33results about How to "Improve the quality of flue-cured tobacco" patented technology

A water-holding controlled release fertilizer for tobacco exclusively and a preparation method thereof are provided. The water-holding controlled release fertilizer includes the following materials by the weight percentage: 2 percent to 4 percent of sand grains, 10 percent to 14 percent of lemery, 10 percent to 14 percent of potassium nitrate, 10 percent to 14 percent of diammonium phosphate, 22 percent to 26 percent of cake fertilizer, 0 percent to 4 percent of zinc sulfate, 0 percent to 0.4 percent of sodium molybdate, 20 percent to 24 percent of adhesive A, 10 percent to 14 percent of adhesive B and 1 percent to 3 percent of water retention agent. The invention adopts the method that the water retention agent is at the outmost layer so that the water retention layer absorbs water at first. The water retention layer does not contact chemical fertilizer directly. The influence of the chemical fertilizer on the absorbing effect of the water retention agent is reduced. At the same time, according to the balanced fertilization principle of cured tobacco, the kind and the quantity of the deficient element of tobacco soil is supplemented. Hereby, the compound fertilizer especially forcured tobacco of the invention is designed and manufactured. By fixing the grain diameter of a core, nutrition dissolution property is changed by fertilizer enwrapping method in order to control the release of potash fertilizer effectively. Moreover, the water retention agent absorbs water, which consequently realizes the dynamic equilibrium of fertilizer release and plant absorption.

The invention provides a heat pipe type automatic flue-cured tobacco machine, which includes a thermal insulation box and a thermal insulation partition. The interior of the thermal insulation box is divided into upper and lower sections by a partition, the upper section is a heating section, and the lower section is a dehumidification section. The heat pipe type regenerator is divided into upper and lower ends by the insulation partition. The upper end is the heat release end, which is in the heating section of the insulation box, and the lower end is the heat absorption end, which is located in the dehumidification section of the insulation box. The heating section It consists of heat pipe regenerators, compressors and condensers connected in sequence. The dehumidification section is composed of air inlet flanges, fans, heat pipe regenerators and dehumidification evaporators connected in sequence. The invention uses electric energy, There is no coal-burning pollution; it makes full use of the condensation heat of hot and humid air and the heat of outside air during the dehumidification process of the barn, and adopts heat pipe recovery technology to further improve the heat recovery efficiency of hot and humid air, reduce the electric power of the dehumidification system, and save electric energy. And the dehumidification process of the flue-cured tobacco room is canceled, which further improves the quality of the flue-cured tobacco.

The invention discloses a longosporin yeast and its application, belonging to the technical field of microbial application. The bacterial strain of the present invention is classified as Lodderomyces elongisporus OF-08; it was deposited in the General Microorganism Center of China Committee for the Collection of Microorganisms on October 8, 2012, and the preservation number is CGMCC No.6645. The physiological and biochemical characteristics of the OF-08 strain and the 26S rDNA gene sequence (the sequence number of this sequence in the GeneBank database is JQ916053) are the main characteristic basis for identifying the strain. Spraying the strain preparation can increase the aroma quality and reducing sugar content of tobacco leaves, and decrease the content of protein, cellulose, total nitrogen and nicotine. Therefore, the ratios of sugar-to-nitrogen ratio, sugar-to-alkaline ratio and nitrogen-to-alkaline ratio tend to increase, which makes the chemical quality more harmonious and improves the smoking quality of tobacco leaves.

The invention discloses a tobacco flue-curing room which adopts multiple heat sources. The tobacco flue-curing room comprises a flue-curing room, wherein a solar power generation system is arranged at the top of the flue-curing room; a heating room is arranged at one end of the flue-curing room; an upper ventilation opening and a lower ventilation opening are formed between the flue-curing room and the heating room; a shutter wet discharge hole is formed in the lower part of a side part of the flue-curing room; the flue-curing room is internally provided with a plurality of rod racks for hanging tobacco leaves; the heating room is internally provided a methanol combustion machine as well as an electric heater and a fan connected with a power grid and the solar power generation system; the heating room is provided with an air amount control hole. As the multiple heat sources are adopted and used cooperatively, the advantages are fully taken and the defects are made up, the advantages of the heat sources are sufficiently brought into play, and comprehensive effects of energy conservation, environment protection, cost reduction, product quality improvement and the like can be achieved to the maximum extent.

The invention provides a pretreatment method of tobacco leaves before curing. In the pretreatment method, a special main vein removing tool and a special tobacco leaf charging tool are used. The pretreatment method comprises the following operating steps: A, removing main veins of the tobacco leaves by using the main vein removing tool to obtain left half leaves and right half leaves; B, segmenting the left half leaves and the right half leaves into leaf bases, leaf middles and leaf tips by using a carving knife respectively; C, charging the leaf bases, the leaf middles and the leaf tips disorderly by using the tobacco leaf charging tool respectively; D, fixing the leaf bases, the leaf middles and the leaf tips into corresponding boxes by using long needles on the tobacco leaf charging tool respectively. The pretreatment method is simple and convenient to use; by the pretreatment method, the main veins can be quickly removed, segmentation of the leaf bases, the leaf middles and the leaf tips is facilitated, and cell damage during segmentation is avoided; in addition, a way of charging the tobacco leaves into the boxes by class is adopted, and in the curing process, the problem of collapse caused by water loss-type withering of the leaves is solved; through pretreatment before curing, the quality of flue-cured tobacco is integrally improved.