Burley tobacco essential oil, composition containing burley tobacco essential oil, and preparation and application thereof

Abstract

The present invention belongs to the field of burley tobacco processing, and discloses a burley tobacco essential oil, a composition containing the burley tobacco essential oil, and a popping bead and a preparation method. The burley tobacco essential oil is prepared by an improved water distillation method, and 100 parts of the prepared burley tobacco essential oil are mixed with 0.5-4 parts of acetic acid, 0.1-2 parts of furfural, and 0.01-2 parts of furfuryl alcohol to prepare a composition, which is further prepared into cigarette popping beads or cigarettes. The essential oil has a coordinated burley tobacco aroma, no water vapor smell, increases the aroma amount and choking feeling in cigarettes, makes the burley tobacco smell more obvious, has a higher sensory score, and can significantly improve the smoking comfort of cigarettes.

Description

Technical Field

[0001] The invention belongs to the field of burley tobacco processing, and in particular relates to burley tobacco essential oil and a preparation method and application thereof. Background Art

[0002] Tobacco aroma is an important indicator for evaluating the quality of tobacco leaves and cigarettes. At present, there are many studies on the aroma substances of flue-cured tobacco in China, and the research on the aroma substances of burley tobacco is also paying more and more attention. Due to the influence of complex factors such as growth environment conditions, cultivation technology and modulation methods, compared with foreign high-quality burley tobacco, domestic burley tobacco has shortcomings such as less obvious aroma characteristics, insufficient aroma volume, and stronger choking sensation. In addition, there are certain differences in the sensory quality of domestic tobacco leaves and burley tobacco from different tobacco areas and different parts.

[0003] In recent years, with the development of blended cigarettes in my country, in order to improve the quality of domestic burley tobacco, the State Tobacco Monopoly Bureau has invested a lot of money and conducted a comprehensive study on burley tobacco from agricultural cultivation to industrial processing. The quality of domestic burley tobacco has been significantly improved, and the attention paid to the aroma substances in burley tobacco has also been strengthened. The present invention provides a preparation method and application of burley tobacco essential oil to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the present invention proposes a burley tobacco essential oil, a composition containing burley tobacco essential oil, and its preparation and application. The burley tobacco essential oil of the present invention adopts a water distillation or steam distillation method to extract tobacco essential oil, so as to obtain the best distillation effect. At the same time, a flavoring agent is added to the natural burley tobacco essential oil obtained by distillation to enhance the flavor and replenish the fragrance, so as to prepare a composition containing burley tobacco essential oil, thereby making up for the shortcomings of natural burley tobacco essential oil in aroma quality and use value. The present invention also proposes that the composition containing burley tobacco essential oil is prepared into popping beads and further used in cigarettes, which can increase the aroma amount and choking feeling of cigarettes, make the burley tobacco flavor more intense, and give a higher sensory score, thereby significantly improving the smoking comfort of cigarettes.

[0005] The present invention provides a method for preparing burley tobacco essential oil, which comprises the following steps: distilling burley tobacco by a water distillation method to extract burley tobacco essential oil; wherein the distillation method refers to a water distillation method or a water steam distillation method; and the weight-to-volume ratio (kg / L) of the burley tobacco to water is 1:(2-20).

[0006] Wherein, when the water distillation method is adopted, the distillation temperature is 95-100°C; the distillation time is 5-7 hours;

[0007] Wherein, the distillation is a single distillation or a segmented distillation method.

[0008] Another aspect of the present invention provides burley tobacco essential oil prepared by the above-mentioned method for preparing burley tobacco essential oil.

[0009] Another aspect of the present invention provides a composition containing burley tobacco essential oil, which comprises the following raw materials in parts by weight: 100 parts of the above burley tobacco essential oil, 0.5-4 parts of acetic acid, 0.1-2 parts of furfural, and 0.01-2 parts of furfuryl alcohol.

[0010] Another aspect of the present invention provides use of the burley tobacco essential oil composition described above in preparing tobacco popping beads or cigarettes.

[0011] Another aspect of the present invention provides a tobacco explosive bead, which comprises the burley tobacco essential oil as described above, or a composition containing the burley tobacco essential oil.

[0012] Another aspect of the present invention provides a cigarette, which comprises the burley tobacco essential oil, a composition containing the burley tobacco essential oil, and a cigarette-use bursting bead as described above.

[0013] The present invention obtains an optimized burley tobacco essential oil extraction method and a composition containing burley tobacco essential oil in a specific ratio through screening, distillation, cooling and separation of tobacco leaf raw materials, flavoring and replenishing of burley tobacco essential oil, preparation of popping beads, and sensory evaluation. Among them, the present invention extracts essential oils from two tobacco leaf raw materials with different degrees of pulverization using an improved water distillation method, and flavors the obtained essential oils, thereby increasing the characteristic aroma of burley tobacco, increasing the aroma volume and the choking feeling, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The invention discloses a process preparation and optimization flow chart, which comprises: extracting burley tobacco essential oil through an optimized preparation process, enhancing and replenishing the extracted burley tobacco essential oil with flavor, and diluting the burley tobacco essential oil after the enhancement and replenishment with ODO to prepare popping beads and popping bead cigarettes. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the examples and drawings. These examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The process, conditions, experimental methods, etc. for implementing the present invention, except for the contents specifically mentioned below, are all common knowledge and common common sense in the art, and the present invention is not particularly limited.

[0016] The present invention provides a method for preparing burley tobacco essential oil, which comprises the following steps:

[0017] (1) Burley tobacco pretreatment;

[0018] Washing and crushing burley tobacco;

[0019] (2) distilling the burley tobacco using an improved distillation method to extract burley tobacco essential oil;

[0020] The improved distillation method includes water distillation and steam distillation.

[0021] In step (1), there is no particular limitation on the step of washing the burley tobacco, which is mainly used to wash away dust on the surface of the tobacco.

[0022] In step (1), the burley tobacco is crushed, including crushing the tobacco into tobacco flakes or tobacco powder. There is no particular restriction on the size of the tobacco flakes and tobacco powder, but it needs to be conducive to the extraction process, such as the size of the tobacco flakes is about 3×3 cm; the tobacco powder is smaller than 8 mesh. In a specific embodiment, the size of the tobacco flakes can also be about 1×1 cm, about 2×2 cm, about 3×2 cm, about 1×2 cm, about 1×3 cm, about 3×1 cm, etc., and the tobacco powder can be 1 mesh, 2 mesh, 3 mesh, 4 mesh, 5 mesh, 6 mesh, 7 mesh, 8 mesh, etc.

[0023] In step (2), the distillation is carried out in an extraction tank suitable for water distillation or steam distillation. The extraction tank can be any type of device that can achieve the extraction purpose.

[0024] In step (2), when the distillation method in water is adopted, the distillation temperature is 95-100° C. For example, the temperature can be 95-96° C., 96-97° C., 97-98° C., 98-99° C., 99-100° C., specifically, it can be 95° C., 96° C., 97° C., 98° C., 99° C., 100° C., and more preferably 100° C. In step (2), the distillation time is 5-7 hours, preferably 6 hours.

[0025] In step (2), the distillation can be carried out by single distillation or segmented distillation, including single distillation in water, segmented distillation in water, single steam distillation (water distillation method), segmented steam distillation method; preferably, a two-stage treatment method is adopted, such as collecting essential oil once when distilling for a period of time, and then continuing to distill for a period of time to collect essential oil. In the present invention, when the segmented distillation method is adopted, the distillation time of the front and back sections can be 1-10:1-10, for example, it can be 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1. More preferably, the present invention collects essential oil once when the distillation time is half, and then continues to distill for the same time to collect essential oil. When distillation is performed in sections, the essential oil obtained in the front section has a more elegant aroma, while the essential oil obtained in the rear section is more mellow. Because both sections have a burley tobacco flavor and the yield is reduced due to sectioning, the essential oils extracted from the front section and the rear section can be combined, and after the combination, a natural burley tobacco characteristic aroma is presented.

[0026] In step (2), when the steam distillation is used, the tobacco is placed on the partition of the extraction tank, the water level is lower than the partition, and the heating distillation is performed. The distillation temperature is 95-100° C. and the distillation time is 5-7 hours.

[0027] In the present invention, there is no particular limitation on the heating method used for distillation, as long as the temperature control required for distillation can be achieved.

[0028] In a specific embodiment, a single water distillation means: taking 1 kg of tobacco slices and putting them into an extraction tank of a 20L water vapor distillation device, adding 10L of water to immerse the tobacco slices, heating until distillate is produced, starting the timer, and distilling for 6 hours. Collecting the essential oil and weighing it.

[0029] In a specific embodiment, segmented water distillation refers to: using a water distillation method to collect essential oil in two stages. Take 1 kg of tobacco slices and put them into an extraction tank of a 20L water vapor distillation device, add 10L of water to immerse the tobacco slices, heat until distillate appears, start timing, collect essential oil once when distillation reaches 3 hours, and then continue distillation for 3 hours, a total of 6 hours of distillation, and weigh them to calculate the yield.

[0030] In a specific embodiment, a steam distillation is as follows: 1 kg of tobacco leaves are placed on the baffle of the extraction tank of a 20 L steam distillation device, 5 L of water is added, the water level is lower than the baffle, and the distillation is heated until distillate is produced, and the timing is started, and the distillation is performed for 6 hours. The essential oil is collected and weighed.

[0031] In a specific embodiment, segmented steam distillation means: taking 1 kg of tobacco leaves and loading them onto the partition in the extraction tank of a 20L steam distillation device, adding 5L of water, with the water level lower than the partition, heating until distillate appears, starting timing, and collecting essential oil once after distilling for 3 hours, and then continuing to distill for 3 hours, for a total of 6 hours, and weighing them separately to calculate the yield.

[0032] The present invention also provides a burley tobacco essential oil prepared according to the preparation method of the burley tobacco essential oil as described above. The burley tobacco essential oil has a burley tobacco characteristic in its olfactory aroma. If distillation in water is used, since the water vapor smell is slightly strong, the newly extracted burley tobacco essential oil can be placed for a period of time before use, and the placement time can be selected as needed, such as 5 days, 10 days, 15 days, 20 days and above, and the water vapor smell usually disappears after being placed for about 15 days.

[0033] According to the aroma performance of the prepared burley tobacco essential oil in cigarette smoke, a flavoring and aroma supplementation operation is performed, and the prepared popping beads are placed in a cigarette filter rod for sensory evaluation to achieve the purpose of increasing the characteristic aroma of burley tobacco. The present invention further proposes a composition containing burley tobacco essential oil, which comprises the following raw materials by weight: 100 parts of burley tobacco essential oil, 0.5-4 parts of acetic acid, 0.1-2 parts of furfural, and 0.01-2 parts of furfuryl alcohol. Preferably, 100 parts of burley tobacco essential oil, 1-2 parts of acetic acid, 0.5-1 parts of furfural, and 0.1-0.5 parts of furfuryl alcohol.

[0034] A further preferred raw material ratio is: 100 parts of burley tobacco essential oil, 1 part of acetic acid, 0.5 parts of furfural, and 0.1 parts of furfuryl alcohol.

[0035] A further preferred raw material ratio is: 100 parts of burley tobacco essential oil, 2 parts of acetic acid, 1 part of furfural, and 0.5 parts of furfuryl alcohol.

[0036] A further preferred raw material ratio is: 100 parts of burley tobacco essential oil, 1 part of acetic acid, 0.5 parts of furfural, and 0.1 parts of furfuryl alcohol.

[0037] The present invention also provides a burley tobacco essential oil prepared by the above-mentioned burley tobacco essential oil preparation method, and the use of a composition containing the burley tobacco essential oil in preparing tobacco popping beads and cigarettes. The burley tobacco essential oil composition is used as a core component to improve the aroma of burley tobacco, and other components can be selected as needed.

[0038] When dripping the popping beads, in order to make the burley tobacco essential oil drip into popping beads for cigarettes, caprylic decanoic acid glyceride (ODO) is used for dilution, and the dilution multiple is determined according to the amount of raw materials and the amount of water used for extraction. For example, when the burley tobacco essential oil extracted from 1 kg of raw materials is diluted 5-10 times with caprylic decanoic acid glyceride (ODO), the popping beads dripped in the cigarette present a coordinated burley tobacco aroma, especially when diluted 10 times, the burley tobacco aroma presented by the dripped popping beads in the cigarette is the most coordinated and the effect is the best; wherein, the method steps of extracting the burley tobacco essential oil from 1 kg of raw materials include: using a single or segmented water distillation method (water is 10 L) or a steam distillation method (water is 5 L), the distillation temperature is 95-100°C, and the distillation time is 5-7 hours.

[0039] The present invention also provides the use of the above-mentioned burley tobacco essential oil in cigarettes / cigarettes, wherein the burley tobacco essential oil is mixed with other raw materials as a flavoring agent to prepare cigarette popping beads, or is added to cigarette shreds as a flavoring agent to prepare cigarettes.

[0040] The present invention also provides the use of the burley tobacco essential oil in cigarettes, wherein the amount of the burley tobacco essential oil is 7‰ to 1% of the weight of the cigarette shreds.

[0041] The present invention also provides a popping bead for cigarettes, which comprises the burley tobacco essential oil or a composition containing burley tobacco essential oil or essential oil for popping bead as described above. When dripping the popping bead, in order to make the burley tobacco essential oil drip into the popping bead for cigarettes, octyl decanoate glyceride (ODO) is used for dilution, and the dilution multiple is determined according to the amount of raw materials and the amount of water used for extraction. For example, when the burley tobacco essential oil extracted from 1kg of raw materials is diluted 5-10 times with octyl decanoate glyceride (ODO), the popping bead dripped presents a coordinated burley tobacco aroma in the cigarette, especially when diluted 10 times, the burley tobacco aroma presented by the popping bead dripped in the cigarette is the most coordinated and has the best effect; wherein, the method steps of extracting burley tobacco essential oil from 1kg of raw materials include: using a single or segmented water distillation method (water is 10L) or a steam distillation method (water is 5L), the distillation temperature is 95-100°C, and the distillation time is 5-7 hours.

[0042] The present invention also provides a cigarette, which comprises the burley tobacco essential oil or the composition containing the burley tobacco essential oil or the cigarette bursting beads as described above.

[0043] Compared with the prior art, the present invention has the following advantages:

[0044] 1) The present invention adopts water distillation or steam distillation to extract burley tobacco essential oil. There is basically no significant difference in the yield of different pretreatment methods, and the steam distillation method is better.

[0045] 2) The present invention uses water distillation or steam distillation to extract burley tobacco essential oil, and the sensory evaluation shows the characteristics of burley tobacco. The sensory evaluation is:

[0046] Steam distillation method - the aroma shows the characteristics of burley tobacco, the steam smell is lighter and disappears after half a month;

[0047] Water distillation method - the aroma shows the characteristics of burley tobacco, and the water vapor smell is slightly heavier than that of steam distillation, which disappears after being left for half a month.

[0048] (3) When distillation is performed in stages, the essential oil obtained in the front stage has a more elegant aroma, while the essential oil obtained in the back stage has a mellower aroma. Since both stages have a burley tobacco flavor and the staged yield is reduced, the essential oils extracted from the front stage and the back stage can be combined, and the combined essential oils present a natural burley tobacco characteristic aroma.

[0049] (4) Compared with the burley tobacco essential oil without any additional flavoring substances, the burley tobacco essential oil composition obtained after the flavoring substances are added has a more obvious, rich and natural burley tobacco flavor in the popping bead cigarettes. The essential oil flavor is naturally coordinated with the tobacco flavor itself. The characteristic aroma of burley tobacco is enhanced, the aroma volume and the choking sensation are significantly increased, the sensory score is higher, and the smoking comfort of cigarettes can be significantly improved, which can meet the personalized and diversified needs of consumers.

[0050] (5) When dripping the popping beads, the burley tobacco essential oil is diluted. For example, when the popping beads are diluted 10 times, the burley tobacco aroma presented in the cigarette is the most coordinated and the effect is the best. The method and steps of the burley tobacco essential oil include: 1 kg of burley tobacco is distilled in water (10L of water) or steam distilled (5L of water) once or in stages, the distillation temperature is 95-100°C, and the distillation time is 5-7 hours.

[0051] Example 1 Extraction of burley tobacco essential oil by single distillation and segmented distillation

[0052] Step 1: Take two types of burley tobacco leaves and slices (about 3×3 cm) and tobacco powder (less than 8 mesh) with different degrees of crushing.

[0053] Step 2: extracting the essential oil from the burley tobacco flakes or tobacco powder by using improved water distillation and steam distillation methods respectively.

[0054] Primary distillation in water: take 1kg of tobacco slices or tobacco powder and put it into the extraction tank of 20L water vapor distillation equipment, add 10L water to immerse the tobacco slices, heat until distillate appears, start timing, distill for 6 hours, weigh and calculate the yield.

[0055] Segmented water distillation: Take 1kg of tobacco slices or tobacco powder and put it into the extraction tank of 20L water steam distillation equipment, add 10L water to immerse the tobacco slices, heat until there is distillate, start timing, collect essential oil once when distillation reaches 3 hours, then continue distillation for 3 hours, collect essential oil, weigh it separately and calculate the yield. Mix the essential oils extracted by two stages of distillation to obtain burley tobacco essential oil.

[0056] Steam distillation (water distillation): Take 1kg of tobacco sheets or tobacco powder and put it on the partition in the extraction tank of 20L steam distillation equipment, add 5L of water, the water level is lower than the partition, heat until distillate appears, start timing, distill for 6 hours, collect essential oil, weigh and calculate the yield.

[0057] Segmented steam distillation: Take 1kg of tobacco flakes or tobacco powder and put them on the partition in the extraction tank of 20L steam distillation equipment, add 5L of water, the water level is lower than the partition, heat until there is distillate, start timing, collect essential oil once when distillation reaches 3 hours, then continue distillation for 3 hours, collect essential oil, weigh them separately and calculate the yield. Mix the essential oils extracted by two stages of distillation to obtain burley tobacco essential oil.

[0058] Example 2 Burley tobacco essential oil is added to burley tobacco flavor for smoking

[0059] The burley tobacco essential oil extracted in Example 1 is added to burley tobacco tobacco flavor, and dripped into tobacco popping beads for smoking. The tobacco flavor is burley tobacco tobacco flavor.

[0060] Example 3 Effects of flavoring components, flavoring components, and ODO dilution on smoking evaluation of cigarettes containing burley tobacco essential oil

[0061] (3.1) According to the aroma performance of the burley tobacco essential oil obtained in Example 2 in the popping bead cigarette, 1% acetic acid, 5‰ furfural, and 1‰ furfuryl alcohol (the mass percentage of each component in the burley tobacco essential oil) were added to obtain a composition A containing burley tobacco essential oil. The composition A was diluted 5 times with caprylic decanoate (ODO) to make popping beads, and the popping beads were put into cigarettes for evaluation.

[0062] (3.2) According to the aroma performance of the burley tobacco essential oil obtained in Example 2 in the popping bead cigarette, acetic acid 2%, furfural 1%, and furfuryl alcohol 5‰ (the mass percentage of each component in the burley tobacco essential oil) were added to obtain a composition B containing burley tobacco essential oil. The composition B was diluted 5 times with ODO and dripped into popping beads, and the dripped popping beads were put into cigarettes for evaluation.

[0063] (3.3) According to the aroma performance of the burley tobacco essential oil obtained in Example 2 in the popping bead cigarette, acetic acid 2%, furfural 1%, and furfuryl alcohol 5‰ (the mass percentage of each component in the burley tobacco essential oil) were added to obtain a composition C containing burley tobacco essential oil. The composition C was diluted 10 times with ODO to make popping beads, and the popping beads were put into cigarettes for evaluation.

[0064] (3.4) According to the aroma performance of the burley tobacco essential oil obtained in Example 2 in the popping bead cigarette, 1% acetic acid, 5‰ furfural, and 1‰ furfuryl alcohol (the mass percentage of each component in the burley tobacco essential oil) were added to obtain a composition D containing burley tobacco essential oil. The composition D was diluted 10 times with ODO to make popping beads, and the popping beads were put into cigarettes for evaluation.

[0065] (3.5) According to the aroma performance of the burley tobacco essential oil obtained in Example 2 in the popping bead cigarette, acetic acid 2%, furfural 1%, and furfuryl alcohol 5‰ (the mass percentage of each component in the burley tobacco essential oil) were added to obtain a composition C containing burley tobacco essential oil. The composition C was not diluted with ODO, and was dripped into popping beads, and the dripped popping beads were put into cigarettes for evaluation.

[0066] It can be seen from the above Example 1 that for different raw materials, the yields of burley tobacco essential oil extracted by different distillation methods such as single distillation in water, segmented distillation in water, single steam distillation, and segmented steam distillation are not much different; compared with the single distillation method, the segmented distillation yield will be slightly lower, but the essential oils extracted from the two stages can be combined; compared with the single distillation method in water, the single steam distillation method has a slightly higher yield,

[0067] In Example 2, sensory evaluation of burley tobacco essential oil: for different raw materials, burley tobacco essential oil extracted by different distillation methods such as single water distillation, segmented water distillation, single steam distillation, and segmented steam distillation, all show burley tobacco characteristics. Compared with the steam distillation method, the essential oil obtained by the water distillation method has a slightly heavier water vapor taste, but after being placed for half a month, the water vapor taste of the essential oils obtained by the two methods disappears. When the distillation method is carried out in stages (segmented water distillation, segmented steam distillation), the front section has a more elegant smoke fragrance, and the back section is more mellow. Because both sections have a burley tobacco flavor, they present a natural burley tobacco characteristic aroma after merging, which is more natural than the burley tobacco characteristic aroma of the essential oil obtained by the single distillation method.

[0068] In Example 3, the burley tobacco essential oil composition supplemented with flavor substances is compared with the burley tobacco essential oil without flavor substances. After supplementing with acetic acid, furfural and furfuryl alcohol, the burley tobacco popping beads present a coordinated and obvious burley tobacco aroma in the cigarette, and the sensory score is high. Among them, compared with (3.4), the burley tobacco essential oil composition obtained by supplementing 2% acetic acid, 1% furfural and 5‰ furfuryl alcohol in (3.3) has the most coordinated burley tobacco aroma in the cigarette, the best effect, and the burley tobacco flavor in the popping bead cigarette is more obvious, and the sensory score is higher.

[0069] In Example 3, compared with the method (3.5) in which ODO dilution was not used, the burley tobacco beads prepared by diluting 10 times with ODO in (3.3) presented the most coordinated burley tobacco aroma in the cigarette and had the best effect. The burley tobacco flavor in the burley tobacco beads cigarette was more obvious and the sensory score was higher.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A composition containing burley tobacco essential oil, characterized in that: The composition is composed of the following raw materials in parts by mass: 100 parts of burley tobacco essential oil, 0.5-4 parts of acetic acid, 0.1-2 parts of furfural, and 0.01-2 parts of furfuryl alcohol; the preparation method of the burley tobacco essential oil comprises the following steps: distilling burley tobacco by a water distillation method to extract the burley tobacco essential oil; wherein the distillation method refers to a water distillation method and / or a water vapor distillation method; the weight volume ratio of the burley tobacco to water is 1: (2-20), and the unit is kg / L; the distillation is a segmented distillation method; when the water distillation method is adopted, the distillation temperature is 95-100°C; the distillation time is 5-7 hours; when the water vapor distillation method is adopted, the tobacco is placed on a baffle of an extraction tank, the water level is lower than the baffle, heated, and water vapor distilled, the distillation temperature is 95-100°C; the distillation time is 5-7 hours; the segmented distillation method refers to distilling in two stages, the two stages have the same distillation time, and the essential oils extracted by the two stages of distillation are mixed to obtain the burley tobacco essential oil.

2. The composition containing burley tobacco essential oil according to claim 1, characterized in that: The composition is composed of the following raw materials in parts by weight: 100 parts of burley tobacco essential oil, 1-2 parts of acetic acid, 0.5-1 part of furfural, and 0.1-0.5 part of furfuryl alcohol.

3. The composition containing burley tobacco essential oil according to claim 1, characterized in that The burley tobacco is also cleaned and / or crushed before distillation. The crushing refers to crushing the tobacco into tobacco sheets or tobacco powder. The size of the tobacco sheets is 3×3 cm; the tobacco powder is smaller than 8 meshes.

4. Use of the composition containing burley tobacco essential oil according to any one of claims 1 to 3 in preparing tobacco popping beads or cigarettes.

5. A cigarette popping bead, characterized in that: The invention comprises the composition containing burley tobacco essential oil according to any one of claims 1 to 3.

6. A cigarette, characterized in that: It comprises the composition containing burley tobacco essential oil according to any one of claims 1 to 3 or the tobacco explosive beads according to claim 5.

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