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3600 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.

AI-based euryale ferox processing process quality control system

An AI-based euryale ferox processing process quality control system of the present invention belongs to the technical field of food processing and quality control, and comprises a quality perception quantification module used for carrying out real-time nondestructive detection on a material unit entering a processing flow, and determining the quality of the material unit through a pre-established chemometrics model. The system comprises a material unit acquisition module for acquiring original spectrum data, a quality dynamic evolution prediction module for analyzing and quantifying the acquired original spectrum data into an initial starch crystallinity index, and a quality dynamic evolution prediction module for predicting a quality evolution track of the material unit in future processing time through a dynamic evolution prediction model based on the initial starch crystallinity index, a current quality state and real-time process parameters. According to the method, different processing paths can be predictively planned for materials with different characteristics, so that disturbance caused by heterogeneity of the raw materials is effectively overcome.
Owner:FANGJIAPUZI PUTIAN GREEN FOOD +1

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

Plant-source nutritional supplement based on glycoside compounds and preparation method of plant-source nutritional supplement

The invention discloses a plant-source nutritional supplement based on glycoside compounds and a preparation method thereof, and relates to the technical field of preparation of plant-source nutritional supplements.The preparation method comprises the steps that raw materials are prepared; the preparation method comprises the following steps: respectively carrying out ultrasonic-assisted extraction on flavonoid glycoside, saponin and geniposide raw materials to obtain an extracting solution; carrying out centrifugal separation on the extracting solution, taking supernate, and then purifying by adopting a macroporous resin adsorption method to obtain a purified glycoside compound solution; mixing the purified glycoside compound solution with lycium barbarum polysaccharide, Chinese yam starch, vitamin E and other auxiliaries in proportion, and uniformly stirring to form a mixed solution; carrying out spray drying on the mixed solution to obtain a powdery nutritional supplement; and screening the powdery nutritional supplement. The high-purity plant source glycoside compound and the functional auxiliary agent are scientifically compounded, and ultrasonic extraction, resin purification and precise process control are combined, so that the integrated improvement of activity synergy, quality stability and personalized scene adaptation of the nutritional supplement is realized.
Owner:HUBEI BOHAI BIO-HOLDING GROUP CO LTD

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

Soybean amyloid protein fiber, preparation method thereof, high internal phase emulsion and application

The invention provides a soybean amyloid protein fiber, a preparation method thereof, a high internal phase emulsion and application, and belongs to the technical field of protein fibers. The preparation method comprises the following steps: dissolving soybean protein isolate in water, adjusting the obtained soybean protein isolate solution to a first pH value, carrying out ultrasonic treatment and / or first stirring treatment, adjusting the obtained feed liquid to a second pH value, sequentially carrying out second stirring treatment, dialysis and freeze drying, and dissolving the obtained pretreated soybean protein isolate in water, adjusting the pH value of the pretreated soybean protein isolate solution to a third pH value, and sequentially performing hydration treatment and fiber growth treatment to obtain the soybean amyloid protein fiber. The invention provides a soybean amyloid protein fiber preparation method based on ultrasonic pretreatment and / or pH migration pretreatment. The yield and the emulsifying property of the obtained soybean amyloid protein fiber can be remarkably improved.
Owner:ZHEJIANG UNIV

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

Phenolic resin-based hard carbon microsphere material as well as preparation method and application thereof

The invention discloses a phenolic resin-based hard carbon microsphere material as well as a preparation method and application thereof. The hard carbon microsphere material is synthesized through high-temperature carbonization of a block copolymerization cross-linked network of phenolic resin and natural starch. The phenolic resin provides a highly cross-linked carbon network, and the addition of the starch regulates and controls the internal pore structure of the microsphere material, so that the obtained hard carbon material has appropriate carbon layer spacing and optimized surface defects. Besides, by reasonably controlling a carbonization process, the material can form a rich closed pore structure, so that the problem of volume expansion in the embedding / de-embedding process of sodium ions is effectively relieved, and the cycling stability and the sodium storage capacity of the material are improved. The method is easy to expand and suitable for large-scale production, the used raw materials are cheap and easy to obtain, and the method has the remarkable cost advantage. Meanwhile, excellent electrochemical performance can be achieved, and the material is suitable for being applied to negative electrodes of large-scale energy storage devices and has wide industrial application prospects.
Owner:ZHEJIANG UNIV

Road and bridge interface high-bonding mortar and preparation method thereof

The invention relates to the field of maintenance engineering materials, in particular to road and bridge interface high-bonding mortar and a preparation method thereof. The road and bridge interface high-bonding mortar is prepared from the following raw materials in parts by mass: 90 to 120 parts of gel material, 100 to 150 parts of aggregate, 30 to 45 parts of auxiliary emulsion, 10 to 18 parts of composite powder, 3.5 to 7 parts of reinforcing agent, 0.5 to 1 part of water reducing agent, 0.3 to 0.6 part of cellulose ether, 0.2 to 0.3 part of starch ether, 0.8 to 1.5 parts of thixotropic agent, 0.3 to 0.6 part of defoaming agent and 20 to 40 parts of water. The finally prepared road and bridge interface bonding mortar can maintain excellent durability, environmental weather resistance and anti-erosion effect while ensuring high-strength bonding performance, so that the mortar requirements of more existing complex construction environments are met.
Owner:HUBEI ZHONGNAN ROAD&BRIDGE CO LTD

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

High-deformability ceramic core with compact surface and porous core structure and preparation method of high-deformability ceramic core

The invention discloses a high-deformability ceramic core with a compact surface and a porous core structure and a preparation method of the high-deformability ceramic core. The ceramic core is formed by compounding a ceramic core with the porous core structure and a compact inert coating on the outer surface of the ceramic core, the ceramic core with the porous structure at the core part comprises the following substances in percentage by weight: 42 to 51 percent of ceramic powder component, 35 to 40 percent of hollow glass bead component, 4 to 9 percent of fiber component, 3 to 7 percent of graphite and 2 to 8 percent of starch; and the densified inert coating comprises the following substances in percentage by weight: 67 to 75 percent of sol component and 25 to 33 percent of nano powder component. The preparation method comprises the following steps: preparing a core porous structure ceramic core and densified inert coating slurry; and the ceramic core with the porous structure at the core part is impregnated with the densified inert coating slurry under sectional vacuum pressure in a gradient pressure reduction manner, and then is put into a heat treatment furnace for sintering treatment. The prepared ceramic core has excellent deformability, the problem of blade hot cracking can be solved, interface reaction can be avoided through the inert coating, and efficient depoling is facilitated through the porous structure of the core.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS

Method for preparing various bioactive peptides based on bean dreg fermentation and application thereof

The invention discloses a method for preparing various bioactive peptides based on bean dreg fermentation, which comprises polypeptides with alpha-glucosidase inhibitory activity, angiotensin converting enzyme inhibitory activity and antioxidant activity, and belongs to the field of microbial biological fermentation. Bacillus amyloliquefaciens sourced from fermented soybeans is used for fermentation, and a mixed product with alpha-glucosidase inhibitory activity, angiotensin converting enzyme inhibitory activity and antioxidant activity is obtained. The invention also provides a method for purifying the polypeptide with alpha-glucosidase inhibitory activity, angiotensin converting enzyme inhibitory activity and antioxidant activity, which is characterized in that the mixed product is purified by combined column chromatography, the combined column chromatography comprises cation exchange resin LXP-01, macroporous adsorption resin HP20, weak base anion exchange resin D941, silica gel resin and Sephadex LH-20. The invention also discloses seven bioactive peptides with biological activity, the amino acid sequences are CKLLL, APGYSC, FPKYG, FPGPLV, FPRSH, FMAV and SVCC, and the bioactive peptides have good alpha-glucosidase inhibitory activity, angiotensin converting enzyme inhibitory activity and antioxidant activity, and can be used for producing functional foods, health care products, cosmetics and the like for assisting in reducing blood sugar, reducing blood pressure, resisting oxidation and the like.
Owner:BEIJING TECH & BUSINESS UNIV

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

Propolis ethanol extract loaded ZIF-8 cellulose starch-based sustained-release membrane and preparation method thereof

The invention discloses a propolis ethanol extract loaded ZIF-8 cellulose starch-based sustained-release film and a preparation method thereof, and belongs to the technical field of food preservative films. The propolis ethanol extract loaded ZIF-8 cellulose starch-based sustained release membrane is prepared from the following raw materials in parts by weight: 30 to 70 parts of starch, 30 to 70 parts of cellulose nanofiber, 7.5 to 17.5 parts of glycerol and 4 to 8 parts of filler. The starch wastewater is used as a starch raw material source, and the cellulose nanofibers loaded with ZIF-8 by the propolis ethanol extract are added, so that the prepared slow-release film is high in strength and good in toughness, can be naturally degraded after being used, reduces environmental pollution, ensures the safety of the product, has antibacterial and antioxidant effects, provides benefits for fresh keeping of fruits, and has a wide application prospect. Meanwhile, a new thought is provided for resource utilization of the starch wastewater.
Owner:YUNNAN UNIV

A kind of organic phosphonic acid betaine and preparation method thereof

The present invention provides an organic phosphonic acid betaine and a preparation method thereof, specifically an ammonium phosphonic acid betaine containing a glycidyl group. The organic phosphonic acid betaine can be used as a functional monomer for free radical grafting modification of the surface of a polymer material such as polyolefin, or can be mixed with acrylate, acrylonitrile or other olefin monomers for copolymerization to prepare an amphoteric ionomer. The organic phosphonic acid betaine can also be used for ring-opening grafting modification of polymer materials such as starch, cellulose, polyurethane, and polyamide containing amino or hydroxyl groups in their structures. At the same time, the phosphonic acid betaine imparts functional effects such as zwitterionization, hydrophilicity, antibacterial properties, and antifouling properties to the obtained polymer material. The organic phosphonic acid betaine also has high chemical stability in acidic and alkaline water environments.
Owner:JIANGSU OCEAN UNIV

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

Bio-based fluoride-free environment-friendly oil-proof agent for food packaging paper and paperboard

The invention relates to the field of food packaging and coatings, and provides a bio-based fluoride-free environment-friendly oil-proof agent for food packaging paper and paperboards, which is simple in preparation process, green and environment-friendly and has the bio-based raw material proportion of 70% or above. The bio-based fluoride-free environment-friendly oil-proof agent is characterized in that the bio-based fluoride-free environment-friendly oil-proof agent is prepared by synergistic micro-nanocrystallization of paper pulp fibers, starch and inorganic particles under the action of high-speed shearing and grinding; the prepared oil-proof agent can be coated on the surfaces of sized or unsized paper, paperboards and paper pulp molded products by a conventional coating method, the coated finished product has good oil-proof performance, the coating weight is 1.5-15g / m < 2 >, and the oil-proof grade tested by a Kit method after drying can reach 12 grade to the maximum. Compared with a fluoride-free oil-proof agent on the market at present, the bio-based fluoride-free environment-friendly oil-proof agent disclosed by the invention can obtain good oil-proof performance under a relatively low coating weight, is biodegradable and is easy to recycle and reuse.
Owner:CHINA NAT PULP & PAPER 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

Bacillus amyloliquefaciens strain yp2 and application thereof

The application discloses a bacillus amyloliquefaciens YP2 and application thereof, and relates to the technical field of microbial food fermentation. The bacillus amyloliquefaciens YP2 is preserved in the China General Microbiological Culture Collection Center, 1, Xibei Road, Beichen, Chaoyang District, Beijing, and the preservation time is November 27, 2023, the preservation number is CGMCC No. 29157, and the classification and naming is bacillus amyloliquefaciens. The 16S rDNA sequence is shown as SEQ ID NO. 1. The application adopts the bacillus amyloliquefaciens YP2 and application thereof, and the total phenol content of the obtained fermentation liquor is increased, the fermentation liquor has the functions of reducing blood sugar and antioxidant activity, and can be widely applied to the preparation of blood sugar reducing drugs.
Owner:BEIJING TECH & BUSINESS UNIV

Preparation method of mixture of sorghum starch and caffeic acid

PendingCN120718161ABiotechnologyFreeze-drying
The invention relates to a preparation method of a mixture of sorghum starch and caffeic acid. The preparation method is characterized by comprising the following steps: mixing water, sorghum starch and caffeic acid to prepare a sorghum starch-caffeic acid mixed solution; then carrying out microblog treatment on the sorghum starch-caffeic acid mixed solution; after the treatment is finished, cleaning with an ethanol solution to remove free caffeic acid components in a reaction system, and centrifuging to take white precipitate at the lower layer; and freeze-drying to obtain a mixture of sorghum starch and caffeic acid. The SS-CA compound provided by the invention has a more stable gel continuous phase in the aging process. At the same aging time point, the moisture distribution of the SS-CA composite system has a lower free water peak area proportion, and the moisture retention capability is improved.
Owner:ANHUI AGRICULTURAL UNIVERSITY

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

Agricultural ecological probiotic complex microbial inoculant and processing method thereof

The invention relates to the technical field of microbial fermentation, and discloses an agricultural ecological probiotic complex microbial inoculant, which is prepared from the following components in percentage by mass: 30 to 35 weight percent of beneficial microbial inoculant, 20 to 25 weight percent of mineral source potassium fulvate, 15 to 20 weight percent of slow release agent, 10 to 15 weight percent of nano polypeptide fermentation liquor and the balance of carrier, the processing method comprises the following steps: S1, pretreating the raw materials; s2, preparing nano polypeptide fermentation liquor; s3, complex microbial inoculants are compounded; and S4, drying and forming. According to the invention, the mineral source potassium fulvic acid and the nano-polypeptide fermentation liquor are added, so that effective regulation and control of soil micro-ecology are realized; crop growth is promoted through cooperation of multiple strains, growth hormone is secreted through bacillus subtilis and the like, nitrogen is fixed through bacillus amyloliquefaciens, root development is stimulated in cooperation with mineral source potassium fulvic acid, and the plant height, stem diameter and fresh weight of crops are remarkably increased; the particle size of the polypeptide subjected to high-pressure homogenization treatment is 80-120nm, the absorption efficiency is improved by 60%, and a crop disease-resistant signal channel is activated.
Owner:WUZHAI YIKANG AGRI PROD DEV CO LTD