CN108185496B - Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application - Google Patents

Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application Download PDF

Info

Publication number
CN108185496B
CN108185496B CN201810048385.7A CN201810048385A CN108185496B CN 108185496 B CN108185496 B CN 108185496B CN 201810048385 A CN201810048385 A CN 201810048385A CN 108185496 B CN108185496 B CN 108185496B
Authority
CN
China
Prior art keywords
baking
tobacco
temperature
tobacco leaves
hours
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810048385.7A
Other languages
Chinese (zh)
Other versions
CN108185496A (en
Inventor
王亚平
包可翔
吴清辉
王超超
卓思楚
范坚强
陈少滨
龙腾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Tobacco Fujian Industrial Co Ltd
Original Assignee
China Tobacco Fujian Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Tobacco Fujian Industrial Co Ltd filed Critical China Tobacco Fujian Industrial Co Ltd
Priority to CN201810048385.7A priority Critical patent/CN108185496B/en
Publication of CN108185496A publication Critical patent/CN108185496A/en
Application granted granted Critical
Publication of CN108185496B publication Critical patent/CN108185496B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00Preparing tobacco in the factory
    • A24B3/10Roasting or cooling tobacco

Abstract

The invention belongs to the field of tobacco modulation, and particularly relates to a primary baking method of Honghuadajinyuan tobacco leaves, which comprises the steps of carrying out six-section baking on the Honghuadajinyuan fresh tobacco leaves, wherein the six-section baking comprises a yellowing early stage, a yellowing middle stage, a yellowing later stage, a color fixing early stage, a color fixing later stage and a tendon drying stage; wherein, in the early stage of yellowing, the baking temperature is 32-33.5 ℃, and the difference between the baking temperature and the wet bulb temperature is 0.5-1 ℃. The invention also relates to the tobacco leaves prepared by the method and the application thereof in tobacco products. The primary curing method can improve the grade quality of the Honghuadajinyuan flue-cured tobacco, reduce the proportion of the auxiliary group of tobacco, improve the average price of the Honghuadajinyuan flue-cured tobacco and improve the appearance quality, the chemical component composition and the sensory quality of the flue-cured tobacco.

Description

Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application
Technical Field
The invention belongs to the field of tobacco modulation, and particularly relates to a primary baking method of safflower Honghuadajinyuan tobacco leaves, tobacco leaves prepared by the method and application of the prepared tobacco leaves in tobacco products.
Background
At present, the traditional three-section type baking process is still commonly adopted for baking tobacco leaves, and the general operation steps are as follows:
1) and (3) yellowing stage: after ignition, the baking temperature is increased to 34-36 ℃ at the speed of 1 ℃/hour, the wet bulb temperature is kept 1-1.5 ℃ lower than the dry bulb temperature (baking temperature) until more than 85 percent of bottom shed tobacco leaves 8 become yellow in area; raising the baking temperature to 40-42 ℃, and keeping the wet bulb temperature at 36-37 ℃ to ensure that the tobacco leaves turn yellow and soft;
2) a color fixing stage: the baking temperature is increased to 45-47 ℃ at the rate of increasing 1 ℃ every 2-3 hours, the wet bulb temperature is slowly increased and kept at 37-38 ℃, when the tobacco leaves reach yellow leaf yellow ribs and are hooked and curled to small winding drums, the temperature increase rate of the baking temperature can be increased to 1 ℃ every hour until 54-55 ℃, the wet bulb temperature is kept at 37-38 ℃, the baking is continued for 22-30 hours until the back of the leaves turns to be gray and yellow.
3) And (3) a tendon drying stage: the baking temperature is increased to 67-69 ℃ at the speed of 1 ℃/hour, the wet bulb temperature is kept at 41-42 ℃, the baking is carried out for more than 20 hours until the moisture content of the tobacco leaves in the whole furnace is about 12 percent (w/w), the branch vein moisture content of the tobacco leaves in the whole furnace is close to 12 percent (w/w), the main vein is close to full dryness, and the fire is stopped.
Honghuadajinyuan belongs to one kind of flue-cured tobacco. The Honghua Dajinyuan has the characteristics of fast water loss and slow yellowing in the yellowing stage, slow water loss in the color fixing stage, difficult color fixing and baking, easy color deterioration in time, difficult baking and difficult baking resistance. The inventors of the present invention found that: if the traditional three-stage baking process is adopted to bake the safflower Honghuadajinyuan tobacco leaves for the first time, more auxiliary groups of tobacco leaves such as green black tobacco, mottled tobacco, green yellow tobacco and the like are often baked, and the internal and external quality and the production benefit of the tobacco leaves are seriously influenced; moreover, the irritation of sensory evaluation of the tobacco leaves is more prominent than the green miscellaneous gas, the elegant fragrance is not easy to be penetrated, and the unique sweet fragrance flavor of the Honghuadajinyuan tobacco leaves cannot be fully expressed. Affecting the industrial availability of Honghuadajinyuan tobacco leaves.
At present, a primary roasting method capable of improving the quality of Honghuadajinyuan tobacco leaves is needed.
Disclosure of Invention
The invention provides a primary flue-curing method of Hongda tobacco leaves, which improves the grade quality of Hongda tobacco leaves, reduces the proportion of accessory group tobacco, improves the integral average price of the tobacco leaves, and improves the appearance quality, chemical components and sensory quality of the tobacco leaves. On the basis, the invention also provides tobacco, a tobacco composition and a tobacco product.
The first aspect of the invention relates to a primary baking method of Honghuadajinyuan tobacco leaves, which comprises the steps of carrying out six-section baking on the fresh Honghuadajinyuan tobacco leaves, wherein the six-section baking comprises a yellowing early stage, a yellowing middle stage, a yellowing later stage, a fixing color early stage, a fixing color later stage and a drying rib stage;
wherein, in the early stage of yellowing, the baking temperature is 32-33.5 deg.C (such as 32.5 deg.C, 33 deg.C), and the difference between the baking temperature and the wet bulb temperature is 0.5-1 deg.C (such as 0.5 deg.C, 1 deg.C).
In certain embodiments of the first aspect of the present invention, the six-stage baking comprises, in order, a pre-yellowing stage, a mid-yellowing stage, a post-yellowing stage, a pre-fixing stage, a post-fixing stage, and a tendon-drying stage.
In certain embodiments of the first aspect of the present invention, the Honghuadajinyuan fresh tobacco leaf is at least one selected from the group consisting of upper tobacco leaf, middle tobacco leaf and lower tobacco leaf.
In certain embodiments of the first aspect of the present invention, the pre-yellowing stage is at a baking temperature greater than the wet bulb temperature.
In certain embodiments of the first aspect of the present invention, the pre-yellowing stage is carried out by curing the tobacco leaves in the bottom shed to a yellowing of the leaf tips of at least 2 cm in length.
In certain embodiments of the first aspect of the present invention, the baking time is from 12 to 16 hours, more preferably from 13 to 15 hours, for example 14 hours, prior to yellowing.
In certain embodiments of the first aspect of the present invention, the mid-yellowing stage is carried out at a rate of from 0.1 ℃/hr to 0.8 ℃/hr to the baking temperature, preferably at a rate of from 0.4 ℃/hr to 0.7 ℃/hr to the baking temperature, e.g., 0.3 ℃/hr, 0.5 ℃/hr, 0.6 ℃/hr.
In certain embodiments of the first aspect of the present invention, the mid-yellowing stage has a bake temperature of 39 ℃ to 41 ℃ (e.g., 39.5 ℃, 40 ℃, 40.5 ℃) and a wet bulb temperature of 37 ℃ to 38 ℃ (e.g., 37.5 ℃).
In certain embodiments of the first aspect of the present invention, the mid-yellowing stage is a curing to a yellowing area of the tobacco leaf of up to 6.
In certain embodiments of the first aspect of the present invention, the mid-yellowing stage is carried out for a baking time of 16 to 20 hours, preferably 17 to 19 hours, for example 18 hours.
In certain embodiments of the first aspect of the present invention, the temperature is raised to the baking temperature at a rate of 1 ℃/hr to 1.5 ℃/hr, preferably at a rate of 1 ℃/hr to 1.3 ℃/hr, e.g., 1.2 ℃/hr, 1.4 ℃/hr, during the post-fixing period.
In certain embodiments of the first aspect of the present invention, the post-fixing stage is at a baking temperature of 55 ℃ to 58 ℃, preferably 55 ℃ to 57 ℃, e.g., 55.5 ℃ to 56 ℃.
In certain embodiments of the first aspect of the present invention, the dry gluten period, the toasting temperature is from 60 ℃ to 63 ℃ (e.g., 61 ℃, 62 ℃) and the wet bulb temperature is from 38 ℃ to 41 ℃ (e.g., 39 ℃, 40 ℃).
In certain embodiments of the first aspect of the present invention, the dry rib stage is at a baking temperature of 61 ℃ to 63 ℃ and the wet bulb temperature of 39 ℃ to 41 ℃.
In certain embodiments of the first aspect of the present invention, the pre-yellowing stage is brought to the baking temperature at a rate of from 1 ℃/hr to 1.5 ℃/hr, preferably from 1 ℃/hr to 1.3 ℃/hr, for example 1.1 ℃/hr, 1.2 ℃/hr.
In certain embodiments of the first aspect of the present invention, the post yellowing stage is brought to the baking temperature at a rate of from 0.1 ℃/hr to 0.9 ℃/hr, preferably from 0.4 ℃/hr to 0.8 ℃/hr, for example 0.3 ℃/hr, 0.5 ℃/hr, 0.6 ℃/hr, 0.7 ℃/hr.
In certain embodiments of the first aspect of the present invention, the post yellowing stage is a baking temperature of from 42 ℃ to 43 ℃, for example 42.5 ℃.
In certain embodiments of the first aspect of the present invention, the wet bulb temperature is maintained at from 37 ℃ to 38 ℃, e.g., 37.5 ℃ during the post-yellowing stage.
In certain embodiments of the first aspect of the present invention, the post yellowing stage is a baking time of 14 to 17 hours, preferably 14 to 16 hours, for example 15 hours.
In certain embodiments of the first aspect of the present invention, the pre-fixing stage is carried out at a rate of from 0.1 ℃/hr to 0.9 ℃/hr to the baking temperature, preferably at a rate of from 0.4 ℃/hr to 0.8 ℃/hr to the baking temperature, for example 0.3 ℃/hr, 0.5 ℃/hr, 0.6 ℃/hr, 0.7 ℃/hr.
In certain embodiments of the first aspect of the present invention, the baking temperature is from 46 ℃ to 47 ℃, e.g., 46.5 ℃, prior to fixing.
In certain embodiments of the first aspect of the present invention, the wet bulb temperature is maintained at from 37 ℃ to 40 ℃, preferably from 37 ℃ to 39 ℃, for example 38 ℃ prior to fixing.
In certain embodiments of the first aspect of the present invention, before the fixing, the tobacco ribs of the tobacco leaves in the whole oven are cured to become yellow or light yellow, and the moisture content of the tobacco leaves in the middle and upper layers of the half of the oven reaches 20% (w/w).
In certain embodiments of the first aspect of the present invention, the baking time is 13 to 16 hours, such as 14 hours, 15 hours, prior to fixing.
In certain embodiments of the first aspect of the present invention, the wet bulb temperature is maintained at 39 ℃ to 41 ℃, e.g., 40 ℃ during the post-fixing period.
In certain embodiments of the first aspect of the present invention, the final stage of fixing the color is carried out by baking the cured tobacco leaves to a moisture content of 9% to 20% (w/w).
In certain embodiments of the first aspect of the present invention, the post-fixing period is from 11 to 15 hours, preferably from 12 to 14 hours, for example 13 hours.
In certain embodiments of the first aspect of the present invention, the dry-rib period and the baking time are 18 to 22 hours, such as 19 hours, 20 hours, 21 hours.
In certain embodiments of the first aspect of the present invention, the primary roasting method comprises the steps of:
(1) in the early stage of yellowing: charging fresh safflower Hongda tobacco leaves into a furnace, raising the temperature at the speed of 1-1.5 ℃/h to the baking temperature of 32-33.5 ℃, wherein the difference between the baking temperature and the wet bulb temperature is 1 ℃, and baking until the leaf tips of the tobacco leaves in the bottom shed at least 2 cm in length become yellow;
(2) in the middle stage of yellowing: continuously baking the tobacco leaves obtained in the step (1) at the speed of 0.1-0.8 ℃/hour until the baking temperature is 39-41 ℃, keeping the wet bulb temperature at 37-38 ℃, and baking until the yellowing area of the tobacco leaves reaches 6 percent;
(3) in the later yellowing stage: continuously baking the tobacco leaves obtained in the step (2) at the speed of 0.1-0.9 ℃/hour until the baking temperature is 42-43 ℃, keeping the wet bulb temperature at 37-38 ℃, and baking until the tobacco leaves are totally yellow;
(4) in the earlier stage of color fixing: and (4) continuously baking the tobacco leaves obtained in the step (3) at the speed of 0.1-0.9 ℃/hour until the baking temperature is 46-47 ℃, keeping the wet bulb temperature at 37-40 ℃, baking until the tobacco ribs of the tobacco leaves in the whole furnace turn yellow or light yellow, and enabling the water content of half of the tobacco leaves in the middle and upper layers in the furnace to reach 18% (w/w) -22% (w/w).
(5) At the later stage of color fixing: continuously baking the tobacco leaves obtained in the step (4) at the speed of 1-1.5 ℃/hour until the baking temperature is 55-58 ℃, keeping the wet bulb temperature at 39-41 ℃, and baking until the water content of 9 finished tobacco leaves reaches 18% (w/w) -22% (w/w);
(6) and (3) a tendon drying period: and (4) continuously baking the tobacco leaves obtained in the step (5) at the speed of 1-1.5 ℃/hour until the baking temperature is 60-63 ℃, keeping the wet bulb temperature at 38-41 ℃, and baking until the water content of the tobacco leaves and tobacco ribs in the whole furnace reaches 7% (w/w) -10% (w/w).
Certain embodiments of the first aspect of the present invention include one or more of the following 1) to 22):
1) in the step (1), the temperature is raised at the rate of 1-1.3 ℃/h, such as 1.1 ℃/h and 1.2 ℃/h;
2) in step (1), the baking temperature is 32.5-33.5 ℃, such as 32.5 ℃ and 33 ℃;
3) in step (1), the baking time is 12-16 hours, more preferably 13-15 hours, such as 14 hours;
4) in the step (2), the temperature is raised at the rate of 0.4 ℃/hour to 0.7 ℃/hour, such as 0.3 ℃/hour, 0.5 ℃/hour, 0.6 ℃/hour;
5) in the step (2), the baking time is 16-20 hours, preferably 17-19 hours, such as 18 hours;
6) in the step (3), the temperature is raised at a rate of 0.4 ℃/hour to 0.8 ℃/hour, such as 0.3 ℃/hour, 0.5 ℃/hour, 0.6 ℃/hour, 0.7 ℃/hour;
7) in step (3), the baking time is 14-17 hours, preferably 14-16 hours, for example 15 hours;
8) in the step (4), the temperature is raised at a rate of 0.4 ℃/hour to 0.8 ℃/hour, such as 0.3 ℃/hour, 0.5 ℃/hour, 0.6 ℃/hour, 0.7 ℃/hour;
9) in step (4), the wet bulb temperature is maintained at 37-39 ℃, for example, 38 ℃;
10) in the step (4), the tobacco ribs of the tobacco leaves in the whole furnace are baked to be light yellow, and the moisture content of half of the tobacco leaves in the middle layer and the upper layer in the furnace reaches 20 percent (w/w);
11) in the step (4), the baking time is 13-16 hours, such as 14 hours and 15 hours;
12) in the step (5), the temperature is raised at the rate of 1-1.3 ℃/h, such as 1.1 ℃/h and 1.2 ℃/h;
13) in the step (5), the baking temperature is 55-57 ℃, for example, 56 ℃;
14) in the step (5), the tobacco leaves are baked until the water content of 9 finished tobacco leaves reaches 20% (w/w);
15) in step (5), the baking time is 11 to 15 hours, preferably 12 to 14 hours, for example 13 hours;
16) in the step (6), the temperature is raised at the rate of 1-1.3 ℃/h, such as 1.1 ℃/h and 1.2 ℃/h;
17) in the step (6), the baking temperature is 61-63 ℃, for example 62 ℃;
18) in step (6), the wet bulb temperature is maintained at 39-41 ℃, for example, 40 ℃;
19) in the step (6), the tobacco leaves and the tobacco ribs are baked until the water content of the tobacco leaves and the tobacco ribs in the whole furnace reaches 9 percent (w/w);
20) in the step (6), the baking time is 18-22 hours, such as 19 hours, 20 hours and 21 hours;
21) in the step (1), before the temperature is raised, an air inlet and an air outlet of the furnace are closed;
22) and (6) stopping the fire after the step (6) is finished.
In the embodiment of the first aspect of the present invention, the baking time is a time during which baking is performed after completion of temperature rise in each stage.
In an embodiment of the first aspect of the present invention, the baking temperature is a dry bulb temperature.
In an embodiment of the first aspect of the present invention, the baking temperature is not lower than the wet bulb temperature in each stage.
In a second aspect, the invention relates to a tobacco leaf, which is prepared by the primary baking method according to any one of the first aspect of the invention.
In a third aspect, the present invention relates to a tobacco leaf composition comprising the tobacco leaf according to the second aspect of the present invention.
In a fourth aspect, the present invention relates to a smoking article comprising a tobacco leaf according to the second aspect of the present invention and/or a tobacco leaf composition according to the third aspect of the present invention; preferably, the tobacco product is a cigarette.
A fifth aspect of the invention relates to the use of a tobacco leaf according to any of the second aspects of the invention and/or a tobacco leaf composition according to any of the third aspects of the invention in a smoking article; preferably, the tobacco product is a cigarette.
In the present invention, unless otherwise specified,
the term "Honghuadajinyuan" original-name Lumeiyi tobacco is selected from Dajinyuan variant strains, is named due to deep red color of the flower color, and is one of the main cultivated varieties in Yunnan tobacco regions. The Honghuadajinyuan plant is cylindrical or tower-shaped, the height of the plant is 140cm, the pitch is 4-4.7cm, and the stem circumference is 9.5-11 cm. Oval waist leaves, gradually tapered leaf tips, flat leaf surfaces, wavy leaf edges, green leaf color, large leaf ears, thick main veins, delicate mesophyll tissues, small stem leaf angles and thick leaves.
The term "primary baking" refers to that fresh tobacco leaves growing in the field and having a mature moisture content of 80% -90% are harvested, placed in a specific device, and baked to prepare raw tobacco having a moisture content of 16% -18% by artificially adjusting conditions such as temperature, humidity and ventilation.
The term "three-stage baking" refers to a method for primary baking fresh tobacco leaves in a baking room after field picking, and comprises three stages, namely a yellowing stage, a color fixing stage and a tendon drying stage.
The term "wet bulb temperature" refers to the temperature sensing part of a common thermometer wrapped with wet gauze, the lower end of the gauze is immersed in water to maintain the air humidity of the temperature sensing part to be saturated, and a certain amount of air circulation is maintained around the gauze to make the surrounding air approach to equal enthalpy. After the readings have stabilized, the thermometer now displays a reading approximating the wet bulb temperature.
The term "dry bulb temperature" refers to the value read from a dry bulb temperature meter exposed to air without direct exposure to the sun, and is the actual temperature of the air contacting the surface of the bulb, also known as the baking temperature.
The term "bottom shed tobacco leaf" generally refers to tobacco leaf on a lower layer of hanging tobacco rod in a tobacco-containing chamber.
The term "flue-cured tobacco" refers to tobacco leaves, annual herbs, solanaceae. The plant is glandular hair, about 1 m high. The petioles are not obvious or are wing-shaped. The leaves were sticky when touched with hands. The panicle grows from the top. The calyx is cylindrical, the corolla is funnel-shaped, the shape is similar to an army number, and the tail end is pink. Capsule, seed tan. Native to south america, there is cultivation around the world.
The term "tip" is the corresponding term for the base of the blade, i.e., the tip portion of the blade.
The term "tobacco stem" refers to the main and branch veins of the lamina of tobacco.
The term "main vein" refers to a stem vein from the petiole to the tip of the leaf in the center of a plant leaf.
The term "branch" refers to the leaf vessel that branches from the main vessel.
The term "tobacco product" refers to a product for smoking, sucking, chewing or snuffing, produced in whole or in part from tobacco leaves as a raw material. Such tobacco products include, but are not limited to, cigarettes and chewing tobacco.
The terms "upper tobacco leaf, middle tobacco leaf and lower tobacco leaf" are judged according to the national standard classification factors (GB 2635-92, flue-cured tobacco [ S ]), and mainly have indexes such as maturity, leaf structure, identity, oil content, chroma and the like. Wherein the identity refers to the identity of tobacco leaves, refers to the thickness, cell density or weight per unit area of the tobacco leaves, and is also a concept of comprehensive state.
The invention has the following beneficial effects:
the primary curing method of the invention improves the grade quality of the Honghuadajinyuan flue-cured tobacco, reduces the proportion of the auxiliary group of tobacco, improves the integral average price of the flue-cured tobacco, and improves the appearance quality, the chemical component composition and the sensory quality of the flue-cured tobacco.
Detailed Description
Examples
1. Raw materials: fresh safflower Hongda tobacco leaves produced in Fujian Nanping tobacco area are picked to be mature properly, and the picking part is the middle part.
2. The primary baking method comprises the following steps:
(1) in the early stage of yellowing: and (3) charging the picked fresh safflower gold dollar tobacco leaves into a furnace, closing an air inlet tunnel and an exhaust window in time, and then igniting. The baking temperature is increased to 33 ℃ at the speed of 1.2 ℃/hour, the wet bulb temperature is kept at 32 ℃, and the tobacco leaves in the bottom shed are baked for 14 hours, wherein the tip part of the tobacco leaves with the length of more than 2 centimeters is yellow.
(2) In the middle stage of yellowing: and (2) continuing baking the tobacco leaves obtained in the step (1), wherein the baking temperature is increased to 40 ℃ at the speed of 0.6 ℃/hour, the wet bulb temperature is kept at 37 ℃, and the tobacco leaves are baked for 18 hours, and the yellowing area of the tobacco leaves reaches 6.
(3) In the later yellowing stage: and (3) continuing to bake the tobacco leaves obtained in the step (2), wherein the baking temperature is increased to 42.5 ℃ at the speed of 0.6 ℃/hour, the wet bulb temperature is kept at 37.5 ℃, and the tobacco leaves are baked for 15 hours, wherein the tobacco leaves are basically full yellow.
(4) In the earlier stage of color fixing: and (4) continuing baking the tobacco leaves obtained in the step (3), wherein the baking temperature is increased to 46.5 ℃ at the speed of 0.6 ℃/hour, the wet bulb temperature is kept at 38 ℃, and the tobacco leaves are baked for about 14 hours, the tobacco ribs of the whole furnace tobacco leaves become light yellow, and the water content of half of the tobacco leaves on the middle layer and the upper layer tobacco hanging rods in the furnace is 20% (w/w).
(5) At the later stage of color fixing: and (4) continuing baking the tobacco leaves obtained in the step (4), wherein the baking temperature is increased to 56 ℃ at the speed of 1.2 ℃/hour, the wet bulb temperature is kept at 40 ℃, and the tobacco leaves are baked for 13 hours, so that the moisture content of 9-formed tobacco leaves is 20% (w/w), and a large amount of aroma substances are formed.
(6) And (3) a tendon drying period: and (5) continuing baking the tobacco leaves obtained in the step (5), raising the baking temperature to 62 ℃ at the speed of 1.2 ℃/hour, keeping the wet bulb temperature at 40 ℃, baking for 20 hours, and stopping the fire when the moisture content of the whole furnace tobacco leaves and tobacco ribs is 9% (w/w).
Comparative example 1 traditional three-stage primary baking process
1. Raw materials: the same as in the examples.
2. The primary baking method comprises the following steps:
1) and (3) yellowing stage: charging fresh Honghuadajinyuan tobacco leaves into a furnace, closing an air inlet tunnel and an exhaust window in time, then igniting, raising the baking temperature to 36 ℃ at the speed of 1 ℃/hour, keeping the wet bulb temperature 1.5 ℃ lower than the baking temperature, and baking until the 8-shaped area of 85% of bottom shed tobacco leaves is obviously yellow; the baking temperature was then raised to 41 ℃ and the wet bulb temperature was maintained at 37 ℃ to achieve both yellowing and softening of the tobacco leaves. And, at this stage, when the baking temperature reached 41 ℃, the air intake tunnel and the exhaust fan were gradually turned on.
2) A color fixing stage: and (2) continuously baking the tobacco leaves obtained in the step 1), raising the baking temperature to 46 ℃ at a rate of raising the baking temperature by 1 ℃ every 2.5 hours, slowly raising the wet bulb temperature and keeping the wet bulb temperature at 37.5 ℃, accelerating the rate of raising the baking temperature to 1 ℃ every 1 hour until the tobacco leaves reach 54 ℃, continuously keeping the wet bulb temperature at 37.5 ℃, and continuously baking for 22 hours until the back of the tobacco leaves turns to be yellow.
3) And (3) a tendon drying stage: and (3) continuing baking the tobacco leaves obtained in the step 2), raising the baking temperature to 68 ℃ at the speed of 1 ℃/hour, keeping the wet bulb temperature at 41 ℃, baking for 23 hours until the moisture content of the tobacco leaves in the whole furnace reaches 8% (w/w), and stopping heating. When the baking temperature reaches above 60 ℃, the air inlet tunnel and the exhaust window are gradually closed.
Comparative example 2 Effect of Pre-yellowing baking temperature and Wet bulb temperature
The raw materials are the same as in the example. The preliminary baking method of reference example was the same as in example except that the baking temperature was 34 ℃ to 35 ℃ and the wet bulb temperature was 2 ℃ lower than the baking temperature in the early stage of yellowing.
Compared with the tobacco leaves obtained by primary baking in the examples, the tobacco leaves obtained by primary baking in the comparative example 2 are coarser, not fine and smooth, stiffer, not soft and darker in gloss.
Comparative example 3 Effect of yellowing Pre-baking time
The raw materials are the same as in the example. Referring to the primary baking method of the embodiment, the baking time in the early stage of yellowing is shortened, and the stage is ended when the tobacco leaves in the bottom shed are heated and the leaf tips begin to yellow, and the rest is the same as the embodiment.
Compared with the tobacco leaves obtained by primary baking in the examples, the tobacco leaves obtained by primary baking in the comparative example 3 have uneven color and darker luster.
Comparative example 4 Effect of mid-yellowing ramp Rate
The raw materials are the same as in the example. The preliminary baking method of the reference example, wherein the baking temperature was raised to 40c at a rate of 1 c/hour in the middle yellowing stage, was the same as in the example.
Compared with the tobacco leaves obtained by primary baking in the examples, the tobacco leaves obtained by primary baking in the comparative example 4 have uneven color distribution, rough and non-fine tobacco leaf tissues and stiff and non-soft tobacco leaves.
Comparative example 5 Effect of mid-yellowing baking temperature and Wet bulb temperature
The raw materials are the same as in the example. The preliminary baking method of the reference example was the same as that of the example except that the baking temperature was increased to 37 ℃ to 38 ℃ and the wet bulb temperature was maintained at 35 ℃ to 36 ℃ in the middle yellowing stage.
Compared with the tobacco leaves obtained by primary baking in the examples, the tobacco leaves obtained by primary baking in the comparative example 5 have lighter color and coarser and unsmooth tissue.
Comparative example 6 Effect of mid-yellowing baking time
The raw materials are the same as in the example. Referring to the primary baking method of the embodiment, in the yellowing middle stage, the tobacco leaves are baked until the yellowing area reaches 7-8 days, and the rest is the same as the embodiment.
The tobacco leaf obtained by the first curing of comparative example 6 was lighter and less uniform in color than the tobacco leaf obtained by the first curing of the example.
Test example 1 evaluation of appearance quality
The appearance quality of the tobacco leaves obtained by primary curing according to the national standard GB 2635-92 'flue-cured tobacco' evaluation example and comparative examples 1-6 is shown in Table 1.
TABLE 1 evaluation results of appearance quality of tobacco leaves
As can be seen from Table 1, the tobacco leaves obtained by the primary curing of the present invention had the best appearance quality and the highest score, as compared with the tobacco leaves obtained by the primary curing of comparative examples 1 to 6. The scores of the appearance indexes of the color, the maturity, the leaf structure, the identity, the oil content and the chromaticity of the tobacco leaves obtained by primary baking are all higher than those of the tobacco leaves obtained by primary baking of comparative examples 1-6.
Test example 2 grade quality evaluation
The tobacco leaves obtained by primary curing in the examples and comparative examples 1-6 were graded according to the national standard GB 2635-92 "flue-cured tobacco", and the results are shown in Table 2.
TABLE 2 evaluation results of tobacco grade quality
As can be seen from Table 2, the tobacco leaves obtained by the primary curing of the present invention have a higher first-class tobacco ratio, a lower second-class tobacco ratio, a higher orange-yellow tobacco ratio, a lower mottled tobacco ratio, and a higher average price than the tobacco leaves obtained by the primary curing of comparative examples 1 to 6.
Test example 3 chemical composition analysis
The tobacco leaves obtained in the examples and comparative examples 1 to 6 were subjected to chemical composition analysis, and the results are shown in Table 3.
The analysis method of each component is carried out according to the following standard (issued by the national tobacco monopoly bureau):
YC/T160-2002 'continuous flow method for measuring total plant alkaloid of tobacco and tobacco products';
YC/T159-2002 "continuous flow method for measuring water-soluble sugar in tobacco and tobacco products (measurement of water-soluble sugar includes measurement of total sugar and reducing sugar)";
YC/T162-2011 'continuous flow method for measuring chlorine of tobacco and tobacco products';
YC/T217-2007 continuous flow method for measuring potassium in tobacco and tobacco products.
TABLE 3 analysis results of chemical components of tobacco leaves
1 represents the difference between water-soluble total sugar and water-soluble reducing sugar; 2 represents the weight ratio of water-soluble total sugar to total plant alkaloid; 3 represents the weight ratio of water-soluble reducing sugar to total plant alkaloid; 4 represents the weight ratio of potassium to chlorine.
It is generally accepted in the art that high levels of water soluble total sugars and water soluble reducing sugars are preferred; suitable criteria for total plant alkaloid content are: 2.0 to 2.8 percent of middle leaves.
Comparative examples and comparative examples 1-6 chemical composition discovery in flue-cured tobacco leaves: the total plant alkaloid content of the tobacco leaves in the embodiment is lower than that of the tobacco leaves in the comparative examples 1-6, and the total plant alkaloid content of the tobacco leaves in the embodiment is more appropriate; the examples have higher water-soluble total sugar and water-soluble reducing sugar contents than the tobacco leaves of comparative examples 1-6; the examples have a higher potassium content than the tobacco leaves of comparative examples 1-6. In addition, the total sugar-base ratio, the reducing sugar-base ratio and the potassium-chlorine ratio of the tobacco leaves in the examples are higher than those in the comparative examples 1 to 6, and the difference between the two sugars is larger. This shows that, compared with comparative examples 1-6, the tobacco leaves obtained by the method of the present invention are more suitable in chemical component content, more sufficient in conversion, better in harmony, and higher in internal quality.
Test example 4 sensory quality assessment analysis
According to tobacco industry standard YC/T138-1998 'sensory evaluation method of tobacco and tobacco products', the tobacco leaves obtained by primary baking in the examples and comparative examples 1-6 are subjected to sensory quality evaluation analysis by using an integral circulation evaluation method, and the results are shown in Table 4.
TABLE 4 tobacco sensory quality evaluation results
Sensory evaluation results show that compared with the tobacco leaves obtained by primary baking in comparative examples 1-6, the tobacco leaves obtained by primary baking have the advantages of more elegant aroma, richer aroma, lower irritation, more comfortable aftertaste and higher overall sensory quality.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (12)

1. A primary baking method of Honghuadajinyuan tobacco leaves comprises the following steps:
(1) in the early stage of yellowing: charging fresh safflower Hongda tobacco leaves into a furnace, raising the temperature at the speed of 1-1.5 ℃/h to the baking temperature of 32-33.5 ℃, wherein the difference between the baking temperature and the wet bulb temperature is 1 ℃, and baking until the leaf tips of the tobacco leaves in the bottom shed at least 2 cm in length become yellow;
(2) in the middle stage of yellowing: continuously baking the tobacco leaves obtained in the step (1) at the speed of 0.1-0.8 ℃/hour until the baking temperature is 39-41 ℃, keeping the wet bulb temperature at 37-38 ℃, and baking until the yellowing area of the tobacco leaves reaches 6 percent;
(3) in the later yellowing stage: continuously baking the tobacco leaves obtained in the step (2) at the speed of 0.1-0.9 ℃/hour until the baking temperature is 42-43 ℃, keeping the wet bulb temperature at 37-38 ℃, and baking until the tobacco leaves are totally yellow;
(4) in the earlier stage of color fixing: continuously baking the tobacco leaves obtained in the step (3) at the speed of 0.1-0.9 ℃/hour until the baking temperature is 46-47 ℃, keeping the wet bulb temperature at 37-40 ℃, baking until the tobacco ribs of the tobacco leaves in the whole furnace become yellow or light yellow, and the moisture content of half of the tobacco leaves in the middle and upper layers in the furnace reaches 18% (w/w) -22% (w/w);
(5) at the later stage of color fixing: continuously baking the tobacco leaves obtained in the step (4) at the speed of 1-1.5 ℃/hour until the baking temperature is 55-58 ℃, keeping the wet bulb temperature at 39-41 ℃, and baking until the water content of 9 finished tobacco leaves reaches 18% (w/w) -22% (w/w);
(6) and (3) a tendon drying period: and (4) continuously baking the tobacco leaves obtained in the step (5) at the speed of 1-1.5 ℃/hour until the baking temperature is 60-63 ℃, keeping the wet bulb temperature at 38-41 ℃, and baking until the water content of the tobacco leaves and tobacco ribs in the whole furnace reaches 7% (w/w) -10% (w/w).
2. A primary baking method according to claim 1, comprising one or more of the following 1) to 22):
1) in the step (1), the temperature is increased at the rate of 1-1.3 ℃/h;
2) in the step (1), the baking temperature is 32.5-33.5 ℃;
3) in the step (1), the baking time is 12-16 hours;
4) in the step (2), the temperature is increased at the rate of 0.4-0.7 ℃/h;
5) in the step (2), the baking time is 16-20 hours;
6) in the step (3), the temperature is increased at the rate of 0.4-0.8 ℃/h;
7) in the step (3), the baking time is 14-17 hours;
8) in the step (4), the temperature is increased at the rate of 0.4-0.8 ℃/h;
9) in the step (4), the temperature of the wet bulb is kept between 37 and 39 ℃;
10) in the step (4), the tobacco ribs of the tobacco leaves in the whole furnace are baked to be light yellow, and the moisture content of half of the tobacco leaves in the middle layer and the upper layer in the furnace reaches 20 percent (w/w);
11) in the step (4), the baking time is 13-16 hours;
12) in the step (5), the temperature is increased at the rate of 1-1.3 ℃/h;
13) in the step (5), the baking temperature is 55-57 ℃;
14) in the step (5), the tobacco leaves are baked until the water content of 9 finished tobacco leaves reaches 20% (w/w);
15) in the step (5), the baking time is 11-15 hours;
16) in the step (6), the temperature is increased at the rate of 1-1.3 ℃/h;
17) in the step (6), the baking temperature is 61-63 ℃;
18) in the step (6), the wet bulb temperature is kept at 39-41 ℃;
19) in the step (6), the tobacco leaves and the tobacco ribs are baked until the water content of the tobacco leaves and the tobacco ribs in the whole furnace reaches 9 percent (w/w);
20) in the step (6), the baking time is 18-22 hours;
21) in the step (1), before the temperature is raised, an air inlet and an air outlet of the furnace are closed;
22) and (6) stopping the fire after the step (6) is finished.
3. The primary baking method according to claim 2, wherein in the step (1) of the item 3), the baking time is 13 to 15 hours.
4. The primary baking method according to claim 2, wherein in the step (2) of the item 5), the baking time is 17 to 19 hours.
5. The primary baking method according to claim 2, wherein in the item (7), in the step (3), the baking time is 14 to 16 hours.
6. The primary baking method according to claim 2, wherein in the 15) item, in the step (5), the baking time is 12 to 14 hours.
7. Tobacco leaves produced by the primary baking process according to any one of claims 1 to 6.
8. A tobacco leaf composition comprising the tobacco leaf of claim 7.
9. A smoking article comprising the tobacco leaf of claim 7 and/or the tobacco leaf composition of claim 8.
10. A smoking article according to claim 9, which is a cigarette.
11. Use of the tobacco leaf of claim 7 and/or the tobacco leaf composition of claim 8 in a tobacco product.
12. Use according to claim 11, wherein the tobacco product is a cigarette.
CN201810048385.7A 2018-01-18 2018-01-18 Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application Active CN108185496B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810048385.7A CN108185496B (en) 2018-01-18 2018-01-18 Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810048385.7A CN108185496B (en) 2018-01-18 2018-01-18 Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application

Publications (2)

Publication Number Publication Date
CN108185496A CN108185496A (en) 2018-06-22
CN108185496B true CN108185496B (en) 2020-06-16

Family

ID=62589649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810048385.7A Active CN108185496B (en) 2018-01-18 2018-01-18 Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application

Country Status (1)

Country Link
CN (1) CN108185496B (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125420A (en) * 1990-04-06 1992-06-30 Livingston Larry J Process for utilizing ethylene and heat to accelerate the yellowing of tobacco in a tobacco curing and drying process
CN101116461B (en) * 2007-08-31 2010-09-15 贵州省烟草科学研究所 Loose tobacco compression type baking technics in the baking room
CN101843357B (en) * 2009-03-24 2012-10-10 湖北中烟工业有限责任公司 New technology for curing red flower gold dollar tobacco leaf to be yellow and fragrant
CN102058148B (en) * 2011-01-13 2013-05-08 云南省烟草公司昆明市公司 Process for baking Hongda tobacco leaves
CN103564635B (en) * 2013-11-07 2015-05-20 河南农业大学 Baking process of comb-type tobacco clamps
CN106387975B (en) * 2016-09-09 2018-03-06 福建中烟工业有限责任公司 The first roasting method of tobacco leaf a kind of, tobacco leaf and application thereof
CN106387976B (en) * 2016-11-02 2018-06-12 西昌学院 Fragrant baking process is baked in a kind of safflower mammoth gold tobacco leaves barn scalding
CN106473223B (en) * 2016-11-07 2018-04-20 河南农业大学 A kind of baking method of the more fertile tobacco leaves of Hongda

Also Published As

Publication number Publication date
CN108185496A (en) 2018-06-22

Similar Documents

Publication Publication Date Title
CN101843357B (en) New technology for curing red flower gold dollar tobacco leaf to be yellow and fragrant
CN107028214B (en) It is adapted to the baking of flue-cured tobacco technique of the kind tobacco flue-curing of cloud and mist 116
CN107048459B (en) Reduce No. 7 tobacco leaf dusts of Henan cigarette and black poor dense drying method and its application
CN102860370B (en) Manufacture method of carbon-flavor tikuanyin tea
CN101978842A (en) Compression production process for fresh aromatic Tie Guanyin tea and product thereof
CN105341986B (en) A kind of method for improving Cold Dew aggrieved baking quality of tobacco
CN108618186B (en) K326 variety baking method based on fresh tobacco leaf quality
CN103504032A (en) Processing method of jasmine Jinjunmei black tea
CN103891937B (en) The preparation method of single fir tip many lobes jasmine tea
CN106387975B (en) The first roasting method of tobacco leaf a kind of, tobacco leaf and application thereof
CN106615288A (en) Processing method of white tea
CN108669621B (en) Tobacco leaf baking method for reducing black grain smoke occurrence rate in warm and wet tobacco area
CN107736642A (en) A kind of baking process of flue-cured tobacco cultivars Henan cigarette 11
CN106418646A (en) Upper tobacco harvesting and curing process for growing special flue-cured tobacco
CN108685144A (en) A kind of Hongda baking method based on fresh tobacco leaf quality
CN108185496B (en) Tobacco leaf primary baking method, tobacco leaf composition, tobacco product and application
CN105580920A (en) Gongfu oolong tea preparation method and products thereof
CN108185497B (en) Green first tobacco leaf primary baking method, obtained tobacco leaf and application thereof
CN109892683A (en) A kind of baking of flue-cured tobacco technique of suitable yatas6 kind tobacco flue-curing
CN108514151A (en) It is planted in the baking method of the tobacco NC71 of damp-heat area
CN105455187A (en) Intensive curing method for flue-cured tobacco variety NC102
CN112471575A (en) Baking method for sun-cured tobacco and flue-cured tobacco hybrid progeny
CN111493352A (en) Peduncle-removing baking method capable of effectively reducing characteristic attenuation of smoke fragrance of cinnabar
CN110786532B (en) Baking method for reducing TSNAs of different varieties of flue-cured tobaccos by using strains
CN111493350A (en) Flue-cured tobacco curing method for effectively improving quality of iron-poisoned tobacco leaves

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant