14results about How to "Reduce sodium" patented technology

The invention provides low-sodium salt and a preparation method thereof, and belongs to the technical field of seasonings, and the preparation method comprises the following steps: adding water into pea meal, uniformly stirring, adjusting the pH value to 7-8, and adding a compound enzyme for enzymolysis to obtain an enzymatic hydrolysate; carrying out enzyme deactivation on the enzymatic hydrolysate, centrifuging to remove impurities to obtain supernate, and carrying out ultrafiltration and freeze drying to obtain pea zymolyte; and uniformly mixing the table salt and the pea zymolyte to obtain the low-sodium table salt. The pea zymolyte is formed by pea protein enzymolysis, the content of umami substances such as glutamic acid and aspartic acid in the pea protein is high, the glutamic acid and the aspartic acid are acidic peptides, and when the content of the acidic peptides in the zymolyte is higher than that of alkaline peptides, the salty taste characteristic of the zymolyte can be enhanced; the salty taste enhancer can be mixed with the salt for use, so that the content of sodium in food can be reduced while the salty taste is not reduced, and meanwhile, the delicate flavor of the food can be enhanced.

The invention relates to the technical field of extraction and utilization of electrolytic aluminum lithium-containing waste, in particular to a method for extracting lithium from electrolytic aluminum waste through ultrasonic strengthening. The method comprises the following steps: (1) coarsely crushing the electrolytic aluminum waste; (2) after the carbon is removed, the electrolytic aluminum waste is subjected to ultrasonic strengthening to strengthen the leaching of lithium, and the lithium is selectively leached by controlling the leaching acidity; (3) performing two-stage impurity removal on the lithium leaching solution; and (4) concentrating and denitrifying the impurity-removed liquid, precipitating lithium, carbonizing and crystallizing to prepare the battery-grade lithium carbonate. According to the method, carbon in the electrolytic aluminum waste is removed through a calcination or combustion method, leaching of lithium is strengthened through an ultrasonic strengthening method, meanwhile, the leaching condition is controlled to enable lithium in the waste aluminum slag to be dissolved out into a leaching solution, and aluminum, iron, sodium and most fluorine in the waste aluminum slag are not dissolved out and left in the leaching slag. And performing simple impurity removal, concentration and denitration on the leachate to prepare the battery-grade lithium carbonate. The method is simple in process and high in lithium extraction rate, and cryolite is mainly contained in leaching residues and can be utilized subsequently.

The invention discloses a processing method for quickly fermenting cured meat with low sodium salt without being limited by seasons, which comprises the following steps: pickling: putting meat blocks to be pickled into pickling liquid, and pickling at room temperature for 2-4 hours; air drying: taking out the pickled meat blocks, and air-drying moisture on the surfaces of the meat blocks; performing fermentation: putting the air-dried meat blocks into a sealed container, adding cooked vegetable oil, performing fermentation under the condition of 4-10 DEG C, and performing periodic detection in the sealed container; baking: taking out the fermented meat blocks, baking until the surfaces of the meat blocks are dry, and after baking, cooling the meat blocks to room temperature; according to the method, uncompleted fermentation or excessive fermentation is effectively prevented, so that the taste of the cured meat is better guaranteed; the sodium salt content of the preserved meat is effectively reduced, the health of consumers is facilitated, the processing time of the preserved meat is shortened, the production efficiency is improved, the processing method is not limited by seasons, and large-scale production can be carried out in any season.

The invention discloses a low-sodium-salt light-truck pure natural meat product pickling material and a preparation process, and the raw materials comprise the following components in parts by weight: 10-15 parts of Albi Mountain natural low-sodium salt, 5-10 parts of pineapple juice, 0.5-2.5 parts of beet juice, 1-3 parts of sweet pepper powder, 5-10 parts of momordica grosvenori powder, 0.5-1.5 parts of ginger juice, 5-10 parts of black pepper, 5-10 parts of onion juice and 2-3 parts of white pepper powder. 5-15 parts of fruit and vegetable fibers and 5-15 parts of water; compared with the prior art, the method has the advantages that sodium salt is replaced by natural low-sodium salt of Albesan mountain, so that the content of the sodium salt is reduced by 50%; the siraitia grosvenorii powder contains siraitia grosvenorii glucoside which replaces white granulated sugar to play a role of light truck; the pineapple juice plays a role in tenderizing meat; the beet juice and the sweet pepper powder have a coloring effect; the ginger juice, the black pepper, the white pepper and the onion juice have the flavor effect, the production process is simple, the yield is high, and health, nutrition, delicious taste and no burden are achieved.

The invention belongs to the technical field of biological medicines, and particularly discloses a low-sodium salt-reducing freshness-increasing metagen as well as a preparation method and application thereof. The low-sodium, salt-reducing and freshness-increasing after-generation element disclosed by the invention comprises an inactivated thallus of the Lactobacillus paracasei Probio-37 and a metabolite of the Lactobacillus paracasei Probio-37, and the metabolite of the Lactobacillus paracasei Probio-37 can be used for preparing the low-sodium, salt-reducing and freshness-increasing after-generation element of the Lactobacillus paracasei Probio-37. The preparation method of the metagen comprises the following steps: (1) activating a strain, and carrying out enlarged culture to obtain a seed solution of the lactobacillus paracasei Probio-37; (2) inoculating the seed solution in the step (1) into a fermentation culture medium, carrying out fermentation culture until the pH value is 4.5-4.6, and stopping fermentation to obtain a fermentation solution; (3) inactivating the fermentation liquor in the step (2); and (4) carrying out decoloration, concentration and spray drying on the inactivated fermentation liquor to obtain the metabiotics. According to the snack prepared from the afterbiotics, the effects of reducing salt without reducing freshness and reducing sodium without reducing saltiness are achieved, the taste and smell of the snack can be improved, and the scientific salt reducing target of reducing sodium without reducing saltiness is achieved.

The invention belongs to the technical field of food processing, and discloses a compound fermented sauce as well as a preparation method and application thereof. Aiming at the problem that sensory and physicochemical indexes are not up to the standard due to short fermentation time of the existing short-term fermented thick broad-bean sauce product, the method comprises the following steps: mixing soybean and red bean extracting solutions, and performing two-stage high-pressure and fermentation treatment to obtain pretreated soybeans and fermentation liquor; the fermentation liquor is subjected to spray drying treatment, the pretreated soybeans are subjected to koji making and then added into a bean paste fermentation system for 120-150 d short-term fermentation treatment, so that the flavor of the prepared compound fermented sauce is greatly improved, the content of amino acid nitrogen is obviously increased, meanwhile, addition of a large amount of edible salt in the fermentation process is avoided, and the content of sodium in the fermented sauce is reduced. The compound fermented sauce disclosed by the invention is reddish brown, oily and glossy, has better sensory indexes and physical and chemical indexes, is applied to the hotpot condiment, and can remarkably increase the flavor substance types of the hotpot condiment, so that the overall quality of the hotpot condiment is greatly improved.

The invention relates to the technical field of molecular sieve materials and preparation thereof, in particular to a preparation method of a low-sodium hydrothermal ultra-stable molecular sieve, which comprises the following steps: 1, mixing a silicon source and a sodium metaaluminate aqueous solution, and aging to obtain a guiding agent; 2, adding a sodium metaaluminate aqueous solution, a guiding agent and aluminum sulfate into a silicon source to obtain aluminosilicate gel; 3, heating and crystallizing to obtain a NaY type molecular sieve; 4, adding the NaY type molecular sieve into a first cation exchanger to obtain a first-exchange molecular sieve slurry, filtering, carrying out belt exchange, and washing to obtain a first-exchange molecular sieve; 5, carrying out primary flash evaporation and primary roasting to obtain a one-time-exchange and one-time-roasting molecular sieve; and 6, adding the one-time-exchange and one-baking molecular sieve into a first cation exchanger, mixing to obtain a two-time-exchange and one-baking molecular sieve slurry, filtering and washing to obtain the two-time-exchange and one-baking molecular sieve. While the sodium content of the Y-type molecular sieve is reduced, the preparation efficiency of the Y-type molecular sieve is improved.

This invention discloses a method for preparing nano-boehmite and its application in lithium-ion battery separators, belonging to the field of inorganic nanomaterial preparation technology. The method includes five steps: raw material calcination and activation, preparation of precursor slurry, hydrothermal synthesis reaction, washing and filtration, and drying and depolymerization. Calcination is carried out in a dynamic calcination furnace, whose exhaust mechanism can promptly remove water vapor. During discharge, the switching mechanism automatically opens the discharge cover, achieving continuous production with no material sticking to the wall and no residue. The obtained nano-boehmite is characterized by low sodium content, uniform particle size, and good dispersibility. This material can be formulated with binders and other agents to form a ceramic coating slurry. After coating and drying, a robust nano-ceramic coating is formed on the surface of a polyolefin-based membrane. This coating significantly improves the thermal stability, electrolyte wettability, and puncture resistance of the separator, thereby improving the battery's safety performance and cycle life.

This invention discloses a pressure-resistant, high-gravity reaction device and a method for preparing low-sodium boehmite. The device includes a packing layer, which is divided into an upper packing layer and a lower packing layer. The upper packing layer is equipped with an upper baffle and an upper packing annular column. The upper baffle is a disk with one or more concentric concave annular grooves, and the upper packing annular column is a multi-layered concentric annular column filled with packing. The lower packing layer is equipped with a lower baffle and a lower packing annular column. The lower packing annular column is a multi-layered concentric annular column filled with packing, and the lower baffle is a disk with at least one concentric concave annular groove, which is arranged radially from the outer edge to the inner edge. The special packing structure solves the sealing problem without adding new sealing devices, controls the fluid flow path, is suitable for pressurized conditions, and improves mass transfer efficiency. Using this device in processes such as carbon fractionation for preparing boehmite slurry, rapid slurry heating, and sodium-free aging not only prevents the generation of impurities but also effectively reduces the sodium content of the product.

The invention provides low-sodium pseudo-boehmite and a preparation method of the low-sodium pseudo-boehmite. The preparation method comprises the following steps: uniformly mixing a sodium-containing aluminum source, a fatty amine compound and water to obtain slurry A; wherein the mass ratio of the sodium-containing aluminum source to the fatty amine compound is (0.1-1.5): 1; adding an aluminum salt aqueous solution into the slurry A for reaction, and filtering to obtain a filter cake B; washing the filter cake B with an ammonium salt aqueous solution to obtain a filter cake C; and heating and aging the filter cake C, filtering, washing and drying to obtain the low-sodium pseudo-boehmite. The sodium-containing aluminum source is firstly mixed with the fatty amine compound, so that the elution efficiency of sodium ions from the pseudo-boehmite can be improved, and the content of the sodium ions in the pseudo-boehmite is reduced. In addition, ammonium ion exchange is introduced before pseudo-boehmite is formed, so that the exchange efficiency between ammonium ions and sodium ions is enhanced, and the sodium content is further reduced.

The present invention provides a low-sodium submicron α-alumina powder and a preparation method and application thereof, and relates to the technical field of powder materials. The preparation method of the low-sodium submicron α-alumina powder provided by the present invention comprises the following steps: mixing industrial alumina, an organic acid, a dispersant and water, adjusting the pH value of the obtained dispersion to 7-7.5, and obtaining a slurry; subjecting the slurry to a filter press treatment to obtain a low-sodium industrial alumina powder; mixing the low-sodium industrial alumina powder with a magnesium-containing compound and a rare earth oxide, and calcining to obtain a low-sodium submicron α-alumina powder. The low-sodium submicron α-alumina powder prepared by the present invention has a low sodium content and high purity, and the original crystal size is submicron. The process does not add mineralizers such as boron and halides, realizes the controllable growth of the original crystal, and does not pollute the production equipment, which is convenient for large-scale production.

The invention provides a low-sodium high-crystallinity Y-type molecular sieve and a preparation method thereof. The preparation method comprises the following steps: mixing and pulping a NaY molecular sieve, a first inorganic salt and water to form slurry, adding an acidic buffer solution to form a first solution, adjusting the pH value of the first solution to 3.8-4.0, and carrying out ion exchange, filtration, washing and wet baking to obtain an intermediate molecular sieve; and mixing and pulping the intermediate molecular sieve, a second inorganic salt and water to form a slurry, adding an alkaline buffer solution to form a second solution, adjusting the pH value of the second solution to 10.5-12, and carrying out ion exchange, slurry filtration, water washing and wet baking in a pressurized environment to obtain the low-sodium high-crystallinity Y molecular sieve. The invention also provides the low-sodium high-crystallinity Y-type molecular sieve prepared by the preparation method. The preparation method can effectively reduce the sodium content of the molecular sieve and prevent the crystallinity of the molecular sieve from being damaged.

The application relates to the technical field of inorganic porous materials, and particularly discloses a preparation method of pseudo-boehmite for chloromethane. The preparation method comprises the following steps: S1: adding a sodium-free aluminum salt, zirconium nitrate pentahydrate and tetrabutyl titanate into a mixed solvent, adding a complexing agent, then adding nano-boehmite, uniformly mixing, adjusting the pH value to 7.5-8.0, increasing the temperature to 25-35 DEG C, mixing, adjusting the pH value to 5.5-6.0, mixing, and obtaining a uniform sol; S2: mixing urea and ammonium bicarbonate in water, adding zirconium ammonium carbonate, and obtaining a mixed solution B; S3: adding the mixed solution B into the uniform sol, uniformly mixing, performing gradient temperature reaction, performing solid-liquid separation, washing, drying, and obtaining the pseudo-boehmite for chloromethane. The pseudo-boehmite for chloromethane prepared by the application has extremely low sodium content, high specific surface area and excellent thermal stability.

The invention relates to the technical field of seasoning processing, in particular to a preparation method of a rare edible mushroom byproduct salt-reducing and freshness-increasing compound seasoning, which is characterized in that processing byproducts of oudemansiella radicata, pleurotus eryngii, volvariella volvacea, tricholoma matsutake, morchella esculenta, cordyceps militaris and lentinula edodes are used as main raw materials, and are compounded with apples and carrots to prepare the rare edible mushroom byproduct salt-reducing and freshness-increasing compound seasoning. The preparation method comprises the following steps: fully releasing delicate flavor components by virtue of a synergistic process of steam explosion, belt type microwave flavor enhancement and ultrasonic-assisted directional enzymolysis in sequence, compounding with a flavor enhancement material, low-sodium salt and a filling agent, and finally granulating and drying to obtain a finished product. According to the method, high-value utilization of edible mushroom byproducts is achieved, the sodium chloride content of the prepared seasoning is smaller than or equal to 20%, the sodium content is remarkably reduced, meanwhile, through the synergistic effect of natural freshness increasing components, the product is rich in delicate flavor and rich in flavor level, and the healthy target of reducing salt without freshness is achieved. The method is efficient in process, natural in product and suitable for industrial production.