摘要:
The method for production of a fermented goat's milk beverage, according the invention, depending on pasteurization, cooling down, and inoculation with a starter culture, is specific in this that the goat's milk, containing from 12.30 wt.% to 14.80 wt.% total solids, including total protein from 3.5 wt.% to 4.2 wt.%, and lipids from 3.5 wt.% to 5.0 wt.%, titratable acidity from 5.4 °SH to 8.5 °SH and pH from 6.50 to 7.30, is inoculated with an activated monoculture probiotic starter of Bifidobacterium animalis subsp. lactis BB-12 in the amount from 7 wt.% to 10 wt.%, and then incubated at 37-40°C until curd formation. So prepared probiotic fermented goat's milk beverage is cooled down to 5±1 °C, and stored at this temperature until consumption or distribution.
摘要:
The spray booth ventilation system characterized in that it has a device for heat exchange comprising a module (24) with a compressor and an expansion valve, the compressor being connected with two heat exchangers: (2a) located in the supply duct (3) and (2b) located in the exhaust duct (4), and the expansion valve located between the heat exchangers (2a) and (2b) . Preferably, the compressor is connected via electrovalves with a heat accumulator (5) which is equipped with two heat exchangers: bottom (6a) and upper (6b). Preferably, the heat accumulator (5) has a third heat exchanger (6c) connected through the flow pump (7) with the alternative heat source (8). The compressor can be connected via the electrovalves with the heat exchanger (9) transferring the heat to another use. Preferably, the spray booth has an installation for heat recovery (10) connected to the supply duct (3) and exhaust duct (4), wherein the heat exchanger (2b) is located in the exhaust duct (4) before and/or behind the heat recovery installation (10). Preferably, inside the module (24), the heat pump refrigerant circuit is a closed one, which is connected to the separate (glycol) circuit(s) of the different heat exchanger (2b) via the the evaporator and or the condenser, said separae circuits having the own flow pumps.
摘要:
A method of obtaining a latent hardener according to the invention is characteristic of the fact that a non-organic salt of a metal is dissolved in water and a carbon nanofiller is added in the amount from 5 to 20wt%, it is stirred, then an imidazole derivative is added and complexing is conducted for the time of 1 to 4 hours, next the content of the reactor is left alone from 0.5 to 24 hours at room temperature, the sediment is separated and purified. Copper (II) sulphate (VI) is used as a non-organic salt. Carbon nanotubes and/or graphene are used as a carbon nanofiller. As a derivative of an imidazole there are used 2- or 1-substituted imidazoles: 1-methylimidazole, 1-ethylimidazole, 1-butyloimidazole, 2-methylimidazole, 2-ethylimidazole, 2-butyloimidazole, 2-ethylo-4-methylimidazole. The sediment is separated by decantation and is purified by washing 4 times with acetone. The composition of an epoxy resin consisting of an epoxy resin in the form of a bisphenol A derivative and a hardener is characteristic of being a product which is a result of a mechanical stirring of an epoxy resin in the amount of 92-96 parts by weight and a latent hardener in the amount of 4-8 parts by weight obtained according to the method described above. Its adhesiveness during 94 days of storage does not exceed 100 Pa·s. The composite material obtained by casting followed by cross-linking is a product of thermal hardening of reactive compositions described above and is distinguished by cross electrical resistivity below 10 4 Ω·cm.
摘要:
The subject of the invention is a dual-chamber reactor for magnetic assisting of the chemical processes involving gases, liquids and solids, and chemical or biochemical reactions carried out by microorganisms equipped with two mixing chambers, the generator of rotating magnetic field, a housing with a top cover and a bottom with connecting pieces, characterized in that, it has a central cylindrical partition (2), which forms inside the reactor (1), the two, cylindrical (3) and an annular (4) chambers fixed to the cone-shaped bottom (5). The reactor has an outer cylindrical housing (6), wherein the generator (7) of the rotating magnetic field is placed, located between the top cover (8) and cone-shaped bottom (5). The outer cylindrical housing (6) is equipped with inlet pipe (9) and outlet pipe (10) with the thermal medium. The cone-shaped bottom (5) has a central outlet pipe (11), a top cover (8) has inlet pipe (12), for supplying additional chemicals into the reactor. Reactor (1), under the generator (7) has at least one inlet pipe (13) for the reaction medium. The system of reactor described above, is characterized in that the central outlet pipe (11) of the reactor (1) is connected to the inlet of the tank (28), which outlet is connected to the first circulation pump (30), wherein the tank (28) has a heating jacket (31).
摘要:
A composition for coating a cellulosic packaging material, according to the invention containing the biodegradable materials such as starch, glycerol, which is characterized by being a two-component mixture, wherein the first component comprises a mixture of starch, gelatine and glycerol or a mixture of glycerol and sorbitol, while the second component comprises a mixture of protein ingredients, the porophors and optionally starch. The amount of particular ingredients in the components is such that after the dissolution of both components in water, it permits to obtain a composition with the concentration of starch in the range of 10-17 wt%, gelatine concentration in the range of 10-12 wt% glycerol or a mixture of glycerol and sorbitol in the range of 5-11 wt%, the protein components concentration in the range of 5-10 wt% and the porophors concentration in the range of 3-5.5 wt%. A method for preparing a composition for coating a cellulosic packaging material according to the invention, comprising a mixing of the biodegradable materials such as starch, glycerol, subjecting thereof to the thermal treatment, which is characterized in that, gelatine, glycerol or a mixture of glycerol and sorbitol and starch are dispersed in water using a mechanical stirrer, then said mixture is heated to a temperature in the range of 50-100° C until a uniform consistency is achieved. Subsequently, the mixture is cooled down to a temperature in the range from 35 to 40°C with continuous stirring followed by adding the protein components and the porophors. A heat-insulating packaging material, in particular for the food products according to the invention, containing a cellulosic material coated by a layer of foamable coating which is characterized by that said material has a least one layer of a foamable coating obtained from aforementioned composition coated on the cellulosic material. A method for preparing a heat insulating packaging material, according to the invention, containing a layer of foamable coating which comprises a coating of cellulosic material by a coating from the biodegradable materials, drying and foaming, which is characterized by that, the cellulosic material is a one-side coated by at least one layer of the composition obtained by the aforementioned method. The material is then preliminary dried and subjected to foaming with the application of known heating methods ensuring a uniform heating.
摘要:
A method for recovering polymer from printed PETG substrates, comprising the steps of: providing a printed PETG substrate with the print layer comprising pigments and/or dyes dispersed in a binder matrix; chopping the substrate into irregular strips and; treating the chopped substrate with a treating composition; wherein the treating composition is an aqueous azeotrope of an organic low molecular weight, polar solvent selected from the group consisting of ketones, aldehydes, alcohols and esters.
摘要:
The method of reducing an energy consumption by a thermoelectric refrigerator, according to the invention, equipped with a refrigeration chamber (1), refrigeration set (2) with an even number of thermoelectric modules (41, 42), heat exchangers (5, 7) and a fan (6) upon outer chamber's (1) side, temperature regulator (10) and electromagnetic relay (13), powered by DC grid, depending upon changing the configuration of thermoelectric modules (5, 7) from parallel to serial and back. However, the parallel module (5, 7) configuration is used in a moment of plugging the refrigerator in, as well as after crossing the inner chamber's (1) higher temperature threshold for regulator (10), while the serial module (5, 7) configuration is used after reaching the inner chamber's (1) lower temperature threshold for regulator (10). The method is characterized by, that during serial configuration, an inner chamber (1) fan (8) is supplied with the same voltage as the first thermoelectric module (41) synchronized with it, while during parallel configuration each fan, on an inner (8) and outer (9) side of a chamber (1) gets the same voltage as a corresponding thermoelectric module: the first (41) and the second (42) one, synchronized with it The thermoelectric refrigerator, according to the invention, having the DC grid powered refrigeration set with an even thermoelectric module number (5, 7) and the same-grid powered fan (6) on an outer chamber's (1) side, serially connected temperature regulator (10) and an electromagnetic relay (13), is characterized by having on inner chamber's (1) fan (8) connected in parallel with the first thermoelectric module (41), while the fan (6) on an outer chamber (1) is plugged in with DC grid or in parallel with the second thermoelectric module (42).
摘要:
A method for producing microcapsules, according to the invention, comprising of polyelectrolyte complex formation by introducing an aqueous solution of carrageenan or carrageenan hydrogel microcapsules to an aqueous solution of a cationic polymer containing quaternary amine groups, characterized in that the polymer with cationic character, containing quaternary amino groups, is poly(2-hydroxypropyl dimethyl ammonium chloride) and/or poly[oxyethylene(dimethylimino) ethylene(dimethylimino) ethylene dichloride].