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117results about How to "Lower nicotine levels" patented technology

Flue-cured tobacco cultivation method fitting in with light environment of Yunnan tobacco-growing area

The invention discloses a flue-cured tobacco cultivation method fitting in with the light environment of the Yunnan tobacco-growing area and belongs to the technical field of tobacco plant cultivation. The flue-cured tobacco cultivation method comprises the following steps of float breeding, soil preparation and ridging, transplanting under film, management in film covering period and field management. The seeding time is from mid December to mid February, the float disc floating seedling method is adopted, and seeding hardening lasts for 8-14 days before transplanting; ridging is conducted after the soil is pulverized and moisture is stored, and inorganic fertilizer and cake fertilizer which is thoroughly decomposed are mixed to be applied to the field; the transplanting period is from mid March to mid April, the density of tobacco plants is 1000-12000 plant / mu, each tobacco plant is irrigated with 1.5-2.5kg root water after transplanting, and colored mulching film is covered; top dressing is conducted twice after transplanting, and seeding leading is conducted 15-25 days after the top of each tobacco seeding ejects the film; the mulching film is removed when the tobacco plants enter the mid of the vigorous growth period, earthing up, weeding and watering are conducted in time, and topping, leaf reserving and bifurcation removing are conducted. The flue-cured tobacco cultivation method can fitting in with the light environment of the Yunnan tobacco-growing area, the local light source can be utilized fully and reasonably, the quality of tobacco leaves can be improved, and the aroma style of the fen-flavor tobacco leaves is enhanced.
Owner:YUNNAN ACAD OF TOBACCO AGRI SCI

Preparation method and application of discarded tobacco leaf fermentation extract

The invention provides a preparation method and an application of a discarded tobacco leaf fermentation extract. Discarded tobacco leaves are fermented with beta-glucosidase, a tobacco biotransformation liquid containing various increased small-molecular aroma substances is obtained through enzymatic curing, then amino acid and reducing sugar in certain proportion are added for a high-temperature Maillard reaction under an alkaline condition, a natural tobacco Maillard reaction liquid is obtained and subjected to pumping filtration, a filtrate and filter residues are obtained, the filtrate is concentrated and mixed with propylene glycol and the like, further separation and purification are performed through molecular distillation, and light components are collected and taken as the discarded tobacco leaf fermentation extract. Reconstituted tobacco substrates with low irritation, low miscellaneous gas, low nicotine content and low harm are prepared from the filter residues with a paper-making process, the quality of the thin discarded tobacco leaf substrates is improved, the use effect of the discarded tobacco leaves on cigarette products is improved, the adding quantity of the extract is increased, the extract can be applied to an atomization filler material for novel carbon heating tobacco, and the quality of the atomization filler material is improved.
Owner:HUBEI CHINA TOBACCO IND

Method for adjusting and controlling nicotine content in tobacco extract

The invention relates to a method for adjusting and controlling the content of nicotine in a tobacco extract. The invention aims at solving the problems of complicated technique, relatively high cost, easily damaged original aromatic components in tobacco and chemical agent residue in the extract in adjusting and controlling the content of the nicotine in the tobacco extract during the production of reconstituted tobacco leaves in the existing paper-process. The technical keys are as follows: the method is characterized in that a tobacco raw material extract used in the production of the reconstituted tobacco leaves in the paper-process is selected, a solvent is used for diluting the extract to a set concentration, the diluent obtained is put into an ultrafiltration membrane circulating device for circulation and filtration to obtain a trapped liquid which is low in nicotine content and trapped by a ultrafiltration membrane and a dialyzate which is high in nicotine content and permeates the ultrafiltration membrane, wherein, the trapped liquid is used as a material which is coated on and refilled into a substrate during the production of the reconstituted tobacco leaves in the paper-process and the dialyzate is used as a material with special usage.
Owner:GUANGDONG GOLDEN LEAF TECH DEV

Special compound organic fertilizer for tobacco and preparation method thereof

The invention discloses a special compound organic fertilizer for tobacco. The special compound organic fertilizer mainly comprises the following components in parts by weight: 25-40 parts of maize straws, 10-25 parts of excrements of livestock, 10-15 parts of oil cake, 0.1-0.6 part of urea and 0.1 part of a decomposition agent. The organic fertilizer is mainly prepared by the following steps: pretreating raw materials, performing primary fermentation, performing secondary fermentation, drying and packaging. The fertilizer is applied to the ditch before tobacco plant transplanting, so that growth of the tobacco plants can be obviously promoted, particularly the plant height and leaf length are increased, and the tobacco planting soil is improved; and therefore, the nicotine content of the tobacco leaf is reduced, the quality and appearance quality of the tobacco leaf are improved, the land resources can be effectively protected due to reasonable application of the fertilizer, and a necessary guarantee is provided for sustainable development of the tobacco leaf. The organic fertilizer is particularly suitable for cultivation of high-quality tobacco leaf. In addition, the organic fertilizer disclosed by the invention is wide in source and low in price, the pollution of straw combustion and livestock manure on the environment is reduced, the preparation method is simple and feasible, and the fertilizer is wide in functions and good in effect.
Owner:FUJIAN AGRI & FORESTRY UNIV

Method for preparing tobacco leaves containing no nicotinamide or little nicotinamide

The invention provides a method for preparing tobacco leaves containing no nicotinamide or little nicotinamide, comprising the following steps of: soaking the dried tobacco leaves in a fermentation liquid, preparing the fermentation liquid by the following weight portion ratios: 50-100 portions of jujube, 50-100 portions of apple, 15-30 portions of angelica and 150-300 portions of red wine; leading the fermentation to last 30-60 days at the temperature of 30-40 DEG C for standby; subsequently arranging the tobacco leaves in the fermentation liquid at normal temperature; soaking and fermenting the tobacco leaves for 7-10 days; and separating the leaves from the liquid and subsequently preparing the products such as cigarettes, cigars, cut tobaccos and the like by normal cigarette process. The method has the advantages that the raw material is easy to be obtained and the cost is low, the obtained product effectively reduces or eliminates the harm of the nicotinamide to the smokers or passive smokers, optimizes the social sanitary environment, and provides help for the healthy development of the tobacco industries. Detected by provincial food authority department according to national standard, the content of the nicotinamide in the tobacco leaves is reduced to less than 0.035%.
Owner:谢孔玉

Method for reducing content of nicotine in flue-cured tobacco leaves

InactiveCN105493916AGood yieldDoes not reduce nicotine levelsBiocidePlant growth regulatorsVitamin CGlycerol
The invention provides a method for reducing the content of nicotine in flue-cured tobacco leaves. Within two hours after flue-cured tobaccos are topped, the topped sections of the flue-cured tobaccos are smeared with 1.0-2.0 ml of a nicotine signal regulating substance solution, and covered with round paper patches with the diameter being 2.5 cm; according to the using method, 1, the nicotine signal regulating substance solution is used instantly after being prepared, wherein 1000 ml of purified water is mixed with 8.0-10.0 g of glucose oxidase, 2.0-3.0 g of vitamin C, 3.0-5.0 g of vitamin E, 300-500 mg of vitamin E, 5 g of sorbitol, 50 g of glycerol and 10 g of magnesium sulfate heptahydrate; according to the different soil types, flue-cured tobacco varieties and the nitrogen fertilizer application level, the different smearing amounts of the nicotine signal regulating substance solution are determined. According to the method for reducing the content of the nicotine in the flue-cured tobacco leaves, the synthetic amount of the nicotine in flue-cured tobacco roots can be reduced, the content of the nicotine in the tobacco leaves of all parts is reduced, especially, the content of nicotine in the tobacco leaves of the upper portion is reduced, coordination of chemical ingredients of the tobacco leaves is improved, industrial usability of the tobacco leaves is improved, and the method is particularly suitable for being applied and popularized in high-grade cigarette brand base units.
Owner:HUNAN AGRICULTURAL UNIV
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