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31 results about "Syneresis" patented technology

Syneresis (also spelled 'synæresis' or 'synaeresis'), in chemistry, is the extraction or expulsion of a liquid from a gel, as when serum drains from a contracting clot of blood. Another example of syneresis is the collection of whey on the surface of yogurt. Syneresis can also be observed when the amount of diluent in a swollen polymer exceeds the solubility limit as the temperature changes. A household example of this is the counter intuitive expulsion of water from dry gelatin when the temperature increases. Syneresis has also been proposed as the mechanism of formation of the amorphous silicate composing the frustule of diatoms.

Carrageenin in-situ forming gel spray for noses, and preparation method of carrageenin in-situ forming gel spray for noses

The invention relates to a carrageenin in-situ forming gel spray for noses, and a preparation method of the carrageenin in-situ forming gel spray for noses, and belongs to the technical field of medicine and pharmacy. The gel spray comprises the following components in percentage by weight: 5-7% of kappa type carrageenin, 3-5% of iot type carrageenin, 0.001-0.005% of lambda type carrageenin, 5-16%of acceptable auxiliary materials in an external preparation for skin, and the balance water. Firstly, through regulating the consumption ratio of the kappa type carrageenin to the iot type carrageenin, the proportion of sulfuric ester content in a mixture is changed, when the gel spray is sprayed into the noses, the elasticity of gel can be improved through potassium ions and calcium ions in nasal cavity secretions, and besides, synaeresis of the gel can also be prevented. An inflammatory reaction is activated through an appropriate amount of the lambda type carrageenin, and human body localimmunization capacity substances are activated to form a layer of film on the surface of a nasal cavity, so that a virus infection way is blocked, and infection of respiration diseases is prevented.The gel spray is simple in preparation method, easy to operate, low in equipment requirements and suitable for large-scale production.
Owner:瑞希(重庆)生物科技有限公司

Method for preparing gamma-aluminium oxide (Al2O3) framework material by using erythromycin fungus dreg produced by fermentation method as core-shell material

The invention discloses a method for preparing a gamma-aluminium oxide (Al2O3) framework material by using erythromycin fungus dreg which is produced by a fermentation method as a core-shell material. The method is characterized by comprising the following steps of: extracting erythromycin and an amino acid from the erythromycin fungus dreg which is produced by the fermentation method by using deionized water or distilled water; carrying out pressure filtration; carrying out syneresis treatment on the fungus dreg which is subjected to the pressure filtration for 2 to 4 hours at the temperature of 150 to 200 DEG C; and then carrying out solid-phase transition for 4 to 6 hours at the temperature of 650 to 800 DEG C to obtain the gamma-Al2O3 framework material. In the method, a residue culture medium and a mycelium in the erythromycin fungus dreg which is produced by the fermentation method serve as the core-shell material, and a metal aluminium ion source which is provided by a flocculating agent in the fungus dreg is utilized fully, so that resources are saved, production cost is low, the porous gamma-Al2O3 framework material with high chemical activity is produced, a good economicbenefit is brought, and the problem of little erythromycin residue in the fungus dreg is also solved. Moreover, the method is environment-friendly and secondary pollution is avoided.
Owner:四川金本科技有限公司

A method for slope ecological restoration

ActiveCN110506573BMatrix physical and chemical propertiesReduce leachingGrassland seedingHops/wine cultivationFlocculationGrowth plant
The invention discloses a method for ecological restoration of slopes. According to a large number of test data and engineering experience, the method summarizes the reasonable material ratio of the spraying substrate, so that the physical and chemical properties of the substrate can reach the optimal index required by plant growth; Compared with the highly dispersed soil particles formed by similar technologies, the soil structure with rich voids in the present invention can retain water and breathe, slow down the leaching of nutrients, and ensure the good growth of plant roots; the sprayed artificial soil has low density, light unit weight, and low internal friction. The angle is large, easy to attach on steep slopes and not easy to peel off. Compared with similar technologies, the thickness of spraying can be significantly increased to meet the long-term growth needs of plants. The use of polyacrylamide has a flocculation effect on the solid matrix, which separates the solid and liquid of the matrix sprayed onto the slope, filters out clear water, and reduces the loss of solid matrix and nutrients; during the syneresis process of the matrix, the solid matrix forms a certain porosity The aggregate structure is more conducive to plant growth.
Owner:GUIZHOU SURVEY & DESIGN RES INST FOR WATER RESOURCES & HYDROPOWER
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