110 results about "Cereal fibre" patented technology

The present invention concerns a granulated powder containing at least one vegetable protein and at least one vegetable fiber, characterized in that it has a laser volume mean diameter D4,3 of between 10 μm and 500 μm, preferably between 50 μm and 350 μm, and even more preferably between 70 μm and 250 μm, and a dry matter content, determined after stoving at 130° C. for 2 hours, of greater than 80%, preferably greater than 85%, and even more preferably greater than 90%. The present invention also concerns a process for manufacturing this granulated powder as well as its use in various industrial field, and more particularly in the food-processing field, where it is used as a functional agent such as an emulsifying, overrun, stabilizing, thickening and / or gelling agent, in particular for totally or partially replacing certain animal proteins in the preparation of food products.

The invention discloses a kind of drum brake staff facing used in cars with none asbestos and none metal and the production technology. The component recipes of drum brake staff facing said above are: polyacrylonitrile fiber 1~10%, the oil of cashew shell friction-type mix 2~10%, barite powder 8~20%, heavy calcium carbonate 5-25%, flour acrylonitrile butadiene rubber 2~15%, the mineral fiber 2~6%, the graphite 3~18%, zircon powder 1~10%, the oil of cashew shell phenol-formaldehyde resin modified 10~15%, premix compound 3~15%, glass fiber 2~15%. The production technology is that make the component told above into three times stir mixing and weigh the amount of last formed material with the need of ordinance about the drum brake facing then chill-pressing confectioning forms cool base and then heat pressing confectioning, heat processing and grind on, drill steps and so on then processing make into production. The recipe production is characterized in that: light weight, stabilize coefficient of friction, soft and sensitive braking, and comfort, noiseless and agree the requirement of environmental protection.

The invention provides a vegetable fiber tableware and a preparation method of the tableware. The method comprises the following steps: mixing raw materials uniformly, hot pressing and molding to obtain vegetable fiber shell, wherein the raw materials comprise bamboo fiber powder, corn starch, urea formaldehyde resin and rice husk with weight ratio of (4-6):(0.5-2): 2-4):1; polishing the surface of the vegetable fiber shell; spraying or soaking water soluble paint to the surface of the polished vegetable fiber shell, and then drying to finally obtain the vegetable fiber tableware. In the method, bamboo fiber powder, corn starch, urea formaldehyde resin and rice husk are used as raw materials, a shell is formed firstly by hot pressing, then a layer of water soluble paint protection film is coated at the surface of the shell, finally the tableware is obtained. The vegetable fiber tableware prepared by the method is coated with the water soluble paint protection film at the surface, the external water and other solvent are hard to permeate into the vegetable fiber shell under the protection of the water soluble paint film. In this way, the waterproof property and the fading resistance of the tableware are improved.

The invention discloses a fruit and vegetable peach piece and manufacturing method, which comprises the following steps: adopting glutinous rice, walnut kernel, plant oil, refined granulated sugar, vegetable or / and fruit as raw material; using color protective, sugar and dehydrating technical to dispose vegetable or / and fruit into preserved vegetables fruits with water content at 20-22%; blending the vegetables preserved fruits with glutinous rice flour and walnut kernel into the boiled sugar liquid; obtaining the product with rich vitamin and plant fiber. The invention overcomes long traditionally technical time and difficult control, which is controlled by set technical flow path and parameter.

The invention relates to a plant fiber chewing gum and a manufacture method thereof. The plant fiber chewing gum comprises 75-85 percent of plant crude fiber yarn containing sugar and fiber powder, 10-21 percent of powder of a plant which can be used as both food and medicine, and 4-5 percent of additive. The manufacture method comprises the steps: stems and fruits of a plant, which are rich in crude fibers and are edible, are cleaned, divided, frozen, dried, flavored and reconstituted, and are prepared into crude fiber yarn and fiber powder which contain sugar after being pulverized and screened; the fiber yarn and the fiber powder are mixed with the powder of the plant which can be used as both food and medicine and the additive by the percentage, the mixture is put into a stirring mill to be stirred evenly and is extruded or pressed to be made into blocks of various shapes; the blocks are coated with chewing gum sugar-coat and are dried and packaged to obtain the finished product. The invention overcomes the defect that the chewing gum taking edible rosin glycerin ester as a chewable carrier pollutes environment after being eaten. The invention takes crude fiber of edible plants to replace the edible rosin glycerin ester, has good chewable capability, does not adhere after being eaten, can be degraded naturally and does not pollute the environment.

The invention specifically provides a foodstuff, medical formulated foodstuff, specific medical formulated foodstuff, health-care product and drug for patients with disorders in intestinal microecology, belonging to the technical field of both medicinal and edible prescriptions and new resource food. Prescriptions for intestinal-microecology regulating preparations in the invention are developed according to the physical characteristics of people with disorders in intestinal microecology and on the basis of reasonable combination of quintessential theories of traditional Chinese medicine and modern bioscientific progress. Specifically, the intestinal-microecology regulating preparations are prepared from probiotic powder obtained after vacuum freeze drying and adjuvants consisting of prebiotics, cereal fiber and multiple natural plant essences of medicinal and edible traditional Chinese medicines and the like through mixing, granulation and other processes, and are capable of forming probiotic intestinal barriers, promoting spleen yang, invigorating the spleen, regulating middle energizer, preventing inflammations, relieving pain and eliminating dampness and heat. The intestinal-microecology regulating preparations can effectively improve gastrointestinal diseases like diarrhea, enteritis and dyspepsia caused by disorders in intestinal microecology; the preparations can improve insomnia dreaminess due to the tranquillizing effect of ginseng; and kudzu vine roots and turmeric in the preparations can relieve or neutralize the effect of alcohol, protect the liver, and alleviate discomfort caused by alcohol.

The invention relates to a light and high-strength wallboard made from fiber reinforced concrete which takes 30-40% of cement, 25-35% of rock flour, 20-30% of pulverized fuel ash, 5-9% of plant fiber, 1-3 per mill of concrete fiber, 1-1.5 per mill of white emulsoid, 1-1.5 per mill of acid amides, 3-5 per mill of cellulose calcium and 1-1.5 per mill of calcium stearate as raw materials. The plant fiber is paper fiber and / or straw fiber. Water is added to mix all the materials, so that the mixture obtains very good plasticity; then the mixture gets through the vacuum extruder and is squeezed out through a die orifice, forming a plate with a section; then the plate is cut into plates with a certain length, which are conveyed to a curing room for curing and molding. With the preparation method of the invention adopted, production processes can be reduced, waterproof and heat-preservation effect can be bettered, production cost can be lowered and pollution sources can be precluded. In addition, wasted paper at home can be used to replace the wasted paper imported from abroad so as to obtain cellulose produced by deliberation decomposition treatment, thus improving use ratio of straw and enjoying remarkable economic and social benefits.

The invention discloses a bionic modified plant fiber modified soybean protein adhesive and a preparation method thereof. The preparation method comprises the following steps: taking soybean meal protein as a main body of the adhesive, and adding bionic modified plant fibers and auxiliary agents such as tannic acid to enhance the water-resistant adhesive property of the soybean meal protein adhesive. The bionic modified plant fiber modified soybean protein adhesive has the advantages that the nano structure of gecko toes and the chemical components of mussels are combined to modify the plant fibers, and the interface binding force between the fibers and a matrix is effectively enhanced; the adhesive prepared from renewable and environment-friendly soybean meal protein, the plant fibers andtannic acid has the advantages of high adhesive strength, good water resistance, low cost, sustainability, environmental friendliness and the like; and a glued board has no formaldehyde release, so that the problem of indoor air formaldehyde pollution caused by boards glued by an aldehyde adhesive is thoroughly solved.

The invention discloses a processing technology of canned multi-flavor bamboo shoots, and belongs to the field of food processing. The processing technology is characterized by comprising the following technological process: selecting raw materials; treating the raw materials; precooking; canning; exhausting and sealing; sterilizing; cooling; and forming finished products. The processing technology has the beneficial effects that the canned multi-flavor bamboo shoots are moderate in hardness, tender and crisp in tissue, full in juice, rich in a plurality of nutrient substances such as protein and plant fibers, and easy to absorb by a human body, have a unique faint scent of bamboo shoots, and a very good intestinal cleansing function, are conducive to enhancement of an immune function of the organism and improvement of the disease resistance, have the efficacies of whetting the appetite, tonifying spleen, relieving chest stuffiness, disinhibiting diaphragms, dredging intestines, defecating, losing weight and slimming, are low-sugar and low-fat healthcare food, are convenient to eat, and are suitable for people of all ages.

The invention provides a composite cat litter and a preparation method thereof. The cat litter is of a core-shell structure and comprises a core layer, an inner shell layer and an outer shell layer, wherein the core layer comprises raw materials of wood chips, paper pulp, plant fiber and shell-lac; the inner shell layer comprises raw materials of modified zeolite, corn starch, plant fiber and guargum; and the outer shell layer comprises raw materials of kieselguhr and a liquid plant extract sterilization agent. The preparation method comprises the following steps: firstly, preparing the corelayer, coating surfaces of granules of the core layer by a mixed material of the inner shell layer so as to form granules of the inner shell layer in the rolling process, finally, preparing materialsof the outer shell layer so as to obtain a homogenate, spraying the homogenate to surfaces of the granules of the inner shell layer, and performing drying, so as to obtain a finished product of the composite cat litter. The composite cat litter provided by the invention takes advantages and avoids shortcomings, advantages of the kieselguhr is sufficiently taken into play, and through improvement of structures and formulae, use defects of the kieselguhr can be overcome.

The invention relates to an agent for recycling straws by using a biologically cold fermentation method, belonging to the field of recycling and utilization of crop straws. The recycling agent comprises the following components in parts by weight: 2-8 parts of straw rapid corrosion agent, 2-8 parts of sodium dodecyl sulfate, 15-25 parts of dispersed anthraquinone, 60-80 parts of quick lime and 5 parts of fumed silica. The invention also relates to a process for producing plant fibers by using the straws with the biologically cold fermentation method; and the process comprises the following steps of: crushing the straws until the water content reaches 20-50 wt%; adding 40-60% by weight of the agent for recycling the straws by using the biologically cold fermentation method and mixing the mixture uniformly; fermenting and swelling the mixture at a temperature of 20-30 DEG C for 1-3 days to obtain a fermented material; rubbing, devillicating, fibrillating and pulping the fermented material to obtain plant fiber slurry with the beating degree of 37-47 DEG SR (Schopper Riegler). According to the recycling agent and the process provided by the invention, the plant fibers are recycled from the straws by utilizing the biologically cold fermentation method without stewing, so that no waste liquid is discharged in the whole process, the cost is low, the effect is quick, the yield of the prepared slurry is greatly improved, the fibrousness is high, the paper performance is excellent, and the production requirements on various paper products can be met.

Belonging to the field of food processing, the invention discloses a making method for low sugar preserved nutritional bamboo shoot. The method is characterized by: adopting 100% of fresh bamboo shoots, 45-50% of sucrose, 0.25%-0.35% of sodium sulfite, a proper amount of Sichuan white sugar, malic acid and citric acid to compose the formula, and the processing process consists of: material selection, raw material treatment, bleaching leaching, first sugar boiling, second sugar boiling, third sugar boiling, drying, and packaging. The product provided by the invention is sweet and juicy, has delicate, crisp and tender flesh, is rich in nutrition, and has the faint scent and sweet flavor of bamboo shoots. The product is rich in protein, plant fiber and other nutrients, is easy to absorb by the human body, has very good intestinal cleaning function, is conducive to enhancing the immune function and disease resistance ability of the body, has the efficacy of promoting appetite and tonifying spleen, regulating qi and disinhibiting diaphragm, opening diaphragm and dissolving phlegm, smoothing intestine for defecation, and losing weight, and is a low-sugar and low-fat health care food.

The invention discloses a preparation method of a sugared bamboo shoot-flavor nutritional preserved fruit, belonging to the field of food processing. The method is characterized by comprising the technological processes of treating raw materials, blanching, cooking with sugar for the first time, cooking with sugar for the second time, cooking with sugar for the third time and drying. The preparation method has the beneficial effects that the product has proper sweetness, is crisp and juicy, fine and smooth as well as crisp and tender in pulp and rich in nutrition, and has the faint scent and sweet flavor of bamboo shoots; the nutritional preserved fruit is rich in multiple nutrient materials such as protein, plant fiber and the like, can be easily absorbed by the human body, has a good intestinal tract cleaning function, is beneficial to improving the immunologic function of the organism and improving the disease prevention and resistance ability, and has the effects of appetizing and tonifying the spleen, relieving chest stuffiness and benefiting diaphragm, opening diaphragm and dissolving phlegm, relaxing bowels and losing weight, thus being a health food which is economical, practical and suitable for people of all ages.

The present invention relates to a potato whole flour nutritional grain. Potatoes are rich in carbohydrates, cellulose, vitamins and trace elements, by compatibility of the potato whole flour and other nutrients, the contained nutrition is more complete, and by pasting, granulation and drying and other processes, the recombinant health grain is prepared from the potato whole flour, the potato whole flour nutritional grain overcome the shortcomings of loose internal structure and easy deformation of cooking of the grain, the recombinant grain with a net-like internal structure is provided, and the recombinant grain does not disintegrate by cooking, is fragrant glutinous in taste, complete in nutrition ingredients, high in carbohydrate, protein and vitamin content, and low in fat content, and can meet the requirements of a healthy diet.

A false-twist stretching method for animal fibres includes wetting and rolling several times, wet and hot storage, false-twist stretching, shape fixating in cold water, and baking. Its apparatus consists of wetting and rolling unit, false-twist stretching unit, two guide rollers, and two squeeze rollers.

The invention provides a fly ash plant fiber heat-insulating core building block which mainly comprises a fly ash hollow building brick, a plant fiber heat-insulating core and the like, wherein plant fiber can be crop straw or stalks of other plants, such as rice husk, rice straw, wheat straw, maize straw, cotton stalk, sawdust, bamboo dust and the like. The invention has the advantages that a great deal of fly ash and agricultural waste can be consumed to produce an energy-saving building wall material, environmental pollution can be reduced, clay in a great amount of fertile lands is saved, the waste is changed into the valuable, and a great deal of fuel coal can also be saved. The energy saving capability of a building is greatly increased, the heat insulating effect is enhanced, and the fly ash plant fiber heat-insulating core building block is durable, safe and resistant to fire and can effectively isolate sounds. Therefore, the fly ash plant fiber heat-insulating core building block has convenient construction technology, high speed, high building efficiency, material saving, small transportation amount and low engineering cost. The weight of the building block is light, and the cost of the entire building is low. The fly ash plant fiber heat-insulating core building block has the characteristics of energy saving, waste utilization, environmental protection, greenness, high strength, light weight, heat insulation, sound isolation, high efficiency, labor saving and the like.

Belonging to the technical field of aquaculture, the invention relates to a letinous edodes residue fermented feed and a breeding method for raising the meat quality of genetically improved farmed tilapia. The feed is obtained by subjecting letinous edodes residue, meal starch and plant starch to bacterial liquid fermentation treatment, and then conducting compounding with composite vitamin. According to the invention, through fermentation treatment on letinous edodes residue, the protein, plant fiber and the like contained therein can be effectively decomposed, and can be absorbed by genetically improved farmed tilapia, nutritional ingredients therein can be suitable for digestion and absorption of genetically improved farmed tilapia, so that the meat can be more tender and has little crude fiber, the taste of genetically improved farmed tilapia is improved, also the fact content of meat is reduced, thus being more conducive to eating health.

Vegetable meat is a high nutritional vegetable food, which uses gluten proteins, minerals, vitamins and food fibres of cereals and legumes. Vegetable meat is obtained by mixing a percentage of gluten with a percentage of one or more cereal flowers, or with a percentage of one or more legume flowers, or with a percentage of one or more cereal and legume flowers together. This mixture is seasoned with natural spices according to the taste required and then kneaded and worked with water or vegetable broth and afterwards boiled. By changing the various percentages of the components and the different kinds of flowers, various types of vegetable meat are obtained: steak, stew, mince, hamburger, sausage, pizzaiola, mortadella, ham, bresaola, guanciale, etc. It has a cylindrical shape with rounded ends.

The invention provides an immature soil composite and a construction technology of a wall structure thereof. The immature soil composite comprises the following components in parts by weight: 200-500 parts of clay, 20-50 parts of vegetable fat, 0.5-2.0 parts of plant fiber, 0-5 parts of quick lime, 500-1200 parts of sand and 150-250 parts of water. The immature soil composite provided by the invention mainly takes plant fiber, vegetable fat and sand as modifying materials; the plant fiber has reinforcing and toughening functions, can promote the strength and shock resistance of the immature soil composite and can reduce the shrinkage of the material; the vegetable fat, the clay and the quick lime are mixed and used together, so that the mutual physical and chemical reactions are generated, the strength of the composite is higher than the strength of the traditional lime soil composed of clay and quick lime and the toughness is better; the sand is mainly used for increasing the volume stability of the immature soil composite; and the plant fiber, the vegetable fat, the sand, the clay and the quick lime are formed into the immature soil composite.

The invention relates to the technical field of filter materials, and discloses quantitative filter paper which comprises the following components in parts by weight: 40-80 parts of alkali-treated cotton linter pulp; 30-50 parts of hardwood pulp; 20-40 parts of mixed plant fiber; the mixed plant fibers comprise one or a combination of more of mulberry fibers, paper mulberry fibers, pteroceltis tatarinowii fibers, ramie fibers and aloe cotton fibers. The quantitative filter paper and the preparation method thereof have the beneficial effects that the quantitative filter paper is high in strength, good in toughness, not easy to damage in the suction filtration process, low in ash content and convenient to use, and the accuracy of experimental data is improved.

A method for preparing corrugated base paper from apple juice waste comprises the following specific steps: 1, washing and fading the apple juice waste, removing saccharide to obtain fiber slurry with the mass concentration of 0.8-1.2%, removing impurities, cleaning, dewatering and concentrating the fiber slurry till the mass concentration is 5-15%, slightly defibering by several times, and defibrinating and devillicating to obtain the apple juice waste fiber slurry; 2, mixing the apple juice waste fiber slurry obtained in the step 1 with defibrinated plant fiber, adding chemical additives, adding water for diluting the mixture into slurry with the mass concentration of 0.6-0.8%, and finally papermaking by a wet forming method to obtain the corrugated base paper. In combination with characteristics of the fiber morphology and chemical components of the apple juice waste, the apple juice waste is used for preparing the corrugated base paper, so that the utilization problem of the apple juice waste is solved and papermaking raw materials are saved; and the prepared corrugated base paper is high in surface flatness, high in strength, water-proof, damp-proof and mildew-proof.

The invention discloses a preparation method of a foamed sponge filler. The preparation method comprises the following steps: a, adding a plant fiber dispersion phase into a polymer foaming reaction solution; b, uniformly stirring and dispersing the plant fibers, and then carrying out foaming reaction; and c, performing curing and shaping. The polymer foaming reaction solution comprises but is notlimited to a polyurethane prepolymer, an EVA foaming component, a PVA foaming component or a melamine foaming component. The plant fiber dispersion phase comprises but is not limited to wheat straw,rice straw, corn straw, rape straw, cotton straw or corncob, and the particle size of the plant fiber dispersion phase is 20-120 meshes. The invention further discloses the foamed sponge filler whichis prepared by the preparation method. According to the foamed sponge filler and the preparation method thereof provided by the invention, attachment and survival of microorganisms are facilitated, the foamed sponge filler also has a carbon source slow-release function, additional carbon sources can be reduced in the sewage treatment process, and the sewage treatment effect is ensured.

The invention relates to a fiber aid for slope spray-seeding greening, a preparation method and a matrix. The preparation method comprises the following steps: adding magnesium aluminum silicate or attapulgite into water at normal temperature, and fully swelling; adding a calcium chloride solution and fully mixing; adding a magnesium sulfate solution, fully mixing and reacting; adding a diammonium hydrogen phosphate solution, and adjusting the pH value to 6.5-7.5; and adding a sodium carboxymethyl cellulose solution, and uniformly stirring and mixing to form the fiber aid. By adding the fiber aid, the long-acting stability of the matrix material is improved, and the slope ecological protection effect is guaranteed. In addition, the addition of the fiber aid can optimize the proportion of the existing substrate, reduce the consumption of plant fibers on the basis of not influencing the anti-scouring performance of the substrate, and improve the technical economy of the spray-seeding technology.

The present invention discloses a processing method for nutritional bamboo shoot slices with sesame oil, and belongs to the field of food processing. The processing method is characterized by a process flow including the following steps: selecting raw materials, and pre-treating, seasoning, bottling, sealing, sterilizing and cooling the raw materials. The beneficial effects of the processing method are that: the produced bamboo shoot slices are fragrant and juicy, and have delicate and crisp flesh, rich nutrients, and a fragrant and sweet flavor of bamboo shoots; the bamboo shoot slices are rich in proteins, plant fibers, and other nutrients, which can be easily absorbed by the human body, and thus have a good intestinal cleaning function; and the bamboo shoot slices help to enhance the body immune function and improve the disease prevention and resistance capabilities, and have effects in whetting the appetite and tonifying the spleen, relieving the stuffiness of the chest diaphragm, unbinding the diaphragm and dissolving the phlegm, smoothing the intestines and accelerating the defecation, and losing the weight and slimming the body shape. Therefore, the bamboo shoot slices are health care food with low sugar and low fat.

The invention discloses a selenium-rich biological fertilizer which is prepared from the following components in parts by weight: 50-60 parts of pig manure, 30-40 parts of cow dung, 20-40 parts of buckwheat straw, 4-6 parts of corn straw, 5-10 parts of seaweed meal, 4-6 parts of selenium-rich matter, 1-2 parts of lime powder, 5-7 parts of manganese sulfate, 3-5 parts of calcium sulphate, 1-3 parts of sodium selenite, 5-7 parts of bacteria strain and 20-30 parts of potassium humate. According to the invention, the animal dung and the plant fiber are added for supplying comprehensive nutrition to the crop growth. The bacteria strain is adopted for fermenting the plant fiber and the animal dung, degrading the organic compounds, such as, macromolecule protein therein, decomposing the organic compounds into the nutritional ingredients easily absorbed by the plant, so that the absorption rate of the crop for the nutrition is increased.

The invention relates to the field of feed, in particular to a plant fiber feed raw material processing device. The technical problem of the invention is to provide the plant fiber feed raw material treatment device. According to the technical scheme, the plant fiber feed raw material treatment device comprises a working machine tool plate, a supporting foot stool, a bearing mounting plate, a soaking cabin, a hulling system, a shearing system and a fluctuation treatment system; the lower portion of the working machine tool plate is welded to the supporting foot stand. According to the device, soybean straw stacks are automatically flattened, bean pods carried by the straws are separated, the straws are cut off after being soaked, the phenomenon that chippings appear when the straws are cut can be avoided, waste of the straws is reduced, and the cleanliness of the working environment is guaranteed, meanwhile, the effects of impacting, cleaning and scattering the cut small sections of straw are achieved in a mode of stirring the Chinese herbal medicine liquid.

The invention discloses a probiotic viable bacterium particle and a preparation method of the probiotic viable bacterium particle. The product of the probiotic viable bacterium particle is prepared from the following ingredients: probiotics, food fiber powder and vegetable juice bonding agents. The preparation method of the product of the probiotic viable bacterium particle comprises the following steps that the probiotics, the food fiber powder and the vegetable juice bonding agents are stirred, mixed and kneaded into cake with the proper humidity, then, the cake is made into particles with the sizes like soybeans, and qualified products are obtained through baking, weighing and packaging. 200 to 300 hundred million strains of probiotic active factors are contained in the product, harmful microbes and pathogenic bacteria can be killed after the viable bacteria enter the human body, in addition, various kinds of enzymes such as amylase, protease, lipase, lactase, cellulose and peptidase can be produced, the metabolism can be promoted through the enzyme effect generated by the enzymes, and the human body immunization function is enhanced, so the effect of preventing and treating various kinds of diseases can be realized.

The invention discloses a processing method of sesame-oil nutrient bamboo shoot slices, and belongs to the field of food processing. The processing method is characterized by adopting a processing technique flow of material selection, pre-treatment, seasoning, bottling, sealing, sterilization and cooling. The processing method has the beneficial effects that the product obtained by the processing method disclosed by the invention is tasty and juicy, fine, smooth, crisp and tender in meat quality, and rich in nutrition, and has the flavours of fragrance and sweetness of bamboo shoots; the product is rich in many nutrient substances such as proteins and plant fibres, easy to absorb by human body, great in intestinal tract cleaning function, and beneficial for enhancing the immunologic function of organism and improving the disease-preventing and disease-resisting capacities, has the effects of promoting appetite and tonifying spleen, loosening chest and clearing diaphragm, opening diaphragm and dissolving phlegm, smoothing intestine and relieving constipation, and losing weight, as well as is a low-sugar and low-fat health food.

The invention discloses a plant fiber-based antibacterial material and a preparation method thereof. The plant fiber-based antibacterial material is prepared from the following substances in parts byweight: 95-100 parts of plant fibers, 2-20 parts of starch, 0.1-3 parts of chitosan, 1-10 parts of a modifying aid, 5-20 parts of isopropanol and 100-600 parts of water. The plant fiber-based antibacterial material has the characteristics of light weight, low cost, full degradation and excellent antibacterial performance, and can be widely applied to the field of direct contact packaging of foodsand other sanitary materials with higher sanitary requirements.

The invention discloses an environment-friendly biodegradable food packaging box. The food packaging box is prepared from, by weight, 30-45 parts of sweet potato starch, 8-12 parts of hydroxypropyl methyl cellulose, 1-2 parts of a plant fiber modifier, 3-8 parts of an antibacterial solvent, 4-6 parts of polyethylene glycol, 1-2 parts of an emulsion adhesive, 0.05-0.1 part of cellulase, 1-3 parts of polyol, 6-8 parts of chitosan and 6-8 parts of a composite filler. The sweet potato starch, the hydroxypropyl methyl cellulose, the plant fiber modifier, the antibacterial solvent, the polyethyleneglycol, the emulsion adhesive, the cellulase, the polyol, the chitosan and the composite filler are matched; the food packaging box is prepared through the procedures of mixing, stirring, drying, extrusion forming and the like, the needed technological process is simple, manufacturing materials of the packaging box are all degradable materials, after the food packaging box is used up, unmanned treatment is conducted in time, the food packaging box can be slowly degraded, harm of the food packaging box to the nature is reduced, and the food packaging box belongs to an environment-friendly biodegradable packaging box.