2376 results about "Tobacco leaf" patented technology

In order to use a commercially available cigarette or cigar as it is, vaporize nicotine from the tobacco leaves, and enable inhalation of the vaporized nicotine without burning the product, a non-combustion smoking tool comprises a slender heater 1 having a sharp end which is directly inserted into a commercially available cigarette or cigar 100 to directly heat the leaves of the cigarette or cigar by the heater so as to vaporize nicotine contained in the tobacco leaves and enable inhalation of the vaporized nicotine.

The invention relates to a reconstructed tobacco coating liquid component-component group chemical kitchen combination, coupling preparation, and a coupling preparation process. Discarded waste tobacco leaves and stems are subjected to presoaking and enzymatic leaching or extraction to make tobacco leaf or stem enzymatically-leached/extracted solution, or tobacco leaf and stem mixed leached/extracted solution, certain components and component groups such as protein, pectin, chloride, nicotine, nitrosamines, nitrates and the like in the tobacco leaf and stem leached/extracted solution or tobacco leaf and stem leached/extracted mixture can be selectively converted, reduced or removed by combination of enzymolysis, Maillard reaction conversion, membrane separation/concentration or column separation, freeze separation, ethanol precipitation and the like, and the coupling preparation process for chemical components and component groups in the chemical kitchen, and accordingly, recombination or fitting, combination, regulation and coke reduction and harm reduction of the chemical components and component groups of the reconstructed tobacco coating liquid are achieved, quality of reconstructed tobacco is improved, and industrial technical integration and innovation on combination and coupling of the reconstructed tobacco coating liquid are realized.

The invention discloses Bacillus subtilis, which is named Bacillus subtilis. The Bacillus subtilis was collected in China General Microbiological Culture Collection Center on January 15th, 2009, with a collection number of CGMCC No.2843. The Bacillus subtilis strain disclosed by the invention is screened from tobacco leaf habitats. Experiments prove that the fermentation liquor of the strain has a strong inhibition effect on fungal pathogens such as Alternaria alternate and pepper anthracnose and demonstrates high prevention effect on Alternaria alternate, tobacco black shank, pepper anthracnose, tomato wilt, phytophthora melonis Katsura, verticillium dahlia and the like and has high growth promoting effects on tobacco, pepper, cucumber, tomato and eggplant. Therefore, the Bacillus subtilis disclosed by the invention can be used for preparing biological bactericides for preventing and controlling fungi in tobacco and vegetables and can be used for preparing growth promoting agents for promoting the growth of tobacco or vegetables.

A tobacco product is formed by rolling moistened tobacco leaves about a cylindrical form casing and allowing the leaves to dry to form a shell. After the form casing is removed a consumer can fill the shell with crushed tobacco leaves of a favorite blend, thereby eliminating some steps in the making of a “roll-your-own” tobacco product.

The present invention discloses a new-type snuff and its preparation method. It is made up by using dried tobacco leaf, dried natural vanilla and functional auxiliary material according to the mixing ratio of 1:0.8:0.2 through a certain preparation process. It can greatly reduce nicotine, tar and other harmful matter contents.

The invention relates to an automatic grading system and an automatic grading method based on mass tobacco leaf data. The automatic grading system belongs to a system for carrying out analysis, storage, retrieval and automatic grading on tobacco leaf images by utilizing computer vision, image analysis, machine learning, big data retrieval and artificial intelligence technological algorithms. A mass data retrieval technology is introduced into an automobile tobacco leaf grading system, and corresponding databases and efficient retrieval engines are built, so grading results are more accurate, and the big data concept can become an irresistible trend along with the computer technology development. An artificial intelligence expert system algorithm is introduced, tobacco leaf knowledge in the specific fields is utilized for constructing an expert knowledge base, various complicated tobacco grading problems which can only be solved by human experts are simulated, and the computer intelligence with the same problem solving capability as the experts in the field is reached.

The invention discloses a method for designing the formulation combination of tobacco leaf, which comprises the following steps: the design objective of cigarette products is determined; the requirement for the main chemical composition of the objective is determined; according to the experience, formulation personnel preliminarily select one representative tobacco leaves respectively from base cigarette, auxiliary material cigarette and filler; according to the similarity of the base cigarette and the compatibility of the auxiliary material cigarette and the filler, the rest tobacco leaf materials are selected; the final tobacco leaf materials used for the formulation are determined by the formulation personnel according to the storage rate of tobacco leaf, absolute degree of association and smoke panel test; the formulation cost is taken as evaluation function of fitness, and the proportion of the chemical composition, the main materials, the auxiliary materials and the filler are taken as constraint condition, the genetic algorithm is searched. The invention overcomes the deficiency that the prior art can not ensure the aesthetic quality, product style and flue gas index of the formulation of tobacco leaf to be in accordance with design requirements, and provides a method which supplies multiple formulation combinations that are in accordance with requirements, reduces the cost and lightens the workload of the formulation personnel, thus being widely applied to the field of cigarette production.

The invention discloses a cured tobacco type low-tar cigarette prescription and preparation thereof. The cured tobacco type low-tar cigarette comprises cut tobacco, a filter rod, and cigarette paper. The cut tobacco is prepared by: 15-22 by weight parts of faint scent type tobacco leaf, 28-40 by weight parts of aroma type tobacco leaf, 25-35 by weight parts of middle scent type tobacco leaf, 8-15 by weight parts of air-cured tobacco, 10-20 by weight parts of papermaking flake, 10-20 by weight parts of stalk. The middle scent type tobacco leaf in the prescription is processed by tobacco leaf scent type modifier, so as to add fragrance to tobacco leaves, and modify scent type. The faint scent type tobacco leaf in the prescription is processed by cured tobacco leaf tar lowering fragrance adding agent, so as to make faint scent feature more outstanding and lower tar releasing quantity. An odor-absorbing modifying agent and a fluid producing agent are added combined with perfuming in cigarette making process, and a safe cured tobacco type low-tar cigarette with fragrant, gentle smell, and obvious individual characteristic. Tar content of the cured tobacco type low-tar cigarette is 3mg-8mg per one cigarette.

The invention discloses quaternary composite electric heating incombustible cigarette, and belongs to the technical field of heating incombustible cigarette. The quaternary composite electric heating incombustible cigarette consists of a heating segment, a guide segment, a cooling segment and a filtering segment, wherein the heating segment is a layered smoking stick made of regenerated tobacco, bamboo fiber paper or coating molding paper; the guide segment comprises a first hollow filter stick and is connected with the heating segment; the cooling segment comprises a second hollow filter stick and is connected with the guide segment; the airflow retention area of the second hollow filter stick is larger than that of the first hollow filter stick; the filtering segment is connected with the cooling segment. The quaternary composite electric heating incombustible cigarette is applicable to heating devices of different heating modes of central heating, peripheral heating and the like, and is also applicable to heating incombustible cigarette devices of different device specifications; on the premise that the smoke quantity of cigarette is ensured, the temperature of fume entering mouths is lowered, and certain harmful substances are adsorbed; mental and physiological needs of customers can be relatively well met.

The invention discloses a method for improving the reconstituted tobacco paper-base quality through adding calcium carbonate and a reconstituted tobacco paper-base, belonging to the technical field of cigarette production. The method for improving the reconstituted tobacco paper-base quality through adding calcium carbonate comprises the steps of soaking and extracting tobacco stems and tobacco powder, grinding, pulping, sheet making, squeezing and drying, wherein in the sheet making step, the calcium carbonate and guar gum which respectively occupies 10-70% and 0.05-0.5% of the mass percent of the tobacco raw pulp are added into the tobacco raw pulp. Researches show that after the calcium carbonate and the guar gum are added according to an appropriate proportion, the tensile index, tear index and air permeability of the produced reconstituted tobacco paper-base are obviously improved, the whole water-absorption performance of the reconstituted tobacco paper-base is also improved, the tar yield, CO content and total particle matter content of the sheet paper-base are obviously decreased, so that the tar and harm reduction function of the reconstituted tobacco is better played, the combination property of the tobacco sheet is effectively improved, and the operation performance and effectiveness of a reconstituted tobacco production line are improved.

The invention relates to a tobacco hitting and redrying homogenizing processing technology. The tobacco hitting and redrying homogenizing processing technology includes the following steps that raw tobaccos are laid according to a single variety, a single grade and a single product or different varieties, different grades and different production places; the laid tobaccos are arranged in boxes and stored respectively; according to the requirements of a production formula list, the corresponding tobaccos are selected from the stored tobaccos and orderly delivered according to the grades, the varieties and the production places, box overturning and feeding are performed according to the material dispensing ratio of the production formula list, and the tobaccos of all grades are pre-mixed after box overturning and feeding are performed; the tobaccos which are pre-mixed sequentially receive the processing of one-time tobacco moistening, sand sieving, winnowing, impurity removing, manual selecting and secondary tobacco moistening. The tobaccos receive the processing of tobacco hitting and wind dividing; the tobaccos are mixed after receiving the processing of tobacco hitting and wind dividing, and after the on-line chemical component detection shows that the tobaccos are qualified, the redrying processing is performed. The tobaccos which are redried are packaged after the on-line chemical component detection shows that the tobaccos are qualified. The tobacco hitting and redrying homogenizing processing technology solves the problem that formula homogenization is difficult to control in the producing and processing processes of the tobaccos of original tobacco hitting and redrying enterprises.

The invention discloses a new technology for curing the red flower gold dollar tobacco leaf to be yellow and fragrant, belonging to the technical field of tobacco preparation. The technology comprises the following steps of: a first stage: (1) a leaf changing period: drying a ball at 37-38 DEG C and wetting the ball at 35-36 DEG C till that the leaf is turned to be yellow at 7-8 level and the leaf is softened and withered, and (2) a withering period: drying the ball at 42 DEG C and wetting the ball at 37-38 DEG C till that the leaf is turned to be yellow at 9-10 level and a main vein is soften; a second stage: (1) a vein changing period: drying the ball at 45-46 DEG C and wetting the ball at 37-38 DEG C till that the yellow leaf and the yellow vein are changed to be the status of a small winding drum, and (2) a period for curing the dried leaf to be fragrant: drying the ball at 52 DEG C and wetting the ball at 39-40 DEG C for 12+/-0.5h till that the dried leaf is changed to be a winding drum; and a third stage: drying the ball at 65 DEG C and wetting the ball at 40-42 DEG C till that the vein of the full baked tobacco leaf is dried. The new curing technology can obviously reduce the green smoke rate and the curing phenomena of the green vein, the green leaf, the floating green and the like, and can improve the fragrant quality and the appearance quality of the tobacco leaf.

The invention discloses electronic cigarette tobacco juice prepared from faint scent tobacco leaves. The electronic cigarette tobacco juice is prepared by uniformly mixing 10 to 30 percent of faint scent flue-cured tobacco leave extract, 5 to 10 percent of tobacco flavor, 1 to 5 percent of tobacco perfume, 5 to 10 percent of deionized water, 10 to 20 percent of glycerol and the balance of propylene glycol. The faint scent flue-cured tobacco leave extract is one of a Yunnan faint scent flue-cured tobacco leave extract and a Fujian faint scent flue-cured tobacco leave extract, or a mixture of the Yunnan faint scent flue-cured tobacco leave extract and the Fujian faint scent flue-cured tobacco leave extract. The electronic cigarette tobacco juice takes a faint scent tobacco leave extract as a main component, so that the aroma and mouthfeel of an electronic cigarette are close to those of the traditional faint scent cigarette. The electronic cigarette tobacco juice is used for atomizing the electronic cigarette and does not generate tar and CO, the harm to consumers is greatly reduced and the product cannot generate the harm of passive smoking.

The invention relates to a method for curing tobacco leaves in a small intelligent concentrated tobacco curing barn; an air inlet is arranged in the curing barn; the top part is provided with a clearstory and a return intake; a hearth, a main fire tube, branch fire tubes, a chimney, a hot air course and an air outlet are arranged on a horizon; the main fire tube is connected with the hearth; a plurality of branch fire tubes are arranged in a circuitous way; the distribution of the hot air course below the fire tube is consistent to the fire tube; a clapboard is arranged above a hot air chamber; a fan is arranged above the opening of a branch hot air course and is connected with the return intake and the air inlet to form a hot air circulating system; intelligent control is formed by a temperature controller, a humidity controller, a temperature sensor, a humidity sensor, the fan, a blower and an air door in a connection way; the technique of the curing barn is divided into a yellowingstage,a leaf drying stage and a stem drying stage; the temperature of the stem drying stage is controlled to be 32 to 36 DEG C for 10 to 15 hours; then the temperature is raised to 39 to 42 DEG C for 10 hours; the temperature of the leaf drying stage is 45 to 48 DEG C for 12 hours; then the temperature is raised to 50 to 52 DEG C for 12 hours; then the temperature is raised to 54 to 55 DEGC for 12hours; the temperature of the stem drying stage is raised to 60 to 68 DEG C; the stems of tobacco is cured to be completely dry; then the fire is stopped; then dampening and removing from a kang are carried out.

The invention discloses a method for extracting Chinese-style flue-cured tobacco fragrance cigarette juice for an electronic cigarette. The method comprises the following steps: 1, blending flue-cured tobacco type tobacco leaves, tobacco shreds or tobacco powder; 2, applying cigarette feed liquid or materials with high sugar content on the tobacco leaves, tobacco shreds or tobacco powder; 3, performing destructive distillation on the tobacco leaves, tobacco shreds or tobacco powder by different temperature sections; 4, collecting fractions. The fractions collected by the method can directly serve as electronic cigarette juice, and cigarette essence perfume having characteristic flavor, or edible essence perfume also can be added to enrich the styles of the electronic cigarette tobacco juice; the electronic cigarette juice collected by the method has the style characteristic and flavor similar to those of a Chinese-style cigarette, the satisfaction is good, the fragrance is harmonious, and the taste is pure and mild.

The invention discloses a burley tobacco processing and treating technic in a blended type cigarette. The technic performs a burley tobacco leaf blade making workshop section, a burley tobacco making leaf shred workshop section, and a leaf shred mixing workshop section. The burley tobacco processing and treating technic is used for processing and treating a burley tobacco which is used as an individual formula module in the blended type cigarette, and is impenetrated in the whole process from leaf blade making to leaf shred marking; aiming at the treatment of the material of the burley tobacco, for example, the feed liquid of the burley tobacco is applied by steps and proportion; the baking and the drying of the burley tobacco are performed after cutting shred; the existing burley tobacco baking mode is substituted, a burley tobacco leaf shred baking and drying process mode is adopted, the water ratio and the temperature of the exported leaf shred is fed back and controlled; the processing route of the existing burley tobacco processing technic is changed, a processing technic for shred mixing is adopted. The burley tobacco processing and treating technic can adopt different processing parameters and routes according to the needs of products and different qualities and characters of different burley tobacco raw materials, thus the aesthetic quality of the blended type cigarette is improved, the process flow is simpler, and the processing method is more flexible.

The invention discloses a preparation method for regenerating tobacco leaves by using an aromatic tobacco papermaking method, belonging to the technical field of tobacco leaf regeneration by using a papermaking method in the tobacco industry. The preparation method is characterized by comprising the following steps of: extracting aromatic tobacco with an aqueous solution containing an organic solvent, separating solid and liquid, a concentrating extract into extractum, adding aromatic tobacco seed powder and a mixed solvent to the extractum to prepare coating fluid; mixing aromatic tobacco slag with tobacco cabo slag extracted through water to pulp into a film base through manufacturing and forming paper with pulp; coating the film base with the prepared coating liquid, drying, cutting and crushing into finished regenerating tobacco leaf products of aromatic tobacco type by using the aromatic tobacco papermaking method. The invention provides the tobacco regenerating method by using the papermaking method which can fully utilize the whole leaves, scraps, broken leaves and aromatic tobacco seed resources and have the characteristic of producing typical aromatic tobacco.

The present invention discloses a scattered leaf stacked tobacco-roasting house and its leaf roasting method, which includes two juxtaposed rooms: a heating room and a tobacco filling room; the said heating system is disposed in the heating room, and a tobacco stacking gate is disposed in the tobacco filling room; the said hot air circulation system which makes the hot air circulate between the heating room and the tobacco filling room is diposed in the heating room and the tobacco filling room and connects the heating room and the tobacco filling room; the layers and the height of the scattered leaf stacked tobacco-roasting house are both lower than that of the conventional roasting house, which avoids the high-altitude operation in the filling house, and the operation being safe and convenient; the scattered leaf stacked tobacco-roasting house adopts that the heating room and the tobacco filling room are mutually isolated with each other, therefore, no fire will occur and it is more secure; the roasting house has a lower-cost, a low vertical temperature, and a uniform surface temperature; and it save labor costs according to the conventional roasting house, thereby improving the quality of tobacco, and increasing the output.

The invention provides a method for improving the quality of expanded cut rolled stem of tobacco by microbial enzyme. The procedures are as follows:1) Preparation of bio-enzyme: (1) Aspergillus niger is activated and cultured by potato cane sugar culture medium and is then transferred into sterilized seed culture medium, and shake cultivation is carried out at the temperature of 28 DEG C for 24 hours with 250r/min<-1>; seed liquid with 10% of inoculation amount is transferred into a sterilized 500ml shake flask (containing 100ml culture liquid for enzyme), and the seed liquid carries out incubation for culturing at the temperature of 25 DEG C for 96 hours and then zymotic liquid is obtained. (2) Extraction of lignin degradation complex enzyme: After being filtered by filter paper, the zymotic liquid is centrifugally separated at the low speed of 1500rpm. The supernatant carries out fractional salting out by (NH4)2SO4 till the saturation is 0.7 to obtain crude enzyme liquid, after the crude enzyme liquid carries out ultrafiltration dialysis, the lignin degradation complex enzyme is obtained. Activities of enzyme components: 350U/L of Lip, 11U/L of MnP and 5.6U/L of Lac; 2) Improvement of the quality of expanded cut rolled stem of tobacco: The expanded cut rolled stem for cigarette is weighed and sprayed evenly by lignin degradation complex enzyme liquid containing 0.2-0.4% of expanded cut rolled stem after being diluted by distilled water at the temperature of 27 DEG C-29 DEG C. The expanded cut rolled stem of tobacco is placed in a sealed container for enzymolysis for 95-97 hours and dried naturally till the moisture content is 12.5%-15%. The result by subjective analysis suggests that the complex enzyme preparation can effectively decrease the lignin content of the expanded cut rolled stem, promote the transformation of aroma matter and improve aroma quality and taste.

The invention relates to a tobacco leaf curing process capable of improving the curing quality of a flue-cured tobacco variety KRK26, belonging to the technical field of flue-cured tobacco modulation processes. The curing process comprises the following steps of: regulating the humidity at low temperature to yellow tobacco leaves; stabilizing the temperature and removing moisture for withering; ventilating and dewatering for drying the leaves; and controlling the temperature and the humidity to dry leaf ribs. In the invention, the method of keeping the tobacco leaves at lower temperature to reduce water evaporation in the tobacco leaves and guarantee the water content of the tobacco leaves is adopted to solve the problems of less water and difficult yellowing of the tobacco leaves of the KRK26 variety in the yellowing period; the dry-bulb temperature is between 41 DEG C and 44 DEG C, and the tobacco leaves can be sufficiently dewatered and shrunk to reduce the cell membrane turgor; the tobacco leaf cell membranes cannot be broken between 45 DEG C and 48 DEG C so as to smoothly fix the color; and in the whole process of tobacco leaf curing, the wet bulb temperature is controlled tobe between 34 DEG C and 38 DEG C so as to actively promote the decomposition and the conversion of macromolecular substances and the synthesis of flavoring substances. The invention has the advantages of simple and convenient operation, safety and insurance, can ensure that the tobacco leaves of the variety KRK26 can be smoothly yellowed, timely subjected to color fixing and subjected to rib drying in good time and improves the tobacco leaf curing quality.

The invention provides a production method of a production method of tobacco extractum and use thereof. Tobacco leaves are sent to an extraction sequence for extraction so as to obtain tobacco extractum after field tobacco leaves are discolored through concoction and before the field tobacco leaves are dried; the production method comprises the steps of: (1) harvesting the field tobacco leaves; (2) concocting the tobacco leaves to obtain concocted and discolored wet tobacco leaves which are not dried; (3) extracting the tobacco leaves to obtain the tobacco extractum. The extractum product can be directly used for aroma enhancement of tobacco leaf formula products, tobacco sheets, tobacco stem filament products or cigarette products, and also can be used for further preparation of tobacco reaction spice for the aroma enhancement of the tobacco products. According to the invention, field tobacco waste including bottom leaves, top leaves, tobacco forks and tobacco tops can be utilized fully, so that a raw material source for the production of the tobacco extractum is opened up, a new path for the utilization of the tobacco field waste resource is opened up, processing energy consumption, equipment investment and labor consumption for dry preparation of the tobacco leaves are reduced, processing period is shortened, and good environment benefits and good economic benefits can be achieved.

The invention discloses a tobacco leaf remaking process using tobacco peduncle and tobacco fragment as material through paper making method which comprises, extraction and separation of cigarette stems, mince, obtaining dissoluble tobacco extract and non-dissoluble articles, pulping the obtained non-dissoluble articles, making substrates, subjecting the dissoluble tobacco extract to refining, concentration, and modulation, applying onto substrates or immersing into substrates, and producing tobacco leaves through paper making method.

The detection method of the volatile and semi-volatile organic acid in tobacco leaf or thread is provided in invention. The character is in that: it uses the accelerating solvent extraction device (ASE200, Dionex, USA). In the condition of setting pressure, temperature and time, the volatile and semi-volatile organic acid of C1-C18, which is derived from the N,O-BSTFA and detected by the GC-MS. The extracting solvent is little and the time is short. The method is simple and has good repeatability, high detection sensitivity; also it can detect the volatile and semi-volatile organic acid at the same time. So it is proper for detecting big batch of samples.

The invention discloses a tobacco active biological organic-inorganic special fertilizer and a preparation method thereof. The tobacco active biological organic-inorganic special fertilizer is prepared by the following steps of: selecting functional microbial strain and adding the following materials in percentage by weight: 50-70 percent of rapeseed meal, 20-40 percent of sesame seed meal and 10-20 percent of bean meal; mixing, then performing solid fermentation and performing enzymolysis on crude protein in cake meal to form a biological fermentation cake fertilizer with bioactive free amino acid and active small peptide; and then uniformly mixing with an activator and an inorganic fertilizer and chelating to prepare the tobacco active biological organic-inorganic special fertilizer. The tobacco active biological organic-inorganic special fertilizer is characterized by comprising the following raw materials in percentage by weight: 8-12 percent of activator, 20-30 percent of biological fermentation cake fertilizer and 55-75 percent of inorganic fertilizer. According to the invention, a method of combining an organic fertilizer with an inorganic fertilizer and combining nitrate nitrogen with ammonium nitrogen is adopted, the biological fermentation cake fertilizer with the rapeseed meal, sesame seed meal and bean meal as carriers is added, and the raw materials are mixed with the activator and the like to prepare a high-efficiency active fertilizer. The fertilizer has the characteristics of high nutrition, high activity and high efficiency; the tobacco plant root environment can be improved, the root system activity is enhanced, the leaf growth is promoted, the requirements of tobacco plant development on mineral nutrition are fully met, the yield of the tobacco plant and the quality of the tobacco leaf can be obviously improved, the environment pollution is reduced, and the soil is improved.

The invention discloses a tobacco leaf grading method based on reflection, perspective and microscopic images. The method provided by the invention comprises the following steps: (1) acquiring a high-definition color reflection image, a high-definition perspective image and a high-definition microscopic image of tobacco leaf at real time and transmitting the collected images to an industrial control computer; (2) preprocessing the images to quickly position the edge of tobacco leaf and segmenting tobacco leaf out of a background area to record as a tobacco image; (3) extracting features of the image, wherein the features include shape feature, color feature and texture feature; and (4) analyzing the above features of tobacco leaf by an Adaboost sorting algorithm, and determining the grade of tobacco leaf through part, color and grade classification of tobacco leaf. Through a device for full-automatic machine grading, human factor interference can be avoided, and labor cost is greatly reduced. Thus, huge hidden costs of training, management and the like caused by manual grading are completely avoided.

The invention discloses a tobacco leaf grading method based on a hyperspectral image and a deep learning algorithm. The tobacco leaf grading method comprises steps of 1, obtaining hyperspectral image data of a tobacco leaf sample to be measured, 2, performing high level characteristic extraction on the image data to perform dimension reduction, and 3, performing classification on obtained image information and spectral information. A hardware platform of a hyperspectral imaging system comprises a light source, a light splitting module, an area array CCD detector and a computer provided with an image collection card; spectral information can be obtained while the imaging system is utilized to perform image information collection, separate collection is not needed and collection time is shortened; in the step 2, a convolutional neural network is utilized to perform pre-processing and then a deep belief network is utilized to perform characteristic extraction; in the step 3, a Sofmax layer is added on the top layer and obtained characteristics are inputted into a softmax regression classifier to realize classification. The tobacco leaf grading method based on the hyperspectral image and deep learning can maximally achieve lossless grading, accurately divides a tobacco leaf grade, and ensures benefits of a purchasing party.

The invention relates to a method for curing cigar wrapper tobaccos, which is characterized by stringing the fresh tobaccos and then hanging the strings on a rod, placing the tobaccos in an air-drying room to be air-dried, controlling the relative humidity of the air-drying room in different air-drying periods, removing the strings from the rod when the moisture content of the tobaccos is 16-17% after air-drying for 25-30d and storing the tobaccos for later use; stacking the tobaccos after conditioning the air-dried tobaccos, turning the stacks according to the principle of outside-inside, inside-outside, up-down and down-up when the temperature in the stacks reaches 35-37 DEG C, and after turning the stacks 4-5 times, ending fermentation when the moisture content of the tobaccos reaches 18-20% and the temperature in the stacks is 5 DEG C higher than the room temperature and no longer rises, thus obtaining the cigar wrapper tobaccos. By the method, the fresh tobaccos are effectively cured to the high-quality tobaccos with smooth textures, uniform color, procumbent veins, close tissues, good elasticity and uniform and complete combustion through humidity and temperature adjustment,and the method conforms to the requirement of the high-grade cigar wrapper tobaccos and provides an effective way for development of the cigar industry in China.

The invention discloses a method for harvesting and baking in bulk curing barns in rainy tobacco regions. According to the method, corresponding tobacco leaf harvesting standards, loading densities and tobacco leaf baking processes are respectively provided for lower leaves and middle-upper leaves of cured tobacco in the rainy tobacco regions. Secondary baking stop technical regulations are strictly executed for tobacco leaf harvest, and on the basis of reasonable loading and baking, the process of baking tobacco leaves on corresponding parts is divided into five steps, namely two steps in a yellowing stage, two steps in a fixation stage and one step in a stem-drying stage. Dry ball temperature and wet ball temperature in a temperature stabilizing stage in each step are regulated, the tobacco leaf yellowing and dehydrating process is reasonably controlled, the problems that intensively baked tobacco leaves are light in color, insufficient in aroma and the like are solved, and the quality of baked tobacco leaves is improved.

The invention provides an analysis method and system for a gas phase combustion product of a cigarette. The analysis method comprises the following steps of: putting tobacco leaf powder in an oxygen-containing gas atmosphere for cracking at the same temperature; completely cooling a cracking product, filtering particle phase constituents through a Cambridge filter; adsorbing the gas phase ingredients by adopting an adsorption sampling pipe; and performing thermal desorption on the adsorption sampling pipe, and entering a gas-mass combined spectrometer for analyzing. Correspondingly to the analysis method, a commercial SGE (Severable Government Equipment) microwave cracker is improved, so that capturing of the gas phase constituents of the cracking product is realized for the first time, and the gas phase constituents are subjected to qualitative and quantitative analysis. The analysis method and the analysis system can be used for discovering the formation mechanism of harmful ingredients in smoke, and a theoretical foundation is laid for the researches of depression of the tar and reduction in harmfulness of cigarettes.

The invention discloses a tobacco stalk processing method, relating to a tobacco leaf processing method, in particular to a tobacco stalk processing method on a tobacco processing line. The invention comprises the steps of: vacuum moisture regaining, stalk washing in a water-tank tobacco stalk conditioning plant, stalk moistening in a channel tobacco stalk conditioning plant, stalk pressing, shredding, moisture regaining in a jetting stalk stem conditioning plant and stalk stem drying in a channel stalk stem drying machine. After being subjected to the tobacco stalk vacuum moisture regaining procedure, tobacco stalk absorbs atomizing water vapour, so that the tobacco stalk has certain temperature and moisture, which can greatly improve the performance index of the original procedure of washing stalks with water; after adding the tobacco stalk vacuum moisture regaining procedure, the moisture of the tobacco stalk can be ensured before the stalk stem is cut; impurities can be thoroughly discharged after the tobacco stalk is washed, the stalk stem cutting technology can be conveniently and safely finished, and the cut stalk stem is cleaner.