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2212results about How to "Improve water holding capacity" patented technology

Method for preparing nano-cellulose antibacterial composite material through on-line culture

ActiveCN102552965ARealize fermentation productionImprove continuityCosmetic preparationsBacteriaWater bathsFiber
The invention relates to a method for preparing a nano-cellulose antibacterial composite material through on-line culture. The method comprises the following steps of: (1) inoculating an activated bacterial cellulose producing strain into a liquid culture medium, performing amplification culture, transferring the liquid culture medium into a bioreactor, culturing, adding an antibacterial material into the liquid culture medium, and continuing to culture to obtain an unpurified antibacterial bacterial cellulose composite material; and (2) peeling a bacterial cellulose membrane from a framework or directly soaking the composite material in a NaOH solution, treating in water bath, and washing until an obtained product is neutral to obtain the nano-cellulose antibacterial composite material. The preparation efficiency is high, and the method is simple, convenient, feasible and low in cost; and the surface of the bacterial cellulose composite material has a nanoscale three-dimensional fibrous mesh-shaped structure, the tensile strength of the material is greatly improved compared with that of a pure bacterial cellulose membrane, and the material can be widely applied to products such as facial masks, wound dressings, plasters, artificial skins and the like.
Owner:DONGHUA UNIV

Vegetation restoration method adopting plant fiber blanket with assist of slurry spraying

The invention belongs to the field of ecological engineering and relates to a construction method of spraying and covering planting in an ecological restoration project, namely, a vegetation restoration method adopting a plant fiber blanket with the assist of slurry spraying. The invention is characterized in that the method comprises the following steps: laying a slope through the plant fiber blanket firstly, spraying and covering the slope through slurry and covering the slope through the plant fiber blanket. In the invention, a three-dimensional net made of geotextile material can be replaced; chemical synthetic materials entering the natural world can be obviously reduced when the effect of improving the overall and local stability of the slope is achieved; moreover, vegetable fiber can also increase organic components of soil, is beneficial for improving the capacities of water retaining and constant-temperature keeping of the soil on the surface layer and is beneficial for the growth of vegetation on the slope; when the construction cost is reduced, the low carbon conversion and utilization of agricultural and forestal residuals are realized, agricultural and forestal chains are extended, and the industrial added value of by-products is improved; and the method has a large application value in the soil and water conservation, sand prevention and control and ecological restoration of the damaged vegetation in a project in China.
Owner:北京林丰源生态科技有限公司

Pollution prevention and vegetation recovery method for metal sulphide ore solid waste storage yard

The invention relates to a pollution prevention and vegetation recovery method for a metal sulphide ore solid waste storage yard. The method comprises the following steps of conducting stabilizing treatment on side slopes of the storage yard, laying a two-way geogrid, building intercepting ditches in the slope faces of the storage yard, spraying an acidic improvement layer, laying a flexible isolating layer, laying ecological sticks, laying a two-way geogrid, spraying a base material layer, spraying a seed layer and laying a protective layer, so that plants have sufficient water and nutrition during growth. Due to the fact that the acidic improvement layer is built for neutralizing H+, the plant growth condition can be built; the flexible isolating layer and vegetation recovery are combined for preventing H2O and O2 from making contact with tailings, sulfide minerals in waste rock can be effectively prevented from being oxidized, and therefore waste water acidification and heavy metal ion leaching are prevented. According to the pollution prevention and vegetation recovery method, the problem of environmental pollution of pollutants in the metal sulphide ore solid waste storage yard can be effectively reduced, the area of green plants can be increased, and the good ecological environment is built; the pollution prevention and vegetation recovery method is simple in construction technology, easy to implement, high in efficiency and suitable for large-area application.
Owner:BEIJING GENERAL RES INST OF MINING & METALLURGY

Method for preparing porous compound type high permeability absorption hemostasis coating with modified nano-crystalline cellulose

The invention discloses a method for preparing porous compound type high permeability absorption hemostasis coating with modified nano-crystalline cellulose, and belongs to the field of biological medical materials. The method comprises the following steps of: pre-processing bacterial cellulose by alkali water at high temperature to remove endotoxin; scattering the obtained bacterial cellulose under a high-speed bacterial pulverizer to be fine fibers; performing alkalization treatment on the fine fibers by alkali liquid with the proper concentration to activate the cellulose; adding an etherifying agent grafted modified bacterial cellulose to ensure that the fiber has a certain hemostasis function; uniformly compounding the modified bacterial cellulose with sodium alga acid to form gel network by ion crosslinking; and freezing and drying the gel network to obtain the hemostasis compound material with good performance. The porous compound material prepared by the method is a good medicine carrier, which can carry the medicines capable of resisting bacteria, stopping the pain and coagulating blood, so that the material has good medicine sustained release effect under different PH values. The porous compound material is high in biocompatibility and cell affinity, can promote proliferation and differentiation of stem cells, and facilitates rapid recovery of damaged tissues.
Owner:北京中杰瑞康科技有限公司

Nutritional health food with function of improving gastrointestinal function and preparation method thereof

The invention discloses a nutritional health food with the function of improving gastrointestinal function and a preparation method thereof. The nutritional health food can be used for regulating the intestinal flora to improve the gastrointestinal function from the aspects of increasing the probiotics type and quantity, increasing the probiotics nutrient substance, inhibiting the growth of harmful bacteria and enhancing the immunity of human body. According to the preparation method, probiotics powder such as lactobacillus plantarum is used as the main raw material, and edible fungi extracts and modified dietary fibers are scientifically compounded; saussurea involucrata culture extracts which are capable of remarkably enhancing the immunity of human body, resisting inflammatory and easing pain, and have the functions of oxidation resistance, radiation resistance and fatigue resistance are used, so that while the intestinal probiotics flora types is increased, the fix planting capacity of the endogenous probiotics and exogenous probiotics in the intestinal tracts of human body is remarkably enhanced, and fix planting time of the endogenous probiotics and exogenous probiotics in the intestinal tracts of human body is prolonged remarkably, the growth and reproduction of the harmful bacteria, particularly the Gram negative bacteria, in the intestinal tracts are effectively inhibited, the forming of the probiotic floras in the intestinal tracts is fully regulated and the nutritional health food which is good in probiotic property, capable of remarkably enhancing the immunity of human body and has the effect of improving the gastrointestinal function is prepared.
Owner:北京东方兴企食品工业技术有限公司

High-speed composting process and apparatus

The invention relates to a high rate composting method and equipment thereof. The method comprises the following steps: sending organic solid waste to separation equipment for separation and recycling; making the waste into grains and sending the grains into a materialized pretreatment groove; adding a wetting agent, a bond dissociation agent and water beyond saturation state of materials; after stirring, sending the mixture into a high speed stable kettle for heating and pressurizing; maintaining the material in the reaction kettle at liquid and solid state; adding an oxidizer and a heavy metal remover; after reducing pressure to reduce pressure in a vessel, sending the mixture to a high speed activation kettle; adding a softening agent and an activation agent for an activation reaction under the condition of increasing temperature and pressure; and carrying out steam instant explosion operation by leading material to a product finery and controlling humidity, granularity and nutriment in a fertilizer within a range as required. By the method, the organic waste can be transferred to high quality compost in an hour and hydroscopic property, moisture retaining quality, adsorptivityof N, P, K and trace elements needed by plants, ventilation property, thermal insulation, flood-resistance and desertification resistance can be improved greatly, bacterium and parasites can be killed completely, poisonous organic compound can be decomposed and excess heavy metal in material can be stabilized or removed.
Owner:北京绿创生态科技有限公司

Fertilizer capable of improve tobacco soil and promote growth of root

ActiveCN101973824AIncrease soil organic matterPromotes plant root developmentFertilizer mixturesCuring of tobaccoNicotiana tabacum
The invention relates to a fertilizer capable of improve the tobacco soil and promote the growth of roots. The fertilizer comprises the following components by weight percent: 60-90% of humus type organic carrier, 4-10% of rooting powder or root growth promoter, 2-5% of plant growth hormone, 2-5% of potassium sulfate and 2-10% of secondary element/trace element fertilizer. By using the fertilizerof the invention, the soil can be improved, the soil organic matters can be increased, the soil organic and inorganic composites can be improved, the water-stable aggregate structure is easy to form,the supply of soil nutrients can be coordinated, the growth of plant roots can be promoted, the effectiveness of nutrients in soil can be increased, the potassium content of plant tissues can be increased, the organic matters of the tobacco soil can be increased, the effectiveness of nutrients in the tobacco soil can be increased, the growth of tobacco can be promoted, the potassium content of tobacco leaves can be increased, the quality of the flue-cured tobacco leaves can be improved, and the fragrance of tobacco leaves can be increased. By using a defined amount of the fertilizer of the invention, the absorption of the flue-cured tobacco to heavy metals such as arsenic can be reduced, the heavy metal enrichment factor of the flue-cured tobacco can be reduced and the contents of heavy metals such as arsenic in soot and smoke can also be reduced.
Owner:HENAN AGRICULTURAL UNIVERSITY

Method and device for preparing bacterial cellulose composite material quickly on large scale

The invention relates to a method and device for preparing bacterial cellulose composite materials quickly on a large scale. The method comprises the steps as follows: (1) a bacterial cellulose producing strain is inoculated in liquid medium for propagation and then transferred into a biological reactor containing framework material for perturbation cultivation, so that bacterial cellulose composite material can be obtained; and (2) bacterial cellulose of the bacterial cellulose composite material is peeled off from the framework material or the cellulose composite material is soaked in NaOH solution to be washed. The device comprises a thermometer opening, an acid liquor and alkali liquor feeding opening, a handle, an air vent, a pH meter opening, a nutrition feeding opening, a rotating shaft, a fermentation tank, a motor, a rotating drum, a fermentation tank jacket, a circulating water inlet, a circulating water outlet, a nutrient fluid inlet, a nutrient fluid outlet and a condensed water outlet. The rotating drum is fixed on the rotating shaft in the fermentation tank. The device provided by the invention has the advantages of simplicity, convenience, detachable die, low cost, high production efficiency and high degree of automation; and the obtained bacterial cellulose composite material can be widely applied.
Owner:DONGHUA UNIV

Watermelon juice probiotic fermented beverage and preparation method thereof

InactiveCN104770816AEnhanced abiotic and biotic stabilityReduce the introductionFood preparationHigh pressure pulseChemistry
The present invention discloses a watermelon juice probiotic fermented beverage and a preparation method thereof. The beverage preparation method uses watermelons as raw materials, scientifically blends prebiotic factors, does not add any essences and coloring matters, mainly uses low-temperature processing technology such as ultrasonic wave cleaning, high-pressure pulsed electric field treatment, biological enzymolysis, vacuum degassing, etc. in the whole process, replaces the existing heat sterilization and enzyme blunting technology, maintains the color and luster, flavor and mouth feel of the natural watermelon juice to a maximum degree, enhances the non-biological stability and biological stability of the watermelon juice, reduces the addition of chemical additives, increases the juice squeezing rate and food safety of the watermelon juice, and has a probiotic live bacteria content of 7 multiplied by 10^11 to 8 multiplied by 10^11 cfu/ml. The watermelon juice probiotic fermented beverage is environmentally friendly, can be processed into probiotic solid beverage and quantitatively packaged beverage which have natural taste, are nutritious and health-care, are convenient to drink, and have longer shelf lives, opens up a new way for watermelon deep processing and industrial development, and can achieve better economic and social benefits.
Owner:NINGXIA HENGRUI BIOLOGICAL FOOD TECH CO LTD

Health food capable of improving intestinal flora and preparation method of health food

The invention discloses a health food capable of improving intestinal floras and a preparation method of the health food. The intestinal floras are adjusted on a plurality of aspects of increasing the probiotics variety and quantity, adding probiotic nutrient substances, inhibiting the harmful bacterial growth and increasing the human immunity, so that the gastrointestinal functions are improved. With probiotic powder such as lactobacillus plantarum as a main raw material, an edible mushroom extract is scientifically compounded, and dietary fibers are modified, so that the human immunity can be significantly improved; a saussurea involucrate culture extract has the efficacies of resisting inflammation, relieving pain, and resisting oxidation, radiation and fatigue; the variety of the intestinal beneficial bacteria floras is increased; the field planting capacity of endogenous and exogenous probiotics in human intestinal tracts is significantly enhanced and the field planting time of endogenous and exogenous probiotics in human intestinal tracts is significantly prolonged; the growth and the reproduction of intestinal harmful bacteria, especially gram negative bacteria, are effectively inhibited; the components of the intestinal beneficial bacteria floras are fully adjusted; and the health food which is high in probiotic property, and is capable of significantly improving the human immunity and improving the intestinal floras is prepared.
Owner:河南小杉健康科技服务有限公司
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