filter cake with water to obtain the inclusion compound. The preparation method of the alpha-cyclodextrin is improved, so that the alpha-cyclodextrin with high yield and high stability is obtained, and the industrial controllability is realized.
Owner:SHANDONG GUOBANG PHARMA +1

Enzymatic degradation of mycotoxins during grain processing

ActiveUS20210403842A1Mitigating mycotoxin contaminationMitigate mycotoxin contaminationFood processingBeer fermentationMycotoxin contaminationEnzymatic degradation
Methods, compositions, and systems for steeping, propagation and fermentation, particularly large-scale operations for production of starch and ethanol and fermentation product streams are provided. Addition of mycotoxin mitigating enzymes or microorganisms expressing mycotoxin mitigating enzymes to steeping, propagation, and / or fermentation tanks, and / or to post-fermentation product streams, mitigates mycotoxin levels in fermentation co-products obtained from mycotoxin contaminated feedstocks.
Owner:POET RES INC

Special fertilizer suitable for saline-alkali soil and preparation method thereof

The invention relates to a special fertilizer suitable for saline-alkali soil and a preparation method thereof. The fertilizer is granular and has a multi-layer structure which is sequentially arranged from inside to outside: a nutrition core layer, a controlled release film layer, a soil improvement fast exchange layer and a microorganism attaching layer. The nutrition core layer contains nitrogen, phosphorus, potassium and medium trace elements, and meets the basic nutrient requirements of crops; the controlled release film layer is self-assembled layer by layer by adopting alginate / chitosan, a humic acid-ferrous complex and a breakable cross-linking point are inserted into the film, and starch is sprayed on the outer layer, so that an ionic strength / alkalinity dual-response controlled release system is formed; the soil improvement quick exchange layer contains microcrystalline gypsum and ferrous sulfate; the microbial epiphytic layer fixes salt-tolerant phosphate solubilizing bacteria, potassium bacteria and exopolysaccharide-producing bacillus by using a charcoal-zeolite carrier, and the bacteria are distributed on the surfaces of the particles in a dotted manner. The fertilizer realizes organic combination of soil improvement, fertilizer supply and microbial regulation and control, can significantly reduce the soil salinity and alkalinity in a saline-alkali soil environment, and improves the fertilizer utilization rate and the crop growth performance.
Owner:GUIZHOU QIANJIAFU ECOLOGICAL AGRICULTURE TECHNOLOGY CO LTD

Betaine-containing phosphate feed additive capable of improving net energy level and preparation method and application of betaine-containing phosphate feed additive

The invention relates to a betaine phosphate-containing feed additive for improving net energy level and a preparation method and application thereof, and belongs to the technical field of feed additives, the preparation method comprises the following steps: preparing composite betaine phosphate, preparing composite zinc methionine, and mixing; the preparation of the composite betaine phosphate comprises the following steps: preparing a betaine phosphate crude product, preparing a composite silicon dioxide carrier, and crystallizing; the preparation of the compound zinc methionine comprises the following steps: preparing an activated silicon dioxide carrier, adsorbing starch and adsorbing the zinc methionine; in the step of mixing, the compound betaine phosphate and the compound zinc methionine are mixed and then stirred at room temperature, and the betaine phosphate-containing feed additive capable of improving the net energy level is obtained. The feed additive prepared by the invention has a strong effect of improving the net energy level of broiler chickens, is not easy to have the problems of bonding and clustering, and is good in storage resistance.
Owner:SUNWIN BIOTECH SHANDONG CO LTD +1

Nitro binary fused salt and preparation method thereof

The invention relates to the technical field of molten salt, in particular to nitro binary molten salt and a preparation method thereof. The preparation method comprises the following steps: mixing sodium carbonate and a potassium hydroxide solution, and then adding a starch-based grafted crystal inhibitor to inhibit crystallization; adding a nitric acid aqueous solution in two stages, and introducing eutectic seed crystals to guide nucleation at the end of the first stage; crystal distribution is optimized through falling film evaporation and concentration and setting of partial reflux; and after spraying granulation, carrying out short-time melting reforming and controlled cooling in an inert atmosphere. According to the method, the composition uniformity and the structural stability of the molten salt are remarkably improved, so that the product has a melting point close to a theoretical eutectic point, low supercooling degree, high melting latent heat and excellent thermal cycling stability and corrosion resistance, and is suitable for an industrial heat storage system running for a long time.
Owner:SHANXI WOJIN NEW MATERIAL CO LTD

Biodegradable multilayer film comprising outer layer and core layer for wall of disposable bag

The present disclosure relates to a biodegradable multilayer film comprising stacked on each other in the following order: a) a first outer layer comprising a first polymer selected from the group consisting of poly (butylene adipate-co-terephthalate) (PBAT), poly (butylene succinate) (PBS), poly (butylene succinate-co-adipate) (PBSA), and mixtures thereof; b) a core layer comprising a blend of thermoplastic starch (TPS) and polybutylene adipate terephthalate (PBAT); c) a second outer layer comprising a second polymer selected from the group consisting of poly (butylene adipate-co-terephthalate) (PBAT), poly (butylene succinate) (PBS), poly (butylene succinate-co-adipate) (PBSA), and mixtures thereof. The present disclosure also relates to a disposable bag, a bioreactor and a container suitable for mixing, packaging, storing or transporting biopharmaceutical substances, wherein the disposable bag, bioreactor and container comprise the biodegradable multilayer film.
Owner:SARTORIUS STEDIM FMT SAS +2

Wide vermicelli processing remote control system based on Internet of Things

The invention relates to the technical field of intelligent control of a starch product processing process, in particular to a wide vermicelli processing remote control system based on Internet of Things. Comprising a data acquisition module used for acquiring initial biochemical characteristic parameters of raw materials and monitoring dynamic process parameters in real time; the first processing module is used for determining a starch state vector through a preset hybrid physical information neural network model; the second processing module is used for calculating a coordination index according to the starch state vector and a preset state coordination limit value vector; the third processing module is used for performing prospective prediction through a hybrid physical information neural network model and determining a trend vector; and the parameter correction module is used for determining a corrected process control parameter vector through a multivariable state feedback control law. The system solves the problem that the traditional process depends on indirect parameters and artificial experience to carry out fuzzy judgment, the scientificity and transparency of process monitoring are improved, and a solid mechanism model foundation is laid for realizing fine control.
Owner:定西市食品检验检测中心 +1

Environmentally degradable plastic as well as preparation method and application thereof

PendingCN121362444AThermoplasticPolymer science
The invention discloses environmentally degradable plastic as well as a preparation method and application thereof, and belongs to the technical field of degradable plastic. The degradable modified plastic is prepared from the following raw materials: polylactic acid, poly (butylene terephthalate)-adipate, modified thermoplastic starch, modified cellulose, poly (butylene succinate), epoxidized soybean oil, polyvinyl alcohol, glycerol monolaurate and ethylenediaminetetraacetic acid. Wherein the modified thermoplastic starch is obtained by thermoplastic modification of starch through a plasticizer and modification of castor oil and toluene diisocynate; the modified cellulose is obtained by modifying cellulose acetate with chitosan. By regulating and controlling the types and proportions of the raw materials for preparing the plastic, the plastic with excellent degradation performance and mechanical performance can be obtained, the shopping bag is prepared from the plastic, the loading capacity can be remarkably improved, the plastic is easily degraded by microorganisms in the environment after being discarded, and environmental pollution is avoided.
Owner:资阳众诺诚塑料制品有限责任公司

Capsule used as aerosol generating substrate and aerosol generating product

The invention provides a capsule used as an aerosol generating substrate, the capsule contains fuming materials propylene glycol and glycerol, a capsule skin comprises a colloidal substance, the colloidal substance is at least one of animal glue, vegetable glue, starch and a starch modifier, and only one layer of capsule skin is provided. The invention also discloses an aerosol generating product using the capsule, and uniform and sufficient smoke release can be obtained at a lower heating temperature, so that the aerosol product can further reduce the energy consumption, reduce the release of harmful substances and improve the feeling of a smoker.
Owner:SHENZHEN HUABAO COLLABORATIVE INNOVATION TECH RES INST CO LTD

Seed pelletizing formula for improving salt tolerance of suaeda salsa in coastal saline-alkali land and processing method

The invention discloses a seed pelleting formula for improving salt tolerance of suaeda salsa in coastal saline-alkali soil and a processing method, the pelleting formula comprises 348-492 parts of a filler, 348-492 parts of a binder, 348-492 parts of a water-retaining agent and 348-492 parts of a biological stimulant, and the filler comprises attapulgite, talcum powder and vermiculite; the binder is 73-89 parts and comprises sodium carboxymethyl cellulose, polyvinyl alcohol and starch; the water-retaining agent accounts for 30 to 42 parts, and the water-retaining agent is polyacrylamide; the biological stimulant is prepared from the following components in parts by weight: 20-78 parts of yeast metabolite, potassium fulvate, seaweed essence, rhamnolipid and a microbial agent; the processing method comprises the steps of seed selection, raw material preparation, layered coating, low-temperature drying, selection and sieving, and polishing and shaping. According to the invention, a layered coating process is adopted to break through a traditional single mixed coating mode, an isolation breathable microenvironment is firstly constructed by the filling layer, then growth-promoting stress-resistant nutrient substances are injected by the active layer, and finally, the shaping layer is used for locking and shaping and strengthening protection, so that the seeding performance, salt tolerance, germination activity and seedling stress resistance of the pellets are remarkably improved.
Owner:JIANGSU COASTAL AREA AGRI SCI RES INST

Starch-collagen composite hydrogel as well as preparation method and application thereof

The invention discloses starch-collagen composite hydrogel as well as a preparation method and application thereof. Collagen is catalyzed by microbial transglutaminase to form a covalent cross-linked network, and meanwhile, hydroxypropyl starch is introduced to construct a physical interpenetrating network through molecular chain penetration and hydrogen-bond interaction; and chondroitin sulfate is further integrated to strengthen the network structure and biological activity through electrostatic interaction. The method is mild in condition and does not need a toxic chemical cross-linking agent, the obtained composite hydrogel has an interpenetrating double-network structure and has excellent mechanical properties, enzymatic degradation resistance and cell affinity, the compression modulus of the composite hydrogel is remarkably improved, the composite hydrogel can keep structural stability for a long time in a collagenase environment, cell adhesion and proliferation can be effectively promoted, and the composite hydrogel has a good application prospect. The hydrogel can be widely applied to tissue engineering scaffolds, wound dressings, drug sustained-release carriers and cartilage repair materials.
Owner:SHANGHAI CHUANGYUAN COSMETICS

Method for inhibiting generation of vomitoxin from bacillus cereus

The invention discloses a method for inhibiting production of vomitoxin from bacillus cereus, which is characterized in that isoleucine is added into a substance needing to inhibit production of vomitoxin from bacillus cereus, preferably 5-20mM of isoleucine is added. According to the present invention, the content of the toxin is detected through the liquid chromatography-mass spectrometry, and the cytotoxicity experiment verification results show that the isoleucine can significantly inhibit the synthesis of the vomitoxin of the bacillus cereus in the culture medium and the matrix, and can effectively reduce the toxic effect of the toxin on HeLa cells; the invention provides a safe and efficient biological control means which is suitable for various food systems such as starch food, dairy products, meat products and the like. Isoleucine can be used as a novel non-toxic and harmless food additive and is low in cost; the use method is simple, the output of vomitoxin can be reduced by directly adding a trace amount of isoleucine, and the food flavor is not affected.
Owner:JINAN UNIVERSITY

Pichia pastoris engineering bacteria and preparation method thereof, and method for producing cellooligosaccharide / disaccharide by using corn straw or wheat straw

The invention relates to pichia pastoris engineering bacteria and a preparation method thereof, and a method for producing cellooligosaccharide / disaccharide by using corn straws or wheat straws, and belongs to the technical field of genetic engineering. A cellulose incision enzyme gene and a cellulose excision enzyme gene are transferred into pichia pastoris engineering bacteria. The preparation method comprises the following steps: respectively inserting a cellulose incision enzyme gene and a cellulose excision enzyme gene into plasmids to construct expression vectors; transferring the expression vector into a competent cell of pichia pastoris GS115; and screening and identifying to obtain successfully transformed pichia pastoris engineering bacteria. According to the present invention, the pichia pastoris heterologous expression cellulose incision enzyme and cellulose excision enzyme are adopted to construct the pichia pastoris engineering strain capable of degrading the plant straw into the cellooligosaccharide / disaccharide, such that the reliable chassis strain is provided for the production of the starch from the cellulose;
Owner:SHANDONG UNIV

Microcapsule preparation containing origanum vulgare essential oil as well as preparation method and application of microcapsule preparation

The invention belongs to the field of animal feed additives, and particularly relates to a microcapsule preparation containing origanum vulgare essential oil as well as a preparation method and application of the microcapsule preparation. The preparation method of the microcapsule preparation containing origanum vulgare essential oil comprises the following steps: S1, dissolving modified beta-cyclodextrin and modified starch in water to obtain a wall material solution; s2, uniformly mixing oregano essential oil to prepare a core material solution, and dissolving an emulsifier in the core material solution to form an oil phase; s3, mixing the wall material solution with an oil phase, and homogenizing to obtain a solution A; and S4, adding a stabilizer into the solution A, uniformly mixing, and spray-drying to obtain the microcapsule preparation containing the origanum vulgare essential oil. The oregano essential oil entrapped microcapsule preparation is prepared by adopting the modified beta-cyclodextrin as a wall material and the modified montmorillonite as a stabilizer, so that the stability and the entrapment efficiency of the oregano essential oil are remarkably improved, the intestinal targeted release of the oregano essential oil is also realized, and the growth and development of animals are promoted.
Owner:HUNAN MODERN RESOURCES AGRI TECH CO LTD

A method for extracting a raw flavor high oleic peanut oil

The present application relates to the technical field of peanut oil extraction, and particularly relates to a method for extracting peanut oil with high oleic acid and original flavor, comprising the following steps: S1, screening: screening the peanut raw material subjected to peeling treatment by using a vibrating screening device to screen out impurities in the peanut raw material, so as to obtain peanut raw material; S2, pretreatment: sequentially subjecting the screened peanut raw material to three-stage low-temperature gradient drying, and using infrared auxiliary dehydration, and controlling the total water content at 3%-4%; the method for extracting peanut oil with high oleic acid and original flavor, by adding starch-chitosan composite liquid, the starch-chitosan composite liquid is compounded by natural ingredients and strengthened by nano structure, realizing multiple functions of antioxidation, bacteriostasis and physical barrier, while retaining the original flavor of peanut oil, significantly improving the stability of oleic acid, and having clear technical effect and industrialization potential.
Owner:QINGDAO WUHAO VEGETABLE OIL CO LTD

Starch pore-enlarging type high-chlorine-capacity long-acting high-temperature dechlorinating agent and preparation method thereof

The invention relates to a starch pore-enlarging type high-chlorine-capacity long-acting high-temperature dechlorinating agent and a preparation method thereof, and belongs to the technical field of dechlorinating, the starch pore-enlarging type high-chlorine-capacity long-acting high-temperature dechlorinating agent comprises the following raw materials: complexing coating calcium hydroxide, modified hydroxyapatite, a composite inorganic adhesive, reinforcing and toughening whiskers, a composite pore-forming agent, a composite synergist, nano calcium carbonate and water; according to the starch reaming type high-chlorine-capacity long-acting high-temperature dechlorinating agent obtained by the invention, the breakthrough chlorine capacity is 40.9 to 44.9 percent, the crushing strength is 139 to 151N. Cm <-1 >, and the abrasion rate is 0.8 to 1.5 percent.
Owner:WEIFANG UNIV OF SCI & TECH +1

Natural aldehyde-functionalized all-biomass aerogel and preparation method thereof

A natural aldehyde-functionalized all-biomass aerogel and a preparation method thereof, the method comprises: (1) dispersing chitosan in a starch-like fiber solution and stirring to obtain a uniform mixed solution; (2) adding genipin as a crosslinking agent to the mixed solution obtained in step (1), heating and stirring for a period of time to obtain an aerogel precursor solution, and allowing the same to stand to undergo crosslinking to obtain a hydrogel; (3) freezing the hydrogel obtained in step (2), and then freeze-drying to obtain an aerogel; (4) soaking the aerogel obtained in step (3) in a natural aldehyde solution for graft modification, then removing and rinsing, and subsequently drying to obtain the aldehyde-functionalized aerogel.
Owner:JIANGNAN UNIV

Ploretin derivative and application of phloretin derivative in preparation of medicine for treating diabetes and complications of diabetes

The invention discloses a phloretin derivative and application of the phloretin derivative in preparation of a medicine for treating diabetes and complications thereof, and relates to the technical field of small molecule medicines. The structure of the phloretin derivative is shown in the specification. Compared with existing phloretin (unmodified) and a clinically common alpha-glucosidase inhibitor (such as acarbose), the phloretin derivative obtained through structural modification can more efficiently inhibit the activity of alpha-glucosidase, further more effectively delays decomposition and absorption of starch substances, has a better stable regulation effect on postprandial blood sugar, and can be used for preparing the phloretin derivative. The core problem that the existing phloretin inhibitory activity is insufficient is solved.
Owner:THE FIRST HOSPITAL OF HUNAN UNIV OF CHINESE MEDICINE (CLINICAL RES INST OF TRADITIONAL CHINESE MEDICINE)

Amyloid-like protein mediated long-acting metal organic framework antifouling agent as well as preparation method and application thereof

The invention discloses an amyloid-like protein mediated long-acting metal organic framework antifouling agent as well as a preparation method and application thereof. Belongs to the field of marine antifouling material preparation. The anti-fouling agent is based on MOF with an anti-fouling function, and amyloid-like protein is self-assembled on the surface of the MOF to form a compact protective shell layer. According to the preparation method, metal ions and organic ligands react and are connected through coordinate bonds to form an MOF structure, and MOF particles are obtained through centrifugation, collection, precipitation, washing and drying; under the action of a water-soluble organic reducing substance, the protein completely opens a disulfide bond to form an unfolded protein chain, and the protein chain is self-assembled to obtain an amyloid-like protein solution; and placing the MOF particles in an amyloid-like protein solution, and carrying out simple one-step incubation to obtain the amyloid-like protein mediated long-acting metal organic framework antifouling agent. The antifouling agent is prepared by adopting a novel green, high-stability, rapid and efficient mild modification method, and has the advantages of stability, durability, universality and high efficiency.
Owner:NORTHEASTERN UNIV CHINA

Protein / polyphenol composite nanofiltration membrane and application thereof

The invention discloses a protein / polyphenol composite nanofiltration membrane and application thereof, and belongs to the technical field of protein membrane separation. The nano-filtration membrane is formed by modifying an amyloid-like protein film with the thickness of 50-300 nm and the average pore size of 0.4-1 nm by polyphenol and then adhering the amyloid-like protein film to a porous base material, wherein the amyloid-like protein film is formed by unfolding and self-assembling protein under the action of a modifier. The nanofiltration membrane disclosed by the invention can realize efficient selective separation of Mg < 2 + > / Li < + > in salt lake brine with a high magnesium-lithium ratio, has selective separation capacity on mixed anions Cl <-> / SO4 < 2->, can effectively remove heavy metal ions and perfluoro / polyfluoroalkyl compounds in water, and provides an important basis for developing a sustainable and high-performance next-generation membrane separation technology.
Owner:SHAANXI NORMAL UNIV

Degradable preservative film and preparation method thereof

The invention discloses a degradable preservative film and a preparation method thereof. The film takes nano chitosan / agarose in a ratio of 1: 1 as a matrix, contains 0.5-5wt% of PVA (Polyvinyl Alcohol), 1-4wt% of protein powder or starch, 0.2-3wt% of tea polyphenol / carvacrol, 5-20wt% of glycerol and optional 5-15wt% of polylactic acid, and is cross-linked with sodium alginate. And carrying out tape casting at 55-65 DEG C, and carrying out gradient drying at 40-50 DEG C, thereby obtaining the product. The film is compact and flexible, the breaking strength is larger than or equal to 69 MPa, the oxygen permeability is low, the inhibition zone on six germs is enlarged by 3-4 mm, 98% of natural soil is degraded 20 days later, and no toxic smoke is generated during incineration. The biodegradable film is solvent-free in preparation, can be produced by existing equipment, is lower than a traditional biodegradable film in cost, can be in direct contact with food, remarkably prolongs the fresh-keeping period of fruits and vegetables, replaces PE and PVC, and solves white pollution.
Owner:JINLIN MEDICAL COLLEGE

Sugarcane polyphenol and mulberry leaf extract compound raw material and application thereof

The invention discloses a sugarcane polyphenol and mulberry leaf extract compound raw material and application thereof.The sugarcane polyphenol and mulberry leaf extract compound raw material comprises sugarcane polyphenol and mulberry leaf extract, the polyphenol content of the sugarcane polyphenol is larger than or equal to 20%, the DNJ content of the mulberry leaf extract is larger than or equal to 10%, and the concentration of the polyphenol and the DNJ is 0.1-2% after the sugarcane polyphenol and the mulberry leaf extract are compounded; by compounding the sugarcane polyphenol and the mulberry leaf extract, the active and passive transfer effects of glucose in small intestines are effectively blocked, so that the rate of the glucose entering blood is controlled, the blood glucose reaction after carbohydrate food is eaten is reduced, the decomposition and absorption of the intestinal tract to carbohydrates such as starch and disaccharide are delayed, the postprandial blood sugar is stabilized, and the blood sugar content is reduced. By reasonably adjusting the concentration of polyphenols and DNJ in the compound extract to be 0.1-2%, the combination of blocking and dredging can be realized, a synergistic effect is generated, more comprehensive and more stable management of blood sugar is realized, and meanwhile, natural crops are adopted, so that the product quality safety is ensured.
Owner:NANNING XINGJING TECH CO LTD

A beverage with chickpea as a plant protein source and a method for preparing the same

The present application provides a kind of beverage with chickpea as plant protein source and a preparation method thereof.The protein in the prepared chickpea protein beverage is 100% or mainly derived from natural chickpea seeds.No stabilizer, thickening agent and sweetener is added in the product, and the above-mentioned purposes are achieved only by physical processing, enzyme hydrolysis and pH adjustment.The chickpea protein and starch components can be fully utilized, the fullness of the plant protein beverage is improved, and the chickpea protein beverage can still meet the commercial sterile requirements even under the condition of higher protein content.
Owner:SHANGHAI XINGZHIDAI FOOD TECH CO LTD

Low-temperature superfine grinding and quality maintaining system suitable for glutinous rice flour

The invention discloses a low-temperature superfine grinding and quality maintaining process for glutinous rice flour. The process comprises the following steps: pretreatment: cleaning a glutinous rice raw material, atomizing, humidifying and tempering, and pre-cooling after wetting; environment construction: an inert gas circulation environment is constructed in a closed crushing system, the temperature of circulation gas in the system is controlled to be within a first low-temperature interval, and the oxygen concentration is controlled to be below a safety threshold value; graded crushing: feeding the treated raw materials into a crushing system, utilizing low-temperature circulating gas as a conveying medium, enabling the glutinous rice raw materials to sequentially pass through a plurality of crushing areas with gradually-decreased grinding gaps in the airflow direction to be subjected to graded crushing, and taking away heat generated by grinding by utilizing the low-temperature circulating gas; and separating fine powder. The system is high in integration level, the ultrafine glutinous rice flour is uniform and fine in particle size and controllable in broken starch rate through a low-temperature inert gas loop and graded crushing design, the gelatinization characteristic and the gel characteristic of the ultrafine glutinous rice flour are closer to those of raw materials, and the application range is wider.
Owner:BENGBU COLLEGE

Full-degradable PLA (polylactic acid) composite material with ceramic characteristics and preparation method of full-degradable PLA composite material

The invention relates to a fully-degradable PLA composite material with ceramic characteristics and a preparation method thereof. The fully-degradable PLA composite material is prepared from the following raw materials in percentage by weight: 25-45% of PLA, 5-13% of PBS, 48-60% of a filling agent and the balance of a processing aid, the filler is obtained by modifying an inorganic filler through a modifier; the modifier is prepared from methyl hydrogen-containing polysilazane and a bio-based maleic anhydride graft; the bio-based maleic anhydride graft is a composition of one or more of maleic anhydride grafted poly (butylene adipate-co-terephthalate), maleic anhydride grafted polyvinyl alcohol and octenyl succinic anhydride modified starch. Through the synergistic effect of the inorganic components of the filling agent, the proportion of PLA / PBS and the modifier, the filling agent has the advantages that the filling effect is good; the material is matched with the use requirement of the ceramic flying saucer on key indexes, and all components have bio-based or degradable characteristics, so that the dual targets of'ceramic performance bionics' and'environment-friendly controllable degradation 'are achieved.
Owner:GUANGDONG LIMEI NEW MATERIAL TECH CO LTD

Preparation method of degradable preservative film

The invention belongs to the technical field of degradable packaging materials, and discloses a preparation method of a degradable preservative film. The anti-fog antibacterial plastic is prepared from the following raw materials in parts by weight: 40 to 45 parts of poly (butylene adipate-co-terephthalate) (PBAT), 8 to 12 parts of polylactic acid (PLA), 28 to 32 parts of modified structural starch, 4 to 6 parts of poly (butylene carbonate) (PBC), 4 to 6 parts of talcum powder, 0.4 to 0.6 part of aluminate, 0.8 to 1.2 parts of a composite antibacterial agent and 2.5 to 3.5 parts of anti-fog master batch. The invention aims to overcome the defects in the prior art, and provides the degradable preservative film and the preparation method thereof, the preservative film not only has good degradability and mechanical properties, but also has excellent antibacterial and antifogging effects, and the preparation process is simple and easy for industrial production.
Owner:JIANGYIN CITY DEHUI HEAT SHRINKABLE PACKING MATERIAL

Preparation method of highland barley prefabricated powder with low glycemic index and application of highland barley prefabricated powder in 3D printing food

The invention discloses a preparation method of highland barley prefabricated powder with a low glycemic index and application of the highland barley prefabricated powder in 3D printed biscuits. According to the method, firstly, cellulase and alpha-amylase are adopted for carrying out enzymatic modification treatment on highland barley flour, the content of anti-digestion starch (RS) is remarkably increased, the content of fast-digestion starch (RDS) is reduced, and therefore the modified highland barley flour with the predicted glycemic index (pGI) reaching the low-GI food standard (GI is smaller than or equal to 55) is prepared, and the dietary requirements of people with different metabolic requirements are met. Further, the modified highland barley powder is compounded with sodium alginate, glutamine transaminase is utilized for inducing and constructing a protein-polysaccharide gel network, the incubated and cross-linked dough is subjected to freeze drying and smashing, and the highland barley prefabricated powder with the low glycemic index is obtained.The 3D printing adaptability, the structural stability and the digestion resistance of the material are effectively enhanced through the method. The highland barley biscuit has the characteristic of low glycemic index, and is suitable for making healthy food for special crowds with diabetes and the like.
Owner:ZHEJIANG UNIV OF TECH

Reverse design method for microstructure of starch hydrogel

The invention provides a reverse design method of a starch hydrogel microstructure, and belongs to the technical field of computer material science. A standardized data set is constructed by collecting different starch hydrogel microstructure images and corresponding target performance index vectors. And constructing a starch hydrogel microstructure reverse generation model, and establishing nonlinear mapping between a macroscopic mechanical property index and a microscopic topological structure in combination with a multi-scale self-attention mechanism and a double-flow physical consistency identification strategy. Meanwhile, a differentiable physical performance prediction agent model and a multi-dimensional physical consistency coupling loss function are designed, adversarial iterative optimization under physical constraints is executed, and a prediction physical performance vector of a generated structure is forced to strictly approach a target performance index vector through a self-supervised feedback closed loop. According to the method, accurate anchoring of the generated structure on the mechanical property is achieved, design scheme recommendation and morphological quantitative analysis based on confidence are provided, and the intelligent level and scientificity of bio-based material design are improved.
Owner:OCEAN UNIV OF CHINA

Preparation method and application of biomass environment-friendly adhesive based on longan shells

The invention belongs to the technical field of biomass materials and environment-friendly adhesives, and relates to a biomass adhesive, in particular to a preparation method of a biomass environment-friendly adhesive based on longan shells, which comprises the following steps: firstly, cleaning, drying, crushing and screening the longan shells for pretreatment, and then carrying out alkalization and acetylation chemical modification to obtain the biomass environment-friendly adhesive based on the longan shells. And finally, compounding with gelatinized starch, a chitosan acetic acid solution and citric acid, and adjusting the viscosity to obtain the adhesive. The waste longan shells are used as raw materials, agricultural waste recycling is achieved, the product is free of formaldehyde release and biodegradable, and the viscosity of the prepared adhesive is 1000-2000 mPa.s at the temperature of 25 DEG C and is measured through a rotary viscometer; the wood-wood bonding strength is larger than or equal to 2.5 MPa, the 24-hour water absorption rate is smaller than or equal to 25%, the problems that a traditional biomass adhesive is short in performance and low in cost, special equipment is not needed for preparation are solved, the adhesive is suitable for the industrial fields of artificial board manufacturing, furniture manufacturing and the like, and environment-friendly transformation of the adhesive industry is promoted.
Owner:FUJIAN AGRI & FORESTRY UNIV