31results about How to "Improve freezing ability" patented technology

The present invention relates to one kind of stuffing for roasted food and its preparation process. The stuffing consists of sugar 10-30 wt%, modified starch 0-11 wt%, hydrophilic colloid 0.1-0.6 wt%, steamed monoglyceride 1-5 wt%, potassium sorbate 0.01-0.1 wt%, food water preserver 5-30 wt%, edible essence and/or edible color 0.2-0.5 wt%, and water for the rest, with water content being less than wt%. The stuffing has the synergistic effect of colloid and modified starch, high flowability, high water preserving capacity, high freezing resistance and stable quality, and the roasted food with the stuffing has good taste.

The invention provides a composite protective agent for increasing the freeze-drying survival rate of lactobacillus plantarum and a preparation method thereof. The protective agent is prepared from soybean polysaccharide, galactose, fructo-oligosaccharide, trehalose, skimmed milk, proline and distilled water. The preparation method includes the steps that the distilled water is divided into three parts, and soybean polysaccharide, galactose, fructo-oligosaccharide and trehalose are added to one part for dissolution and sterilization; the skimmed milk is added to another part of the distilled water for dissolution, and a skimmed milk solution is obtained and sterilized; proline is dissolved in the remaining distilled water, and membrane filtration sterilization is conducted; the three prepared solutions are evenly mixed under the sterile condition, and then the composite freeze-drying protective agent is obtained. According to the freeze-drying protective agent for lactobacillus plantarum, a freeze-drying protective additive is added in the fungus powder preparation process, the anti-freezing capacity of fungi can be improved, and therefore the freeze-drying survival rate of the fungus powder is increased, the storage period is long, and the survival rate is not likely to be reduced. The freeze-drying survival rate of the prepared fungus powder of lactobacillus plantarum ranges from 82.73% to 93.26%, and the viable count of the fungus powder ranges from 1.14*10<11> cfu/g to 1.98*10<11> cfu/g.

The invention provides a super-hydrophobic aluminum material/zinc material and a preparation method and application thereof. The method comprises the following steps of sequentially washing the aluminum material/zinc material in acetone and alcohol through an ultrasonic way to obtain a part to be processed; placing the part to be processed in the previous step in the water at the temperature of 50DEG C to 100DEG C for 0.5 to 4h; and further carrying surface energy substance decoration treatment for the part to be processed obtained in the previous step. The super-hydrophobic aluminum material prepared by the method has a nano flaky silk-shaped surface structure, the prepared super-hydrophobic zinc material has a nano compact coarse protruded surface structure, a contact angle of water drop on the surface of the aluminum material/zinc material is 140DEG to 170DEG, and a rolling angle is less than 10DEG C. The method is simple in process, good in repeatability and low in cost. The super-hydrophobic aluminum material/zinc material is applicable to the outer wall of a pipeline, the surface of ships or the outer wall of an electric wire, capable of effectively improving the hydrophobicity, self-cleaning property and anti-freezing property and prolonging the service life.

The invention discloses a method for improving the in-vitro fertilization effect of unfrozen pig sperms. The method comprises the following operation steps: (1) taking out frozen sperms, and unfreezing the frozen sperms; (2) cleaning the unfrozen seminal fluid with fertilization operating fluid, centrifuging twice, cleaning centrifugal precipitate with mTBM energetic fluid, centrifuging once, resuspending, and culturing to obtain energetic seminal fluid; (3) picking out a cumulus-oocyte complex from the ovary from which the follicular fluid is extracted under a microscope, culturing, taking out oocytes, and removing the cumulus; and (4) dropwise adding the obtained seminal fluid into each small fertilization cell, putting the small fertilization cells into an incubator for culture, and then washing off sperms attached to the oocytes to finish in-vitro fertilization culture. According to the invention, caffeic acid phenethyl ester and polyvinylpyrrolidone with corresponding concentrations are jointly added into the freezing base solution I, and the caffeic acid phenethyl ester and polyvinylpyrrolidone generate a synergistic effect so that the vitality, plasma membrane integrity rateand DNA integrity rate of the unfrozen pig sperms can be effectively improved, and the in-vitro fertilization effect of the unfrozen pig sperms is further improved.

The invention discloses a streptococcus thermophilus freeze-drying protective agent and a preparation method thereof. The streptococcus thermophilus freeze-drying protective agent comprises the following components in parts by mass: 10-20 parts of dried skim milk, 3-10 parts of raffinose, 4-10 parts of soybean oligosaccharides, 1.05-5.0 parts of dextran D40, 0.3-0.8 parts of sodium tripolyphosphate, 0.005-0.02 parts of propylgallate and 100 parts of distilled water, wherein the soybean oligosaccharides and the dextran D40 can both be purchased from LUOSHENBO science and technology Ltd.. The anti-freezing ability of thallus can be increased by adding a freeze-drying protective agent during a thallus powder preparing process, thus the freeze-drying survival rate of the thallus powder can be increased, the storage period can be longer, and the survival rate can not be easily lowered.

The invention provides a lactobacillus acidophilus anti-freeze culture medium and an application method thereof. The culture medium includes the following components by weight: 16-20 g of glucose, 0.4-0.8 g of fructus tribuli polysaccharide, 3-5 g of yeast extract, 4-6 g of sodium chloride, 0.3-0.5 g of mannitol, 0.8-1.2 g of sodium glutamate, 8-12 g of soybean peptone, 0.5-2.0 g of diammonium hydrogen citrate, 0.2-0.5 g of betaine, 1.0-2.5 g of dipotassium phosphate, 0.1-0.2 g of MgSO4, 0.5-1.0 ml of Tween-80 and 1,000 ml of distilled water. The culture medium has the advantages that: after lactobacillus acidophilus is cultured by using the anti-freeze culture medium, the freeze-dry survival rate of the lactobacillus acidophilus can reach up to 79.54 percent, and viable count of fungal powder reaches up to 4.09*10<11> cfu/g; and the lactobacillus acidophilus MRS (de Man, Rogosa and Sharp) broth is used for culture, so that the freeze-dry survival rate of the prepared fungal powder isonly 49.72 percent, and the viable count is only 1.24*10<11> cfu/g.

The invention provides a heat exchanger with high heat exchanging efficiency, small resistance, difficult scale formation and small vibration, comprising an external tube with a water inlet and outlet and a plurality of spiral heat exchange tubes in the external tube; wherein the two ends of the external tube are respectively connected with a tube plate hermetically; the two ends of the heat exchange tubes are hermetically connected to the tube plate; the external tube and the spiral heat exchange tubes are straight tubes; the walls of the heat exchange tubes are provided with three spiral lines uniformly distributed on a same section; and the spiral lines between adjacent heat exchange tubes are contacted.

The invention belongs to the technical field of unmanned aerial vehicles, and discloses a high-altitude flight antifreezing system of an unmanned aerial vehicle. The system comprises heating structures, power supply batteries, a vehicle-mounted controller, a wireless transreceiver module and a ground remote control terminal, wherein the heating structures are connected with the power supply batteries through control switches to obtain electric energy to generate heat, and are distributed on windward sides of wings and empennages of the unmanned aerial vehicle; the control switches are connected with the vehicle-mounted controller to control the power supply of the heating structures; and the vehicle-mounted controller communicates with the ground terminal control terminal through the wireless transreceiver module. The system is provided with the heating structures on the wings and the empennages of the unmanned aerial vehicle to deal with the problem of freezing of the windward surfaces in the high-altitude flight so as to prevent the freezing from influencing the aerodynamic configuration and causing signal transmission distortion; and meanwhile, a remote control communication mechanism is established to realize flexible deicing and antifreezing control and prevent freezing.

The invention relates to an anti-wrinkle repair essence face cream. The anti-wrinkle repair essence face cream comprises the following components in percentage by mass of 3.7-6.0% of an active repaircomponent,10.0-20.0% of an auxiliary repair component, 12.5-20% of a moisturizing component, 2.5-4.0% of an emulsifying component, 0.4-0.8% of a chelating agent, and the balance of water. According tothe anti-wrinkle repair essence face cream, the composition is an active repair component of oligopeptide-1, sea fennel callus culture filtrate, an daemonorops draco extract and argania spinosa kernel oil, and after the anti-wrinkle repair essence face cream is used, fine lines can be effectively flattened, dry lines and wrinkles are reduced, skin aging is retarded, the phenomena of dryness and looseness can be effectively improved, and the skin is moisturized and smooth and is high in elasticity.

The present invention relates to an insulating coating composition, a substrate coated with such an insulating coating composition, and a method for protecting a substrate using the insulating coatingcomposition. The present invention relates to an insulating coating composition comprising at least the following components: a) a chemically toughened epoxy resin component wherein the toughening segments are elastomeric segments bonded to the epoxy resin by chemical reaction and the proportion of toughening segments is 20-49% by weight, based on the total weight of the chemically toughened epoxy resin component; b) a curing agent; c) reinforcing fibers; and d) a low density filler having a density in the range of 0.05-0.7 g/cm3, preferably 0.08-0.5 g/cm3, more preferably 0.1-0.4 g/cm3.

The invention relates to a liquor production method, and particularly discloses an oak barrel liquor clarification method which comprises the step of performing membrane filtration on oak barrel liquor; wherein the barrier molecular weight of a filter membrane used in the membrane filtration step is 250,000-300,000 Daltons. The method has the advantages that the technical problem of turbidity of the liquor in an oak barrel after pulp addition and alcohol content reduction and during storage on the premise of keeping the original taste and color of the oak barrel liquor is solved. The method has the advantages that the filtering precision is high, the filtering flow is large, the color, flavor and taste of the oak barrel liquor are not damaged, the turbidity of the oak barrel liquor can beeffectively removed after the oak barrel liquor is filtered by a device, the oak barrel liquor is not turbid again after being frozen for 72 hours at the temperature of-10 DEG C, and the freezing resistance and low-temperature stability are effectively improved.

The invention relates to an anti-freezing anemometer tower. The anti-freezing anemometer tower comprises a tower drum, and at least one anemometer is arranged on the tower drum. Multiple height faces in the middle of the tower drum are connected with pull ropes arranged at angle intervals respectively, the pull ropes are arranged in a tightened mode, and the other ends of the pull ropes are fixed to the ground; the tower drum is formed by multiple tower drum segments which are coaxially stacked from bottom to top in sequence; the pull ropes are made of a high-temperature-resistant fireproof material, and the periphery of each pull rope is coated with an anti-freezing agent for preventing frost attachment. As the outer parts of the pull ropes are coated with the anti-freezing agent, the outer surface of the anemometer tower is not prone to frost attachment, accumulation of frost and snow on the anemometer tower is reduced, the anti-freezing capacity of the anemometer tower is improved, and the accuracy of detection data of the anemometer tower under the severe environment is remarkably improved. Meanwhile, the anti-freezing anemometer tower is simple in structure, remarkable in effect and suitable for utilization and popularization.

The invention relates to an anti-freezing wind measurement tower. The anti-freezing wind measurement tower comprises a tower tube arranged vertically, and at least one wind measurer is arranged on the tower tube; a plurality of pull ropes arranged at angle intervals are connected to the middle of the tower tube, the pull ropes are arranged in a tightened mode, and the other ends of the pull ropes are fixed to the ground; the tower tube is formed by connecting a plurality of tower tube sections end to end in sequence from bottom to top. The anti-freezing wind measurement tower is characterized in that the periphery of each tower tube section is coated with an anti-freezing agent preventing frost attachment. By coating the exteriors of the pull ropes and the exteriors of the tower tube sections with the anti-freezing agent, the outer surface of the wind measurement tower is not prone to frost attachment, accumulation of frost or snow on the wind measurement tower is reduced, the anti-freezing capability of the wind measurement tower is improved, and the data detection accuracy of the wind measurement tower in hostile environments is significantly improved. Meanwhile, the anti-freezing wind measurement tower is simple in structure and method, significant in effect and suitable for use and popularization.

The invention relates to the technical field of degradable packaging film bags, in particular to a novel biodegradable frozen product packaging film bag. The packaging film bag is formed by compositing an outer-layer degradable heat sealing film and an inner-layer cellulose film in a solvent-free mode. The degradable heat sealing film is composed of PBAT with the mass ratio being 60% and PLA with the mass ratio being 40%. The cellulose film is prepared by polymerizing 30% by mass of polyester polyol, 50% by mass of aliphatic polyester and 20% by mass of polyvinyl alcohol. The problem that a freezing composite film bag is non-degradable and has great harm to the environment is solved. According to the packaging film bag, the pollution to the environment is reduced due to the characteristic of the degradable material, and meanwhile, the walking requirement of a modern packaging machine and the material freezing function requirement are met, so that the packaging film bag is suitable for application and popularization.

The invention relates to a concrete product surface frozen damage prevention material. The concrete product surface frozen damage prevention material is formed by hydroxyl silicone oil, y-aminopropyl triethoxysilane, cross-linking agents, hexamethyldisilazane and dibutyltin dilaurate. The hydroxyl silicone oil, the y-aminopropyl triethoxysilane and the cross-linking agents are sequentially added into a reaction still, and the reaction still is started to blend and heat the mixture; a vacuum valve is turned on to start to vacuumize; the hexamethyldisilazane and the dibutyltin dilaurate are sequentially added into the reaction still, vacuumizing and reacting are continued; finally, a product is canned,, sealed and stored under the protection of nitrogen, and the finished concrete product surface frozen damage prevention material is obtained. The material is small in molecular weight, high in permeability and capable of keeping good elasticity within the temperature ranging from minus 50 DEG C to 200 DEG C and has remarkable weather ageing resistance and high-temperature and low-temperature resistance, and therefore the weather resistance of concrete products can be improved. In the using process, the material is sprayed or brushed to the surfaces of the concrete products, and the frozen damage resistance of the surfaces of the concrete products can be effectively improved.