38 results about "Starch glycerite" patented technology

The invention relates to probiotic microcapsules as well as a preparation method and application thereof. The probiotic microcapsules comprise a core material and a wall material, wherein the core material is probiotics; the outer layer of the wall material is coated with chitosan; the wall material is prepared from an aqueous solution containing a natural polymer material and a freeze-drying protection agent; the freeze-drying protection agent comprises one or more of glucose, fructose, sucrose, lactose, trehalose, soluble starch, glycerin, mannitol, Arabic gum, dextran 40 and skim milk; the natural polymer material comprises one or more of gellan gum, xanthan gum, k-carrageenan, sodium alginate, cellulose acetate phthalate or gelatin; in the aqueous solution, the volume fraction of the freeze-drying protection agent is 4.0%-20.0% and the volume fraction of the polymer material is 0.5%-5.0%. The probiotic microcapsules can keep excellent acid resistance and storage stability before and after being freeze-dried.

The invention discloses a purple potato starch edible film and a preparation method thereof. The edible film comprises the following components in percentage by weight: 20-90 percent of dry-heat modified purple potato starch, 0.1-30 percent of glycerinum and 0.1-20 percent of sodium alga acid. The method comprises the steps of preparing the dry-heat modified purple potato starch and forming the film. The technology is simple, safe, low in cost and pollution-free. The edible film prepared by the preparation method and disclosed by the invention is relatively high in plasticity, and the plasticity of the edible film is the same as that of a common plastic bag; meanwhile, the edible film is relatively good in water resistance and can adapt to food with large water content; particularly the transparency of the film is obviously superior to that of other edible films and is up to over 90 percent; the edible film has application value in fruit and vegetable coating preservation and food antibacterial package.

The invention relates to low-fat nourishing paste for a pet, as well as a preparation method and application thereof. The nourishing paste is prepared from the following raw materials: chicken liver powder, chicken breast powder, starch, glycerin, maltitol, a vitamin component, a mineral component, vegetable oil and an emulsifier. The preparation method comprises the following steps: adding water into the chicken liver powder, the chicken breast powder, the emulsifier and the vegetable oil for uniform stirring, performing homogenization treatment to obtain a uniform and fine liver-meat size, and uniformly mixing the uniform and fine liver-meat size and the other raw materials; performing filling. The nourishing paste is reasonable in formula, high in nutrient content and palatability, more importantly, low in fat content, healthy, safety, stable in apparent condition and easy for the pet to digest, absorb and utilize. An experiment shows that the pet eating the low-fat nourishing paste is kept stable in weight and the health conditions such as the mental state, the fur state and the defecation condition are remarkably improved.

The invention relates to biodegradable and photodegradable calcium plastic starch resin sheets, which are prepared by the following steps: (1) placing starch, glycerol and water into a high-speed mixer, stirring for 0.5 to 2 hours under a condition that the temperature is 140 to 160 DEG C, and obtaining plastic starch; and (2) placing the plastic starch, polyolefine resin and calcium carbonate, adding a proper amount of aid, uniformly mixing in the high-speed mixer, extruding in a double-screw extruder, and obtaining calcium plastic starch resin sheets with different thicknesses by rolling and cooling. The calcium plastic starch resin sheets prepared by the invention have high bursting strength, high tear strength and high pressure strength, can be subjected to chromaticity printing, have high naturally degradability, are biodegradable and photodegradable, can be recycled and are environment-friendly.

The invention provides a mulching film prepared by utilizing rice straw and a preparation method thereof and relates to the field of crop straw utilization. The mulching film comprises, by weight, 60-80% of rice straw fiber, 10-30% of waste silk fiber, 1-3% of biological organic fertilizer, 3-10% of polyvinyl alcohol, 1-5% of corn starch, 1-3% of glycerin, 1-3% of sorbitol fatty acid ester and 0.1-0.5% of mineral. The preparation method includes following steps: preparing the rice straw fiber; treating the waste silk fiber; performing nonwoven networking; bonding and curing. The mulching filmhas high strength and air permeability and is degradable, a lot of cellulose after degradation can play a role in improving soil, and utilization value is increased.

The invention discloses a high-molecular soluble microneedle and a production method thereof. The high-molecular soluble microneedle is composed of a needle body and a substrate; the needle body is composed of hyaluronic acid, polyglutamic acid, tremella polysaccharide, vitamin C ethyl ether, oligopeptide-1, oligopeptide-3, oligopeptide-5, cannabidiol, arbutin, rhodiola rosea extract, vitamin E, ginseng extract, radix sophorae flavescentis extract, pseudo-ginseng extract, rose essential oil, trehalose, polyvinyl alcohol, polyvinylpyrrolidone, soluble starch, glycerol and water; and the substrate is composed of polyvinyl alcohol and water. The production method of the microneedle comprises the following steps: weighing the components in parts by weight, respectively carrying out vacuum stirring dissolution on the components of the needle body and the substrate, carrying out high-pressure molding on the needle body part through a mold and a high-pressure device, coating the mold with a vacuum stirring dissolution solution of the substrate, and carrying out freeze drying to obtain the microneedle. The product is good in penetrability, safe, reliable and convenient to use; the production method is simple, time-saving and high in feasibility.

The invention discloses an enzymatically modified starch-glyceride compound and a preparation method thereof, and belongs to the technical field of agricultural product processing. Starch and glyceride are used as raw materials, a maltogenic amylase transglycosylation assisted pullulanase debranching technology is adopted, the chain length distribution of corn starch is changed, the release amount of linear starch chains capable of participating in a complexation reaction in a gelatinization system is increased, and formation of a corn starch-glyceride compound is promoted. The defects that a traditional physical method is low in complexing index and a chemical method is not safe are overcome, the method has the advantages of being efficient and safe, and the prepared enzymatically-modified starch-glyceride compound is high in digestion-resistant starch content, good in enzymolysis resistance, high in heat stability and good in application prospect in the field of food processing.

The invention discloses a preparation method and application of a biodegradable antioxidant fruit and vegetable preservative film, and belongs to the field of biodegradable food film processing. The preparation method of the fruit and vegetable preservative film comprises the following steps: mixing the starch, the glycerol, the organic modified montmorillonite and the quercetin to obtain modified powder, mixing the modified powder with the PBAT, granulating to obtain composite granules, and blow-molding to obtain the biodegradable antioxidant fruit and vegetable preservative film. The fruit and vegetable preservative film prepared by the method takes PBAT and starch as matrix materials, all the raw materials are biodegradable materials, and the waste materials can be treated in manners of composting, soil landfill and the like, so that the fruit and vegetable preservative film is green and environment-friendly, conforms to the concept of sustainable development, and has the advantages of strong mechanical property, high barrier property, good oxidation resistance, good fresh-keeping property, greenness, environmental protection and no toxicity.

The invention relates to ecological artificial bait for tuna longline and a preparation method therefor. The bait contains the following main constituent materials: a bait skeleton and bait film coating (outer coating) materials, wherein the bait skeleton is prepared from artificial or natural, degradable and harmless materials, and the density of the materials is higher than that of sea water, and the bait film coating (outer coating) materials contain adjuvants such as polyvinyl alcohol (PVA), polycaprolactone (PCL), poly(butylene succinate) (PBS), aliphatic polycarbonate (APC), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), styrene-ethylene / butadiene-styrene copolymer (SEBS), sodium alginate (SA), hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), protein, amino acid, starch, glycerine and cane sugar, as well as a fish luring agent, a coloring agent, an illuminating agent and the like. A film coating, which is proper in material density and has good dispersing and fish luring agent slow-releasing capacity, can be prepared through mixing the film coating materials at a proper ratio; and the ecological artificial bait is ideal in rigidity, toughness and weather resistance, excellent in mechanical properties, breakage resistance and tear resistance and easy to operate, transport and store. The novel ecological artificial bait can be prepared by a simple process and has a very good simulated effect, thereby being capable of replacing the traditional fresh bait.

The invention relates to the technical field of sausage casing production, in particular to a small-caliber plant sausage casing and a preparation process thereof. The caliber of the small-caliber plant sausage casing is generally smaller than phi 18. The adopted glue solution comprises the following raw materials, by mass: 1 to 10 percent of sodium alginate, 0.2 to 2.0 percent of microcrystallinecellulose, 0.05 to 0.5 percent of sodium carboxymethyl cellulose, 0.1 to 2 percent of starch, 0.1 to 1 percent of glycerinum and the balance being water. In the sodium alginate, the ratio of the highG type sodium alginate to the high M type sodium alginate is 1: 3-1: 5. The small-caliber plant sausage casing has excellent compression strength, tensile strength and elongation at break; after thesmall-caliber plant sausage casing is applied to sausage filling, the wrapper and stuffing are well combined, and the quality is stable. The invention also provides a simple and feasible preparation process of the small-caliber plant casing.

The invention relates to the clone of a novel glycerol dehydratase activating factor gene and the expression thereof in related host. The activating factor gene, cloned from clostridium perfringens, can activate an inactive glycerol dehydratase under normal biochemical reaction conditions and recover the enzyme activity of the glycerol dehydratase, and can also enable the glycerol dehydratase to be difficult to be inactivated when the glycerol dehydratase is transformed to glycerin in the reaction. On the basis of the invention, related enzyme genes, such as the glycerol dehydratase, 1, 3-propanediol oxidoreductase, can be restructured to colon bacillus so as to get novel metabolic engineering bacteria. The metabolic engineering bacteria transform starch, glycerin or glucose to 1, 3-propanediol through fermentation.

A biodegradable, biocompatible and non-toxic material is disclosed, which may be used to isolate and / or to protect a product from the environment, wherein said material comprises a matrix composed by starch, glycerol and starch nano-crystals dispersed in said matrix. The material may be used in the form of foils, sheets, films, coatings, gels, etc, to isolate and / or to protect a product from the environment. The material may be used to isolate and or to protect food, pharmaceutical, cosmetic and cleaning products.

The invention relates to a microcrystalline cellulose and polycaprolactone reinforced starch-based full-biodegradable blending material and a preparation method thereof. The microcrystalline cellulose and polycaprolactone reinforced starch-based full-biodegradable blending material comprises the following components in parts by weight: 100 (as a base number) of starch, 0.1-10 of microcrystalline cellulose, 1-100 of polycaprolactone, 0.1-10 of coupling agent, and 10-50 of glycerol. The preparation method comprises the steps: dispersing microcrystalline cellulose; refining the starch; drying polycaprolactone; evenly mixing microcrystalline cellulose and the refined starch; evenly mixing microcrystalline cellulose and the refined starch, polycaprolactone and the coupling agent; and pelletizing to obtain granules. The starch-based blending material reinforced by microcrystalline cellulose and polycaprolactone is tripled obviously in tensile strength, has excellent mechanical property and full-biodegradation property, is simple in raw materials, and convenient to prepare, and can be used for producing various materials and be widely applied in the field of degradable plastics.

The invention discloses a starch-based fully-degradable PBAT master batch capable of being mixed for use and a preparation method and an application thereof. The starch-based fully-degradable PBAT master batch comprises the following components in percentage by mass: 30-50% of starch, 5-15% of glycerol, 40-60% of PBAT, 1-5% of a heat stabilizer, 0.1-1% of a lubricant, 1-5% of an auxiliary plasticizer, 0.1-0.5% of an antioxidant and 0.1-0.5% of a chain extender. The starch is plasticized by adding glycerol, an auxiliary plasticizer and the like, so that the starch has the possibility of thermoplastic processing; the bio-based material starch is introduced on the basis of the whole bio-based biodegradable material PBAT, the requirement of complete degradation is met after composite modification, meanwhile, the mechanical property of the bio-based PBAT resin is enhanced, and the cost is reduced; the starch-based fully-degradable PBAT master batch prepared by the invention can be mixed with a PBAT raw material and diluted for direct film blowing use, and extrusion secondary granulation is not needed, so that the processing cost of the plastic can be effectively reduced, the comprehensive cost of the plastic is low, and the product is more beneficial to market promotion.

The invention discloses a method for producing chitinase through fermentation of chaetomium globosum and application of the chitinase. According to the method, chaetomium globosum HY1 is adopted for strain activation, an activation culture medium comprises glucose, peptone, monopotassium phosphate and disodium hydrogen phosphate, then shake cultivation or fermentation tank cultivation are carriedout, a fermentation medium comprises soluble starch, glycerin, tryptone, yeast powder, corn steep liquor, NH4NO3, MnSO4, MgSO4, Na2HPO4, K2HPO4 and colloidal chitin, and chitinase produced through fermentation is used for preparing chitosan oligosaccharide. The culture method is simple, the nutritional requirement is not high, and the chitinase produced by liquid state fermentation is high in activity and has a relatively great industrial application value.

The invention discloses a bacteriostatic biodegradable plastic film and a preparation method thereof, and belongs to the technical field of biodegradable films. The bacteriostatic biodegradable plastic film comprises the following raw materials: degradable plastic, starch, glycerol, modified triclosan and oleamide; the preparation method of the antibacterial biodegradable plastic film comprises the following steps: (1) uniformly mixing degradable plastic, starch, glycerol, modified triclosan and oleamide with different contents to obtain a premix; (2) mixing, melting, extruding and granulating the premix to obtain biodegradable antibacterial plastic particles; (3) preparing the biodegradable antibacterial plastic particles into an antibacterial and biodegradable plastic film through a blow molding process, and modifying triclosan by using tetraethoxysilane and an alkaline amino coupling agent, so the bactericidal property and migration resistance of triclosan are improved, the dispersion of starch in the degradable plastic is facilitated, and the mechanical and antibacterial properties of the film are optimized.

The invention discloses a high-activity probiotic product with a gastrointestinal tract regulating function and a preparation method thereof. The high-activity probiotic product with the gastrointestinal tract regulating function is composed of an anti-gastric acid protective layer, an anti-oxidation layer and a core protective layer. The anti-gastric acid protective layer comprises the following components of hydroxypropyl starch, glycerol, purified water, D-mannitol and an additive in a weight ratio of (80-120): (20-40): (60-150): (4.5-9.5): (2.05-6.1); the weight ratio of the components of the core protective layer is that the weight ratio of the compound probiotic powder to the prebiotics to the plant dry powder or extract is (1-20): (1-30): (1-20); and the weight ratio of the components of the anti-oxidation layer is that the weight ratio of the mono / diglycerol fatty acid ester to the linseed oil is (1-5): (70-99). The invention further discloses a preparation method of the high-activity probiotic product with the gastrointestinal tract regulating function, and the preparation method is easy to operate, low in production cost and suitable for industrial large-scale production.

The invention provides a compound preparation helpful for maintaining prostate health; the compound preparation comprises a compound preparation and a capsule skin for wrapping the compound preparation, wherein the compound preparation comprises the components in percentage by weight: 55-75% of pumpkin seed oil, 5-15% of phytosterol ester, 10-20% of lycopene oleoresin, and 2-10% of beeswax; and before drying, the capsule skin comprises the components in percentage by weight: 5-20% of carrageenan, 15-30% of hydroxypropyl starch, 15-25% of glycerol, 30-60% of water and 0.1-1% of brown iron oxide. The invention also provides a preparing method of the compound preparation helpful for maintaining prostate health. The preparation method comprises the following steps: preparing the compound preparation, dissolving gel, pelleting and drying. The compound preparation can obviously improve benign prostatic hyperplasia symptoms and lower urinary tract symptoms caused by benign prostatic hyperplasia, is safe and non-toxic, and is good in stability, and the capsule skin is not easy to leak.

The invention discloses a preparation method and an application of a biodegradable anti-oxidation fruit and vegetable fresh-keeping film, belonging to the field of biodegradable food film processing. The preparation method of the fresh-keeping film for fruits and vegetables comprises the following steps: mixing starch, glycerin, organically modified montmorillonite and quercetin to obtain a modified powder, mixing and granulating the modified powder with PBAT to obtain composite pellets, and then blowing Biodegradable anti-oxidation fruit and vegetable fresh-keeping film can be obtained by plasticizing it. The fruit and vegetable plastic wrap prepared by the above method uses PBAT and starch as the base material, and the raw materials are all biodegradable materials. After being discarded, they can be disposed of by composting, soil landfill, etc. It is green and environmentally friendly, in line with the concept of sustainable development, and has mechanical properties. Strong, high barrier, good anti-oxidation, good fresh-keeping performance, green and non-toxic.

The invention relates to the field of biodegradable materials, in particular to a high-starch-filled full-biodegradable film and a preparation method thereof. The full-biodegradable film is prepared from the following raw materials in percentage by weight: 35-50% of poly (adipic acid) / butylene terephthalate, 35-45% of starch, 6-15% of glycerol, 2-5% of an inorganic filler, 0.5-1.5% of N-hydroxymethyl acrylamide, 0.5-1.5% of glycidyl methacrylate and 1-3% of an additive, wherein the total amount of the raw materials is 100%. According to the invention, the process is simple, the starch content exceeds 35%, the production cost is low, and the film is high in strength, resistant to tear, good in stiffness, free of surface oil and suitable for disposable packaging materials.

The invention discloses a full-biodegradable straw reinforced starch material and a preparation method thereof. The full-biodegradable straw reinforced starch material comprises the following components in percentage by mass: 40-70% of starch, 10-30% of a glycerol compound, 2-10% of calcium carbonate, 5-15% of straw nanofibers and 5-30% of a full-biodegradable material. Herein, starch is taken as a main raw material and is matched with the glycerol compound, the calcium carbonate, the straw nanofiber and the full-biodegradable material, so that the environmental pressure caused by straw treatment is relieved, and the mechanical strength of the full-biodegradable starch material is improved.

The invention relates to the technical field of processing of seedling raising pots, and in particular relates to a banana fiber seedling-raising pot and a preparation method thereof. The seedling-raising pot is prepared from banana fibers, acetic anhydride, concentrated sulfuric acid, starch, glycerin, polyhydroxybutyrate, chitin, fibroin and an ethanol solution. The method provided by the invention uses the banana fibers to react with the acetic anhydride and the concentrated sulfuric acid to prepare acetate fibers, uses the starch, the glycerin and the polyhydroxybutyrate to prepare a starch gel, uses the chitin, the fibroin and the ethanol solution to prepare a shell mucilage, then the acetate fibers, and the starch gel and the shell mucilage are mixed to prepare the seedling-raising pot; and the method can effectively improve the forming capacity and impact resistance of the seedling-raising pot, and the seedling-raising pot can be biodegraded by microorganisms in soil.

The invention discloses a biodegradable polysaccharide aerogel oil storage material and a preparation method thereof. The oil storage material comprises an outermost paper tube layer, a middle plant polysaccharide aerogel oil storage cotton layer and an inner through core hole. The oil storage cotton layer is prepared from the following raw materials: konjac glucomannan, agar, Arabic gum, food-grade wax, starch and glycerol. The prepared biodegradable plant polysaccharide oil storage cotton has the characteristics of rich net structures, high specific surface area, large porosity, small density and the like, and can adsorb more tobacco tar, so that the oil storage rate of the oil storage material is improved; and on the other hand, the oil storage material has excellent water resistance and tobacco tar erosion resistance, can keep a complete form in water or tobacco tar for a long time, and has good elasticity. Furthermore, the raw materials are natural plant polysaccharides, so that the degradation speed is high, white pollution is not caused, toxic and harmful substances are avoided, and harm to human health is avoided.

The invention discloses a method for fermenting and producing chitinase by Chaetomium globosa and its application. The strain is activated by using Chaetomium globosa HY1, and the activation medium includes glucose, peptone, potassium dihydrogen phosphate, dihydrogen phosphate Sodium; then shaker culture or fermenter culture, the fermentation medium includes soluble starch, glycerol, tryptone, yeast powder, corn steep liquor, NH 4 NO 3 , MnSO 4 , MgSO 4 、Na 2 HPO 4 、K 2 HPO 4 , Colloidal chitin, the chitinase produced by fermentation is used for the preparation of chitooligosaccharides. The cultivation method of the invention is simple, the nutritional requirements are not high, the chitinase produced by liquid fermentation has high activity, and has great industrial application value.

The invention provides starch-based biodegradable plastic and a preparation method thereof. The starch-based biodegradable plastic comprises a combination of starch, glycerol, polylactic acid and lignin modified nano mica, the nano mica has the characteristic of nano size effect, and is limited to be lignin modified nano mica, so that the compatibility between the nano mica and other components is improved, the components are bridged by the nano mica, and a brick-mud structure is constructed; further, the mechanical property, the water resistance and the heat resistance of the finally obtained starch-based biodegradable plastic are remarkably improved; meanwhile, the starch-based biodegradable plastic also has the advantages of low cost, high efficiency, green process, environmental friendliness and the like, and has important research significance.

The invention discloses a preparation method of a hydrophobic degradable starch nano composite film and an obtained product. The preparation method comprises the following steps: firstly, dissolving starch in water, and carrying out hydrothermal reaction in a high-pressure reaction kettle to obtain a turbid and uniform hydrothermal starch carbon nano microsphere solution; and adding the hydrothermal starch carbon nano-microsphere solution or a mixture of the hydrothermal starch carbon nano-microsphere solution and nano calcium carbonate into a mixed system consisting of starch, glycerol and water according to a certain dosage, gelatinizing the starch for a certain time, and preparing a composite film product by a casting method or a tape casting method. The method is easy to operate and high in feasibility, the degradable bio-based composite starch film is prepared without chemical modification, various substances are rich in source and low in price, and the prepared composite film is high in hydrophobicity, good in mechanical performance, high in cost performance and environmentally friendly.

The invention discloses a preparation method of a lycopodium powder modified starch-polypropylene waterproof composite material, which comprises the following steps: adding starch, glycerol, lycopodium powder and a coupling agent into an internal mixer, uniformly kneading to realize composite hydrophobic modification of the lycopodium powder on the starch, and carrying out melt blending compounding on the prepared lycopodium starch composite material and polypropylene to prepare the lycopodium powder modified starch-polypropylene waterproof composite material. The lycopodium powder modified starch-polypropylene waterproof composite material is prepared. The lycopodium powder modified starch-polypropylene waterproof composite material prepared by the invention has good hydrophobicity and waterproofness, and can be used for processing disposable tableware such as a disposable lunch box, a disposable straw, a disposable cup and the like with good waterproofness.