23results about How to "Reduce mist" patented technology

The invention discloses pseudomonas TB392 and application thereof in degradation of pectin and generation of flavor substances in tobacco leaves, and belongs to the technical field of biology. The strain is preserved in the China General Microbiological Culture Collection Center on October 16, 2024, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) No.32230. The strain can produce pectinase at high yield, has the capability of reducing nicotine, can degrade macromolecular compounds such as carotenoid, starch, pectin, cellulose and the like in tobacco leaves, and can remarkably improve the content of flavor substances in the tobacco leaves. After the strain or the prepared microbial agent is applied to tobacco leaves, the quality of the tobacco leaves can be improved, and the use value of the tobacco leaves is improved.

The invention relates to the technical field of cigarette manufacturing, and discloses cigarette filter stick forming paper containing bamboo ultrafine powder and a preparation method thereof, the cigarette filter stick forming paper comprises the following raw materials by mass: 40-60 parts of wood pulp cellulose, 0-35 parts of tobacco stem ultrafine powder, 10-30 parts of bamboo ultrafine powder, 20-30 parts of a modified calcium carbonate filler, 12-16 parts of essence and 1-6 parts of a cigarette paper additive; the modified calcium carbonate is obtained by compounding calcium carbonate with zeolite powder and then modifying with glyceryl triacetate. By means of the method, smoke can have the fresh and sweet fragrance of bamboos, the smoke is enriched, the smoke state and the fragrance style are improved, offensive odor and irritation of tobaccos are reduced, and the smoking quality of cigarettes is improved.

The preparation method comprises the following steps: a, carrying out enzymolysis on a fenugreek extract to obtain fenugreek extract enzymatic hydrolysate; b, the fenugreek extract enzymatic hydrolysate and amino acid are subjected to a Maillard reaction, and a Maillard reaction product is obtained; and c, filtering the Maillard reaction product, collecting filtrate, evaporating to remove the solvent under reduced pressure, and dissolving with a propylene glycol solution to obtain the perfume. The fenugreek extract is used as a sugar source, amino acid is added as a nitrogen source, the Maillard reaction is carried out, the prepared Maillard reaction product is used for cigarette flavoring and charging, cigarette fragrance can be enriched, smoke can be fine and smooth, offensive odor of cigarettes can be reduced, irritation can be reduced, and the overall smoking quality of the cigarettes can be improved.

The present application belongs to the technical field of tobacco, and in particular, relates to a method and device for improving the comfort of aged tobacco. The method for improving the comfort of aged tobacco of the present application comprises: mixing a formic acid-ethanol aqueous solution with tobacco leaves having a water content of 10% to 15% for acidolysis reaction to obtain acidolysis-treated tobacco leaves; subjecting the acidolysis-treated tobacco leaves to ultraviolet radiation treatment to obtain tobacco leaves treated by acidolysis and ultraviolet radiation of a formic acid-ethanol aqueous solution; and balancing the moisture content of the synergistically treated tobacco leaves. The present application provides a method and device for improving the comfort of aged tobacco, which can appropriately reduce the strength and concentration by reducing the starch, protein and free nicotine content while maintaining the flavor style of tobacco leaves unchanged, and significantly reduce the irritation to the oral cavity, throat and nasal cavity, thereby quickly and significantly improving the comfort of tobacco leaf smoking, and effectively solving the technical defects of the existing methods for improving the comfort of aged tobacco, such as long processing time, treating the symptoms but not the root cause, and unknown and complex components of combustion products.

The present invention belongs to the field of papermaking reconstituted tobacco leaves, and specifically relates to a method for swelling tobacco stems, comprising: washing raw tobacco stems, conveying the washed tobacco stems through a screw conveyor, and the temperature in the screw conveyor is 60°C to 80°C and the relative humidity is 65% to 90%; steaming the obtained tobacco stems through a spiral stem steamer, the temperature of the steamed stems is 70°C to 120°C, and the time is 5-30 seconds; steaming the obtained tobacco stems through a tunnel-type stem steamer, the temperature of the steamed stems is 90°C to 120°C, and the time is 5-30 seconds; soaking the obtained tobacco stems in water at 60°C to 70°C, and separating the tobacco stems. The present invention also relates to a method for preparing reconstituted tobacco leaves, reconstituted tobacco leaves and applications, and tobacco products. The method of the present invention improves the swelling effect of tobacco stems, reduces the content of hot water solubles in substrates, and improves the tobacco stem extraction rate, substrate absorbency, product yield and sensory quality.

This invention discloses a respiratory protective face shield, comprising a helmet and a face shield that allows visible light to pass through. The face shield is located on the front of the helmet and is movably connected to the helmet, allowing it to cover the wearer's face. A transparent electrically heated film is provided in the transparent area of ​​the face shield that allows visible light to pass through. The helmet is equipped with a power supply component for providing electrical power. The electrodes of the electrically heated film are electrically connected to the power supply component. An air inlet is located on the rear of the helmet for connecting to an air supply device. An air passage is provided inside the helmet, with one end connected to the air inlet and the other end extending to the front of the helmet and communicating with the space between the face shield and the wearer's face. This invention provides a respiratory protective face shield that can reduce water vapor on the inner surface of the face shield during wear, ensuring a clear field of vision for the wearer.

The application discloses a preparation process of reconstituted tobacco leaf, which comprises the following steps: subjecting tobacco leaf raw materials to fresh air hot air treatment, and storing the tobacco leaf raw materials to obtain primary tobacco leaves with a water content of 15-25%; subjecting the primary tobacco leaves to hot air drying to obtain secondary tobacco leaves, wherein the hot air drying time is 10-20 min; and crushing the secondary tobacco leaves and preparing reconstituted tobacco leaves through a thick slurry method. The preparation process of the reconstituted tobacco leaf can reduce peculiar smell and irritancy, improve tobacco baking original aroma, improve sensory comfort, and improve sensory quality through the steps of multi-stage fresh air hot air drying, high-intensity drying and storage to ensure the water content.

The application discloses a tobacco extract preparation method, which comprises the following steps: (1) one-time feeding: preparing a carbonated salt-amino acid mixed aqueous solution, uniformly applying the mixed aqueous solution to tobacco raw materials, and standing at room temperature; (2) drying: performing heating treatment on the tobacco raw materials after feeding, and drying; (3) secondary feeding: uniformly applying a polyol to the dried tobacco raw materials; (4) extrusion: performing extrusion and puffing treatment on the tobacco raw materials after feeding, and obtaining treated tobacco raw materials; and (5) extraction: performing extraction and separation on the treated tobacco raw materials, and obtaining a tobacco extract. The carbonated salt-amino acid solution can improve feeding uniformity, improve the pH of the system to reduce nicotine, drying is beneficial to subsequent reactions, the polyol improves material fluidity and prevents extrusion die blockage, extrusion and puffing high-temperature and high-pressure degrade macromolecules, and the tobacco aroma is improved. The extract can be used for heat cigarettes, the aroma is richer, and the odor and irritability are obviously reduced.

The invention relates to the technical field of cigarette flavor preparation, and discloses a cigarette flavor additive and a preparation method thereof, and the cigarette flavor additive comprises a blueberry extract, a flavor enhancer, nerol, an alcohol flavor, ethyl benzoate, 4-hydroxybenzoic acid and ethanol. According to the invention, the blueberry extract is used as a perfume and the fragrance contained in the blueberry extract reduces the irritation, the blueberry extract is used for perfuming the cigarette, so that the cigarette fragrance can be improved, the effects of smoothing smoke, reducing offensive odor, improving aftertaste and the like are achieved, and the adopted flavor enhancer is thermally cracked in the cigarette burning and smoking process, so that the fragrance of the cigarette is improved. Organic acid components with unique fragrance are released, so that the purpose of effectively enhancing the flavor of cigarettes can be achieved, and the effects of improving the fineness and softness of smoke, increasing the thickness of the smoke and reducing offensive odor and irritation are achieved.

The invention discloses a composite biological inoculant for promoting alcoholization of crude tobacco, which is prepared by the following steps: by taking bacillus licheniformis CICC 10037, candida utilis CICC 1769 and thermolysis thermophila ATCC 27730 as core functional strains, respectively activating and enlarging culture, then carrying out thallus resuspension by using a stable protective agent solution consisting of trehalose, sodium glutamate and sodium carboxymethyl cellulose, and finally, carrying out fermentation, so as to obtain the composite biological inoculant for promoting alcoholization of crude tobacco. The three strains are mixed according to a specific volume ratio to prepare a compound bacterium suspension, and finally the compound bacterium suspension is uniformly adsorbed to a sterilized homologous tobacco powder carrier, so that macromolecular substances such as starch, protein and cellulose in tobacco leaves can be efficiently degraded through the synergistic effect of the three strains, and the variety and content of aroma components are remarkably increased; the method effectively reduces irritant substances such as ammonia and acetaldehyde and harmful ingredients such as nitrosamine specific to tobacco, reduces offensive odor and irritation, improves taste, ensures uniformity and stability of the alcoholization effect, and achieves multiple purposes of quality improvement, aroma enhancement, harm reduction and efficiency improvement in the crude tobacco alcoholization process.

The invention belongs to the technical field of tobacco flavors, and particularly relates to a preparation process and application of a fresh and sweet herb flavor prominent Maillard reaction flavor. The preparation method comprises the following steps: carrying out heating reflux extraction on fragments of tobacco leaves produced in Yunnan and fragments of lysimachia foenum-graecum hance to obtain an extract, mixing the extract, distilled water and compound amino acid, heating to obtain a Maillard reaction spice extract, carrying out supercritical carbon dioxide extraction on the Maillard reaction spice extract, combining extracts of two separation kettles, adding ethanol for dissolving, and carrying out vacuum drying to obtain the Maillard reaction spice. And freezing and separating the upper-layer ethanol solution to obtain the tobacco flavor with prominent fresh and sweet herb fragrance. Compared with independent lysimachia foenum-graecum hance absolute oil, Yunnan tobacco absolute oil and the tobacco flavor prepared by blending the lysimachia foenum-graecum hance absolute oil and the Yunnan tobacco absolute oil, the tobacco flavor prepared by the invention can better improve the harmony, richness, aroma quality and taste of smoke, reduce irritation and reduce offensive odor.

The invention discloses a preparation method of reconstituted tobacco. The preparation method comprises the following steps: (1) preparing tobacco raw materials; (2) sterilizing; (3) fermenting an aspergillus niger seed solution; (4) separating, and pulping the solid part; fermenting the liquid part by using Wickerhamomyces anomalus; (5) preparing tobacco paste; and (6) preparing the reconstituted tobacco. The invention further discloses the reconstituted tobacco. The preparation method provided by the invention effectively solves the problem of improving the quality of the paper-making reconstituted tobacco.

The invention belongs to the technical field of tobacco flavor preparation, and discloses a method for preparing tobacco flavor based on polysaccharide Maillard reaction and application of the tobacco flavor. The method comprises the following steps: dissolving amino acid and polysaccharide in a solvent according to a certain molar ratio to obtain a reaction material; putting the reaction materials into a reaction kettle, and carrying out Maillard reaction under a closed condition; and after the reaction is finished, rapidly cooling the reaction kettle to room temperature to obtain a Maillard reaction product. In the reaction process, polysaccharide is cracked into various reducing sugars step by step and is subjected to Maillard reaction with amino acid, so that the problems that monosaccharide participates in the Maillard reaction, the aroma is single, and the reaction is violent and difficult to control are effectively solved. When the tobacco flavor is applied to cigarettes, the irritation of smoke can be remarkably reduced, offensive odor can be covered, meanwhile, the smoke is softened, the aftertaste is improved, the smoke concentration is increased, and the baking fragrance and the sweet aftertaste are increased. The method is low in cost, simple in equipment and convenient to operate, can be put into production without modifying existing production equipment, and has a good industrial application prospect.

The present invention discloses a vehicle window defogger device based on the water vapor liquefaction principle, comprising a vehicle door, a vehicle window body is arranged on the side wall of the vehicle door, a permanent magnet is embedded in the side wall of the vehicle door, two symmetrically distributed slide grooves are arranged on the side wall of the vehicle door, a slide plate is slidably connected to the side wall of the slide groove, an electromagnet is embedded in the side wall of the slide plate, the S pole of the electromagnet is opposite to the S pole of the permanent magnet, a first electric contact is arranged on the side wall of the vehicle door, a second electric contact is arranged on the side wall of the vehicle door, a placement groove is opened on the side wall of the vehicle door, a sponge is placed on the bottom side wall of the placement groove, and the placement groove is located at the lower end of the vehicle window body. The present invention relates to the field of automobile equipment technology, and uses an electromagnet to generate magnetic force, and the permanent magnet and the electromagnet are opposite to each other with the same pole, so that when water mist is attached, the electromagnet is energized to push the water mist into the sponge.

The invention provides a preparation method of a thymol-like tobacco raw material, which comprises the following steps: mixing flue-cured tobacco and burley tobacco, and sterilizing to obtain mixed tobacco leaves; soaking the mixed tobacco leaves in the first fermentation liquor, and performing sealed fermentation to obtain a tobacco leaf raw material A; performing high-temperature and high-pressure treatment on the raw material A, and airing to obtain a tobacco leaf raw material B; and spraying the second fermentation liquor to the raw material B, performing sealed fermentation, taking out, performing high-temperature and high-pressure inactivation and color fixation treatment again, and airing to obtain a tobacco leaf raw material C. According to the tobacco leaf raw material sample prepared through the specific fermentation and treatment mode, the smell intensity, the indoor note intensity and the note intensity during smoking are all improved, the note characteristics and the richness degree are remarkably improved, the combustion rate of the tobacco leaf raw material is remarkably improved, the smoke state is remarkably improved, offensive odor is remarkably reduced, and the tobacco leaf raw material has the good taste. The comfort and the taste are also obviously improved.

The invention discloses a fragrance-producing golden ear strain and a use thereof. The golden ear strain or its fermentation liquid is used as a tobacco biological flavoring and added into cigarettes or cigars. The golden ear strain has good coordination with tobacco, can enrich the tobacco fragrance, reduce impurities and irritation, and increase the sweetness.

The invention relates to the technical field of gene engineering and enzyme engineering, and discloses an alpha-galactosidase mutant and a preparation method and application thereof, the amino acid sequence of the mutant is a wild type alpha-galactosidase amino acid sequence shown as SEQ ID NO.1, and the amino acid sequence of the mutant is a wild type alpha-galactosidase amino acid sequence shown as SEQ ID NO.2. The mutant is obtained by mutation of amino acid residues of one or more of the following sites: the 74th site, the 145th site, the 432th site, the 560th site and the 615th site; wherein the serial number of the amino acid site corresponds to a sequence as shown in SEQ ID NO. 1. The enzyme is extracted from bacillus megatherium, enzyme modification is carried out by adopting single-point mutation and saturated mutation technologies and through a free energy virtual screening coupling internal topological cavity engineering modification strategy, two-point mutants K74R and L432V with significantly improved enzyme activity are obtained, the mutants can rapidly degrade anti-nutritional oligosaccharides and polysaccharides in plant raw materials, and the anti-nutritional oligosaccharides and polysaccharides in the plant raw materials can be rapidly degraded. The compound can be used as an aroma enhancing enzyme to efficiently hydrolyze glucosidic bonds and release precursor aroma substances, and is applied to tobacco processing, plant extraction and essence and perfume industries.

The invention belongs to the technical field of tobacco flavor, and particularly relates to a preparation method and application of Maillard reaction flavor with outstanding glutinous rice flavor. Adding the glutinous rice bay leaves and the Yuyan tobacco leaves into rice wine to soak the leaves and stir-frying together to obtain a pretreated mixture of the glutinous rice bay leaves and the Yuyan tobacco leaves; the method comprises the following steps: respectively extracting a glutinous rice myrcia and tobacco leaf mixture with ethanol and water, and carrying out vacuum concentration on an extracting solution to obtain a crude extract; adding distilled water and amino acid into the crude extract, and carrying out Maillard reaction to obtain Maillard reaction feed liquid; and extracting the Maillard reaction material liquid by adopting supercritical carbon dioxide to obtain the tobacco flavor with harmonious sticky rice fragrance and roasted sweet fragrance smoke. Glutinous rice bay leaves and Yujin tobacco leaves are adopted as raw materials for the first time, feed liquid obtained after a Maillard reaction is loaded on silica gel, and then the tobacco flavor with the aroma characteristic is obtained through the supercritical extraction technology. When the spice is added into cigarettes, the cigarettes can be endowed with sticky rice fragrance and roasted sweet fragrance, the irritation of the cigarettes is reduced, and offensive odor is reduced.

This invention provides a centrifugal system and method for concentrating and removing impurities from tobacco alcohol extracts obtained through papermaking. The system includes a first feeding tank, a separator, and a second concentrated liquid feeding tank. The first feeding tank is equipped with a vertical stirrer, and has a concentrated liquid inlet, a reflux port, and a clean water inlet at the top, and an outlet at the bottom. The separator has an inlet and an outlet at the top. The second concentrated liquid feeding tank has a concentrated liquid inlet, a reflux port, and a clean water inlet at the top, and an outlet at the bottom. A concentrated liquid feeding pipeline is connected to the concentrated liquid inlet of the first feeding tank. The outlet of the first feeding tank is connected to both the reflux port of the first feeding tank and the inlet of the separator. The outlet of the separator is connected to the concentrated liquid inlet of the second concentrated liquid feeding tank. The outlet of the second concentrated liquid feeding tank is connected to both the reflux port of the second concentrated liquid feeding tank and a concentrator / evaporator. This system can effectively reduce the content of large-molecule insoluble matter in tobacco alcohol extracts and improve the quality of the extracts.

The invention discloses a gamma-hydroxypentanoic acid alcohol ester compound and a synthesis method and application thereof in tobacco, the chemical structural general formula is # imgabs0, and the synthesis method comprises the following steps: levulinic acid, alcohol perfume, a condensing agent, a catalyst and a solvent react under a stirring condition to generate a levulinic acid alcohol ester compound, and then the levulinic acid alcohol ester compound is subjected to hydrogenation reduction to obtain gamma-hydroxypentanoic acid alcohol ester. The compound prepared by the invention is stable and not easy to volatilize at normal temperature, uniformly releases gamma-valerolactone and alcohol perfume after being heated, and can effectively improve the smoking quality of cigarettes when being added into the cigarettes as a tobacco flavor enhancer.

The invention discloses a preparation method of reconstituted tobacco. The preparation method comprises the following steps: (1) preparing a tobacco raw material mixture; (2) carrying out first microbial fermentation; (3) secondary microbial fermentation; (4) carrying out third microbial fermentation; and (5) preparing the reconstituted tobacco. The invention further discloses the reconstituted tobacco. The preparation method provided by the invention effectively solves the problem of improving the quality of the paper-making reconstituted tobacco.

The invention relates to the technical field of essence, in particular to essence containing coffee and cocoa composite extracts and a preparation method of the essence. The essence is prepared from coffee extract, cocoa extract, isopulegol acetate, menthol, cinnamyl alcohol, linalool, starch sodium octenylsuccinate, locust bean gum, bis (lauramide glutamine) lysine sodium, an alcohol solvent and water. According to the present invention, the use amount of the alcohol solvent is reduced, and the starch sodium octenylsuccinate, the locust bean gum and the bis (lauramide glutamine) lysine sodium are adopted, such that the green safety of the essence is increased, and the disadvantage of the organic solvent on the human health and the environment is reduced. The essence disclosed by the invention has better heat-resistant and cold-resistant effects and excellent stability, is beneficial to storage, transportation and use, can also effectively improve the aroma quality of tobacco products and reduce offensive odor, and has better application prospects in products such as cigarettes, cigarettes, cigars and the like.

The invention discloses a method for fermenting cigar tobacco leaves by using pericarpium citri reticulatae extract, and belongs to the technical field of tobacco processing. According to the method, the crushed and sieved dried orange peel powder is subjected to ethanol extraction, then the extracting solution is subjected to vacuum freeze concentration, the dried orange peel extract is prepared, the extract is diluted and then sprayed to the tobacco leaves, and the tobacco leaves are subjected to quality improvement and aroma enhancement fermentation, so that efficient extraction and high-value utilization of dried orange peel components are achieved, and the additional value of the dried orange peel and products thereof is increased; the invention also provides a novel tobacco leaf quality-improving and aroma-enhancing method, and the tobacco leaves treated by the method disclosed by the invention are improved in sweet feeling, reduced in offensive odor and irritation, improved in mellowness and good in harmony.